SUBJECT INDEXINDUSTRIAL AND ENGINEERING CHEMISTRY

VOLUME 30—1938

A B R A SIV E S. Q uest for H a rd M aterials. F . J. T o n e ............ 232A bsorption, Gas. Log M ean Difference. T . N . D a lto n ............. 1081A bsorption Tower. Flooding Velocities in Packed Colum ns. T . K.

Sherwood, G. H . Shipley, and F . A. L. H ollow ay ................................. 7G5A cetone. L. C. Cooley (C orrec tion)............................................................... 443A c i d s

“ M ixed,” H eats of D ilu tion of. F. H . Rhodes and C. C. N e lso n .. . . 648Organic, E s te r Synthesis from Olefins and. T . W . E vans, K. R .

E d lund , and M . D . T a y lo r......................................................................... 55T urbines D escaled w ith. J . B. E n tr ik in .................................................. 1279

A dhesives. Sodium Silicate B onds in C orrugated F iberboard . 0 . E .Schupp, J r ., and E . R . B o ile r......................................................................... 603

Aerogel C atalysts . Conversion of Alcohols to Amines. K . K carby,S. S. K istler, and Sherlock Swann, J r ......................................................... 1082

A gricultural A djustm en t Act E stablishes L aboratories for R esearchin U tilization of F arm P roducts. Large O rder. E d ito ria l.................... 243

A gricultural W aste. Corncobs, D estructive D istilla tion of. T . R.M cE lhinncy, B. M . Becker, and P. B. Jaco b s .......................................... 697

A ir C onditioning E qu ipm en t. Design, Selection, and Efficiency.M argaret Inge ls................................................................................................... 980

A ir C onditioning Sym posium . See Synym sium under D rying.A irplane Dopes, P lastics S u itab le for. G. M . K line and C. G. M alm -

b e rg ............................................................................................................................... 542Alchem ical Pain tings, R eproductions o f..........................................................

70, 145, 269, 427, 500, 631, 834, 933, 992, 1162, 1255, 1389A l c o h o l s

Blends w ith G asoline in In te rn a l C om bustion Engines. L. C.L ich ty and C. W . P h e lp s ................................................................................. 222

B uty l, from F erm en ta tion of W ood Sugar. N . O. Sjolander, A. F.Langlykke, and W . H . P e te rso n ............................................................... 1251

B utyl, H ardw oods and Softwoods C ooked w ith. J . M . M cM illen,R . A. G ortner, H en ry Schm itz, and A. J . B ailey ...................... 1407

Conversion to Amines by Aerogel C ataly sts . K . K earby, S. S.K istler, and Sherlock Swann, J r ...................................................... 1082

E th y l, E qu ilib rium with E thy lene and W ater, C ataly s ts for. A. J.P a ik , Sherlock Sw ann, J r., and D . B. K eyes.............................. 173

E th y l, W hey P ro teins and Lactose Separa ted by E x traction with.A braham Leviton and A lan L eigh ton ............................................ 1305

M ann ito l an d Sorbitol, R esins from . R . M . Goepp, J r ., and K . R.B row n.................................................................................................................. 1222

M ethano l as Antifreeze. Loss in A utom obile Cooling Systems.H . C. D uus, E . H . K eller, and II . M . C a d o t.................... 142

Alloys, Sodium -Lead, by C arbon R eduction . G. L. P u tn a m ................. 1138A lum ina, A ctivated , A ir and Com m ercial Gases D ried w ith. R . B. D err 384A lum inum . B auxite, O rganic M atte r in. D on U tle y ........................... 35A lum inum S teara te Greases. F . J . L ic a ta ......................................... 550A m e r i c a n C h e m i c a l S o c i e t y

M em bers H ave R ep u ta tio n as Booklovers and Scholars. R ep u ta ­tio n M ain tained . E d ito ria l .................................................................... .. 1206

M em bers M ain ta in H igh S tandards a t M eetings. M irror. E d i­to r ia l........................................................ 366

M icrochem ical D ivision A pproved a t M ilwaukee. E d ito ria l 1090P residen t of. N eed for Speaking E ngagem ents to Be C urta iled .

Spare O ur P residen t. E d ito r ia l............................................................... 487P residen t W hitm ore Sends G reetings to M em bers o f ................... 1

A m erican S tandards Association, E fforts of, to Set U p S tandardM ethods in C ertification of P roducts for Consum ers. E d i to r ia l . . . . 725

Amines, Alcohols C onverted to , b y Aerogel C ataly sts . K . K earby, S.S. K istler, and Sherlock Swann, J r ...................................................... 1082

Am m onium Sulfate, R eactions of Calcined P hosphate w ith Superphos­phate and. K . C. Beeson and K. D. J ac o b ............................................ 304

A ntifreeze. M ethano l Loss in A utom obile Cooling System s. H . C.D uus, E . H . K eller, and H . M . C ad o t........................................................ 142

A ntiseptic, Benzoic Acid and Inorganic S a lts as. E ffect of pH . R .I i . Goshorn, E . F . Degering, and P. A. T e tr a u lt ................................... 646

A pple Juice, F lash Pasteu rization of. C . S. Pederson and D . K.T ressler........................................................ 954

A rabinose, B utyl-A cetonic F e rm en ta tion of. L. A. Underkofler andJ . E . H un ter, J r ......................................... 480

A rom atics, Olefin H ydrogenation by N ickel C a ta ly s t in Presence of.V. N . Ipa tie ff and B. B. C o rso n . ......................................................... 1039

A rtichoke H earts. E nzym e A ctiv ity in Frozen Vegetables. M . A.Joslyn , C. L. Bedford, and G. L. M arsh .................................................... 1068

A s p h a l tA sphaltic B itum en Affinity w ith H ydroph ilic Aggregate Im proved

b y F u rfu ra l and Its Resinous D erivatives. H . F . W in te rk o rn .. 1362Flow P roperties M easured in A bsolute U nits. R . N . T rax lc r 322S tru c tu re Ind ica ted by Solvent-T reated Surfaces. R . N . T raxler

an d C. E . C oom bs.......................................................................................... 440A utom obile B rakes, H ydrau lic , F lu ids for. R . R . F u lton . (Correc­

tion, 5 2 3 ) • 422A utom obiles, A ntifreeze (M ethanol) Lost in Cooling System s of. H.

C. D uus, E . H . K eller, and H . M . C ad o t................................................. 142

B A C T E R IC ID E , Benzoic Acid and Inorganic Salts as. Effect of pH .R . H . G oshorn, E . F . Degering, and P . A. T e tr a u l t ............................. 646

Bagasse P u lped w ith Alcoholic N itric Acid. P u lp Yields and C harac­teristics. S. I . A ronovsky and D . F . J . L y n ch ...................................... 790

B all M ill. See Grinding.B anana, Sugar C hanges in, during R ipening. G. L. 1 oland, J . I .

M anion, M . W . B renner, and P . L. H arris. (C orrection, 523)----- 340B auxite, O rganic M atte r in, from A rkansas. D on U tley ...................... 35Benzene V apor for C ontro l of Tobacco Blue M old. P . W . G u m a e r . . . 1076Benzoic Acid, A ntiseptic and B actericidal Action of. E ffect of pH .

R. H . Goshorn, E . F . Degering, an d P . A. T e t r a u l t . ............ 646Berolzheim er Series of R eproductions. See A lchem ical 1 a in tings.B eryllium , D evelopm ents in . C . B. Sawyer an d B. R . K je llg ren 501B eryllium , Econom ics of. H . C. M eyer. (Correction, 562)................ 431

B e v e r a g e s , A l c o h o l i c ,D istille ry B y-Products. L. C. Cooley. (H . O. C hute; Cooley,

C orrespondence, 1203) ............................................................................. 615W ine. C ham pagne, Sugars in P roduction of. H . E . Goresline and

F . M . C ham plin .............................................................................................. 112W ine. Sherry, E lectro ly tic P roduction of R ancio F lavo r in. M.

A. Jo sly n .• • •.• ; ........................... 568B itum en-A sphalt Affinity w ith H ydrophilic Aggregate Im proved by

F urfu ra l a nd I ts Resinous D erivatives. H . F . W in te rk o rn ............... 1362Brakes, H ydrau lic , F lu ids for. R . R . F u lton . (C orrection, 523)................. 422Brick, F ly Ash, H um id Aging of. J . M . P ilcher and F. C. V ilb rand t

(C orrec tion)............................................................................................................... 772B utane-M ethane System , G as-L iquid E q u ilib ria for. G. W . N eder-

b ra g t ............................................................................ 587B utane-P en tane M ixture. C om pressibility below One A tm osphere.

F . W. Jessen and J . H . L igh tfoo t............................................................ 312B utanol. See B u ty l under Alcohols.B utenes Polym erized b y Solid Phosphoric Acid C ataly st. V. N.

Ipa tie ff and R . E . S chaad .................................................................................... 596B utyl-A cetonic F erm entation . See Ferm entation .B u ty l Alcohol. See Alcohols.

C A K E B atte r S tab ility . E ffect of V ariation in H ydrogen-Ion C on­cen tra tion . E m ily G rcw e............................................................................... 719

C alcium C hloride. Sec following item.C alcium C hlorophosphate, M ono-, from R eaction of Calcium Chloride

and Phosphoric Acid. E . J . Fox and K. G. C la rk ............................... 701Calcium P hosphate, T ri-, F luoride R em oval from P o tab le W aters by.

H ow ard Adler, George K lein, and F . IC. L in d say .................................. 163C alcium P hosphate, T ri-, F luorine R em oval from W ater by . A. S.

B ehrm an and 11. G ustafson ............................................................................. 1011C alcium Phosphates, F luoride R em oval from N a tu ra l W aters by.

W . H . M ac ln tire and J . W . H am m ond ...................................................... 160C arbon, Sodium -Lead A lloys P repared by R eduction w ith. G. L.

P u tn a m .................................................................................................................... 1138C arbon B lack -R ubber M ixtures, F locculation of P igm en t in. C . R .

P ark and P . P . M cC le llan ............................................................................... 704C arotene Iso la ted by Im proved M ethods. F . M . S chertz .................... 1073C arotene in Oranges. A. L. T ay lo r a n d P . J . W itte ............................... 110C a t a l y s t s

Aerogel. C onversion of Alcohols to Amines. K . K earby , S. S.K istler, and Sherlock Swann, J r . ............................. 1082

for E thy lene-W ater-E thano l E qu ilib rium . A. J . Paik , SherlockSwann, J r., and D . B. K eyes..................................................................... 173

Nickel, Olefin H ydrogenation by, in Presence of A rom atics. V. N .Ipatieff and B. B. C orson ............................................................................ 1039

Phosphoric Acid, in G asoline Refining. V. N . Ipatieff and B. B.C orson ................................................................................................................. 1316

Phosphoric Acid, in M ixed Polym erization of B utenes. V. N . Ip a ­tieff and R . E . S chaad .................................................................................. 596

in W ater-G as R eaction. F . G. L aup ich ler.............................................. 578C elluloid P ipe C oating. C harles F itzgerald and M . G. Johnson 294C e l l u l o s e

Cell W all S tructu re of H igher P lan ts . I. W . B ailey ........................... 40C o tto n F iber, G row th and S tructu re of. D . B. A nderson and

Thom as K e rr.................................................................................................... 48D erivatives

for A irplane Dopes. G. M . K line and C. G. M alm berg ............... 542C hem istry of. R . F . C onaw ay ................ 516X -R ay D iffraction Behavior. W. A . Sisson....................................... 530

E thers. V aria tion of Physical P roperties w ith C om position. E .J . L o ran d ............................................................................................................ 527

Ethylcelluloso Solvents, E v a lu a tio n of. T . A. K auppi and S. L.B ass...................................................................................................................... 74

M olecular W eights of, and of C ellulose D erivatives. E . O. K raem er 1200Nitrocellulose H om ogeneity an d P roperties. H . M . S p u rlin 538W ood, Purification of. F red O lsen ............................................................. 524

C entrifugal Pum ps. See Pum ps.Ceram ic Pigm ents, Less F am ilia r E lem ents in. C. J . H a rb e r t 770C ham pagne. See W ine under Beverages, Alcoholic.C hand ler C en tenary C elebration

In troduction . M . T . B o g ert................ 118M an-M ade M olecules. Thom as M idgley, J r . (J . R . Caldwell,

Correspondence, 481).................................................................................... 120C h a r t s

N om ograph for Chem ical Engineering C alculations. E . L. M c­M illen .................................................................................................................. 71

for Vapor P ressures of Organic Solvents. D . S. D av is ...................... 320for V apor Pressures of Solvents. D . H . K illeffer. (A ddendum ,

722).......... 477, 565Chem ical Engineering C ourses N eed R evision to Im prove Q uality and

Decrease Q u an tity of G radua tes . E d ito ria l........................................... 965Chem ical Engineering, N om ograph for C alculations in. E . L. M c­

M illen ....................................................................................................................... 71C h e m i c a l I n d u s t r y

A rticle on, in Fortune. Fortune Smiles. E d ito ria l.............................. 2D evelopm ent A rrested T em porarily by Econom ic and Po litica l

U ncerta in ty . A ttention! E d ito ria l...................................................... 843Econom io Progress and. D . P . M organ. (C orrespondence, 1328) 934Im portance in W orld Progress. E d ito r ia l............................................... 1M anagem ent of, B eset w ith Increasing Problem s. E d i to r ia l . ......... 365R esearch S upported by, R esu lts in Benefit to C onsum er. W itness

for Defense. E d ito ria l. (C orrection, 1118)............. ; ....................... 601Chem ical P lan ts , S team D rives for E quipm en t in. F . J . V onachen. . . 773C hem icals. Foreign T rad e in 1937. O tto W ilson ................... 482Chem icals in W arfare N o t So H orrib le as P ic tu red . E d ito r ia l ............... 366C hem istry , Review of, in 1937............................................................................ 3

1439

1440 INDUSTRIAL AND ENGINEERING CHEMISTRY VOL. 30, NO. 12

C hem ists, C reative N atu re of W ork of. T hree C ’s. E d ito ria l 1090C hem ists W anted for New G overnm ent L aboratories. E d ito ria l 1330C hlorophyll Iso la ted by Im proved M ethods. F . M . S chertz ............... 1073C hrom e G lucosate as Corrosion In h ib ito r in In d u s tria l Aqueous Sys­

tem s. D . W . H aering ......................................................................................... 1356C igaret Smoke, H ygroscopic A gents in. J . C. Forbes and H . B.

H a ag .........................................................................................................................C itric Acid In d u s try . P . A. W ells and H . T . H errick ............................C itru s F ru it. Oranges, C arotene in. A. L. T aylor an d P. J . W itte.C o a l

B itum inous, C arbonization of. E ffect of R a te of H eating andF ina l M axim um T em peratu re . W . B. W arren .................................

C arbonization, C ritical E lectrical C onductance T em pera tu re du r­ing. E rio Sinkinson and Jerom e G an z .................................................... 1419

H ydrogenation , C hem istry of. H . H . S torch (C orrec tion )...............Solvent E x traction , U ltim ate Yield of. H . G. L andau and R . S.

A sbury .......................................... . ....................................................................C oal-T ar H ydrocarbons, S yn thetic Resins from. W . H . Carm ody,

W . E . Sheehan, and H . K e lly ........................................................................Coffee, R oasted , O xidizability of. W . R . Jo h n sto n .................................... 1284Coke, T ransition of Coal to , S tudies by C onductom etric M easure­

m ents. E ric Sinkinson and Jerom e G an z ................................................... 1419C olum bium , D evelopm ents in . C. W. B alk e .............................................. 251C ondensation of S team . E ffect of T ube Position. H . T . Quigg, W .

C. M oyer, and R . L. H u n tin g to n .................................................................... 1047C ondensation of Vapors, M ixed. J . L. W allace a nd A. W . D avison.Cooling by Spray Ponds. H . E . S tid sto n e ..................................................Corncobs, D estructive D istilla tion of. T . R . M cE lhinney, B. M .

Becker, and P. B. Jaco b s .................................................................................C ornstalk A lkali L ignin, Phenols from . G. L. B ridger..........................C orrespondence...................................................................842, 1087, 1203, 1328, 1433C o r r o s i o n

of M eta l P reven ted b y T rea tm en t before Pain ting . F . N. S p e lle r .. 1152of M etal in Soap and Allied Industries. G. L. C ox ................................... 1349P a in t D u rab ility on M eta l Affected by . V. M . D a rsey ....................... 1147in R iver and H arbo r S tructu res. F e rd D ieffenbach............................ 1014of Steel Buried in Soil. W . F . R ogers........................................................ 1181of Steels, Effect of Oxygen on. F . G. F rcse ........................ .. ................ 83in W ater P reven ted by Sodium Silicates. W illiam S tericker 348in W ater System s Inh ib ited by C hrom e G lucosate. D . W . H aering 1356

C otton , Cell W all S tructu re of. I. W . B ailey ............................................C o tton F iber G row th and S tructu re . D . B. A nderson and Thom as

Iverr..........................................................................................................................Coum arone Resins. See Resins.C rushing. See G rinding.

717255110

136

296

117

245

948991

6971174

40

48

D A M M A R . See Resins.D ephlegm ator. See Colum ns under D istilla tion .Derris. Toxicological S tudies. A. M . Am brose an d H . B. H a a g 592D extro lactic Acid. See L actic Acid.D ielectric Losses in P o lar Liquids and Solids. S. O. M organ .............. 273Dienes, C onjugated , from Gas Oil. H ans Tropsch, C . L. Thom as,

G ustav Egloff, and J . C . M orre ll.................................................................. 169Diesel Fuels. See Fuels.D iisobutylphenol. See Phenol.D ishwashing, Sodium M etaphosphate in, S an ita ry Value of. R ela­

tiv e Value of F ilm Preven tion and A uxiliary Chem ical Disinfection.G. O. H all and C harles S chw artz .................................................................. 23

D i s t i l l a t i o nColum ns

B ubble-P late, Perform ance of. F ro th H eights and Pressure D ifferentials. M o tt Souders, J r ., R . L. H un ting ton , H . G.Corneil, an d F . L. E m e r t........................................................................ 86

D ephlegm ator Efficiency. H . A. W ebber a nd G. L. B ridger 315M uitip le-D raw , P etro leum F rac tio n a tio n in. W . L. N elson and

C. H . R o lan d ............................................................................................... 730Pack ing M aterials for 5.1-Cm. F rac tiona ting C olum n. M . R .

Fenske, S. Lawroski, and C. O. T ongberg ....................................... 297P erfo ra ted-P la te , C om m ercial Perform ance of. R . C. Gunness

and J . G. B ak er.......................................................................................... 1394of Corncobs D estructively . E ffect of T em pera tu re on Y ields of

P roducts . T . R . M cE lhinney, B. M . Becker, and P . B. J a c o b s . . . 697M olecular. N a tu ra l V itam in D Exam ined. K . C. D . H ickm an

and E . LeB. G r a y . . ....................................................................................... 796Separation Processes

A nalysis of U n it Sections. M erle R andall and B ruce L o n g tin .. . . 11SS C orrela tion betw een y vs. x and M olal H ea t C on ten t vs. M ole

Frac tion D iagram s. M erle R an d a ll and Bruce L ongtin 1311G eneral M ethods of Analysis. M erle R andall an d B ruce Long­

t i n ........................................................................................................................ 1063D istillery B y-Products. L. C . Cooley. (H . O. C hu te ; Cooley,

Correspondence, 1203)........................................................................... 615D octor Sweetening, F ac to rs in . Influence on Inh ib ito r Susceptib ility

of C racked Gasoline. C . D . Low ry, J r ., C . G. D ryer, CharlesW irth , I I I , and R. E . S u th e rlan d ................................................. 1275

D olom ite, A vailable M agnesium from , for Phosphatic Fertilizers. W.H . M ac ln tire , L. J . H ard in , and F . D . O ldham ................................... 651

D rug and Food B ill, N eed for E n ac tm en t of. E d ito ria l........................... 365D rug and Food B ill Passed. E d ito ria l......................................................... 723D rum D rying E qu ipm en t. D . J . V an M arie .................................... 1006D r y i n g

M achinery for. F red K ershaw ........................................................................ 1115Sym posium on A ir C onditioning and

A ir and Com m ercial Gases D ried w ith A ctivated A lum ina. R .B. D e rr .......... 3S4

D ry ing M aterials in T rays. E vapora tion of Surface M oisture.C . B. Shepherd, C . H adlock, and R . C. B rew er............................ 3SS

E qu ipm en tAeroform D ryer. A. O. H u rx th a l...................................................... 1004D rum D rying. D . J . Van M arie ....................................................... 1006F ilte r D rying . D . F . I rv in .................................................................. 1002R o ta ry D ryers. B . A. S m ith ............................................................... 993R o ta ry S team -T ube D ryer. C . E . B ill ............................................ 997R o ta ry V acuum D rying. L. H . B ailey ............................................ 100SR oto-L ouvre D ryer. J . L. E rism an .................................................. 996Spray D rying. W . S. B ow en.............................................................. 1001V ertical T urbodryers. A. W eisselberg............................ 999

E v apora tion R ate from Free W ater Surface b y P erpend icu lar AirS tream . M . C. M olstad , P . Farevaag, and J . A. F a rre ll 1131

E vap o ra tio n R ates of M oisture from W et M ateria l and FreeW a te r Surface. A. E . Stacey, J r ....................................................... 13S5

F undam en ta l Principles. E . R . G illilan d ............................................ 506Solids, Com m ercial, D rying of. R . C. E rn st, D . B. A rdern, O.

K . Schmied, and F . M . T ille r ................................................................ 1119Spray D rying. B. B. Fogler and R . V. K lein schm id t................... 1372V acuum D rying. R . C. E rn st, J . W . R idgw ay, and F. M . T ille r . 1122 W ater E vap o ra tio n in to Q uiet Air from O ne-Foot D iam eter Sur­

face. B. F . Sharpley and L. M . K . B o elte r...................................... 1125DQhring’s R ule, A pplications of. E . J . R o eh l............................................... 1320Dyestuffs, Synthetic , P e rk in ’s D iscovery of, C elebrated in 1938.

Centenaries in 1938. E d ito ria l..................................................................... 123

E D IT O R IA L SA dult E d u ca tio n ................................................................................................... 488A nother L ick ing ................................................................................................... 1330A tte n tio n !............................................................................................................... 843Blind D a te .............................................................................................................. 243B re v ity ..................................................................................................................... 366C entenaries in 1938............................................................................................. 123C haracteris tics of M any G uides.................................................................... 124Chem ical E ngineering E d u c a tio n .................................................................. 965Chem icals in W arfa re ............................................................................................ 366C hem istry in M edicine...................................................................................... 1089Classify O dors....................................................................................................... 2Consum ers' P ro tec tio n ...................................................................................... 725C ru sad er.................................................................................................................. 963D ic ta to r w ise ................................................................................................ 244Em ployees’ E d itio n ............................................................................................. 487E ncouraging W o rd .............................................................................................. 1090Experience Teaches............................................................................................. 123F ind the In v e n to r ................................................................................................ 601Food and D rug B ill................................................................................................ 365Fortune Sm iles................. 2G reeting from O ur P res id en t.......................................................................... 1Ideal Research M en ............................................................................................ 725Is Science In te rn a tio n a l? .................................................................................. 1329Job M ak ing ............................................................................................................ 124Large O rder............................................................................................................ 243M anagem en t.......................................................................................................... 365M en W an ted ......................................................................................................... 1330M icrochem ical D iv ision .................................................................................... 1090M irro r.......................................................................................................................... 366N y lo n ....................................................................................................................... 1205O ur Food and D rugs .......................................................................................... 723P a s te u r ..................................................................................................................... 1329P reven ting S tream P o llu tio n .......................................................................... 844Reciprocal T rade T rea tie s ................................................................................ 844R efreshm en t................................................................................ 724Refugee S c ien tis ts ................................................................................................ 964R ep u ta tio n M ain ta in ed ..................................................................................... 1206Rockefeller F oundation R ep o r t..................................................................... 724R ole of Pure Science.............................................................................................. 966Science, Politics, an d R elig ion ........................................................................ 124Spare O ur P res id en t........................................................................................... 487S ta rt in L ife........................................................................................................... 966Suppressed P a te n ts ............................................................................................. 965T aken from th e N u t Bowl. (Correction, 1330)........................................ 1205T hree C ’s ................................................................................................................. 1090U nem ploym en t..................................................................................................... 843V alue of L ite ra tu re .............................................................................................. 602V isiting F irem en ................................................................................................... 964W itness for Defense. (C orrection, 1118)..................................................... 601

E l e m e n t s , L e s s F a m i l i a r , S y m p o s i u m o nB eryllium , D evelopm ents in. C. B. Saw yer and B. R . K je llg re n .. . 501in Ceram ic P igm ents. C . J . H a rb e r t........................................................... 770Econom ics of. II . C. M eyer. (C orrection, 562)..................................... 431Indium . Occurrence, R ecovery, and Uses. R . E . Law rence and

L. R. W estb rook .............................................................................................. 611T an ta lu m and Colum bium . C . W . B alk e ................................................ 251

E m p l o y e e sChem ical, Safety F u n d am en ta ls for. G. M . B riggs............................ 641C orporations G iving Space to Problem s of, in A nnual R eports.

Em ployees’ E d ition . E d ito ria l................................................... 487In v estm en t in . M u st Be Considered in Seeking C ause for Reces­

sions. Job M aking. E d ito r ia l................................................... 124R elations w ith Em ployer, N eed for Im provem en t in . Experience

Teaches. E d ito ria l........................................................................................ 123E m p l o y m e n t

A pplicants for, A ppreciate E ncourag ing 'W ord . E d i to r ia l . .............. 1090P erm an en t Lack of, Increasing. U nem ploym ent. E d i t o r i a l . . . . . 843Qualities N eeded for Successful S ta r t in. S ta r t in Life. E d ito ria l. 966

E ngine. See Fuels.E nzym e A ctiv ity in Frozen V egetables. A rtichoke H earts . M . A.

Joslyn , C. L . Bedford, and G. L. M a rsh .................................................... 1068E sters , Poly-, X -R ay Investiga tion of. C . S. F u l l e r . . . ............................. 472E th an e -n -H ep tan e System , L iquid-V apor Phase E qu ilib rium R ela­

tions in. W . B. K a y ............................................................................................. 459E th an o l. See E th y l under Alcohols.E th y l Alcohol. See E th y l under Alcohols.E thylcellulose. See Cellulose.E t h y l e n e

D ehydropolym erization of. V. I. K om arew sky and N . B a l a i . . . . . 1051E quilib rium w ith W ater and E th an o l, C ata ly s ts for, A. J . Paik ,

Sherlock Sw ann, J r ., an d D . B. K eyes....................................................... 173Polym erization R a te . F . R . R ussell and H . C. H o tte l ...................... 1S3

E th y len e Glycol D in itra te and N itroglycerin . V apor P ressures ofB inary Solutions. J . D . B ran d n er.................................................................. 6S1

E th y len e Im ine T oxicity . J . P . D anehy an d D . J . P f lau m ..................... 778Explosive L im its of P ropane-A ir^N itrogen D ioxide M ixtures. E . B.

H odge....................................................................................................................... 1390Explosives. N itroglycerin an d E th y len e G lycol D in itra te . Vapor

Pressures of B inary Solutions. J . D . B ran d n er......................................... 681E x trac tio n , Solvent, of Diesel Fuels. C . G. D ryer, J . A. Chenicek,

G ustav Egloff, and J . C . M o rre ll....................................................................... 813

F E R M E N T A T IO N B utyl-A cetonic, of Arabinose an d O ther Sugars. L . A. U nderkofler

and J . E . H un te r, J r ...................................................................................... 4S0Gluconic Acid P roduction on P ilo t-P la n t Scale by Subm erged M old

G row th. E . A. G astrock, N . Porges, P . A. W ells, and A. J .M oyer................................................................................................................... 782

DECEMBER, 1938 INDUSTRIAL AND ENGINEERING CHEMISTRY 1441

of Glucose to d-L actic Acid. G. E . W ard, L. B. Lockwood, B.T abenkin , and P. A. W ells......................................................................... 1233

of W ood Sugar to P roduce B uty l Alcohol. N. 0 . S jolander, A. F .Langlykke, and W. H . P e te rso n ............................................................... 1251

F e r t i l i z e r s

Chem ical R eactions in M ixtures. R eactions of Calcined P hosphate w ith Am m onium Sulfate and Superphosphate. K. C. Beeson andK . D. Jaco b .......................................................................................................... 304

M ixtures, F ac to rs Affecting G ranu lation of. J . O. H ardesty andW . H . R oss........................................................................................................... 668

M onocalcium C hlorophosphate, R eaction P ro d u ct of Calcium Chlo­ride and Phosphoric Acid. E . J . Fox and K . G. C la rk ................. 701

P hosphate D eposits of W estern U nited S tates. H . A. C u rtis 973Phosphatic , D olom ite as New Source of A vailable M agnesium for.

W . H . M ac ln tire , L. J . H ardin , and F . D . O ldham ............................. 651(See also P o tash Sym posium )

F iberboard , C orrugated , Sodium Silicate A dhesive Bonds in. O. E .Schupp, J r., and E . R . B o ile r............................................................................ 603

F i l t r a t i o nAccuracy of P red iction of P la n t O peration from T est D a ta . E . L.

M cM illen and H . A. W ebber..................................................................... 708Aids, A ction of. P . C. C a rm an ................................................................... 1163A ppara tus. P la te and F ram e F ilter Press. P h ilip K riegel 1211A pparatus, Screens Used in. A. E . R eed ................................................ 1369F ilte r D rying. D . F . I rv in ............................................................................ 1002

F ire Extinguishers. M ethy l B rom ide as D epressan t of F lam m ableL im its of M ethane. J . C . Olsen and A. H . G rad d is ........................... 308

F ire F igh ting w ithout Chem ical Knowledge M ay Involve Danger.Visiting Firem en. E d ito r ia l .......................................................................... 964

F ish Oils. See Oils.F lavor, Need for C lassification of. Classify Odors. E d ito r ia l 2Flooring. M astic T ile. C arle ton E llis ....................................................... 20F low m eters for Gas, D ischarge R ates from. J . C. W hitw e ll.............. 1157Fluorides in W ater. Rem oval by C alcium P hosphates. W . H .

M ac ln tire and J . W . H am m ond................................................................... 160Fluorides in W ater. R em oval by Tricalcium P hosphate. H ow ard

A dler, George Klein, and F . K . L indsay ....................................................... 163F luorine in W ater, R em oval of. D evelopm ent in Use of T ricalcium

P hosphate. A. S. B ehrm an and II . G ustafson ...................................... 1011F ly Ash Brick. See Brick.Foam ing. See B oiler under W ater.Food and D rug Bill, Need for E nac tm en t of. E d ito r ia l........................ 365Food and D rug Bill Passed. E d ito ria l............................................ ............. 723Forste rite R efractories in America. F . A. H arvey and R. E . B ir c h . . . 27F o rste rite R efractories in Europe. V. M . G oldschm idt. (Correc­

tion , 436 )........................................................................................................... 32Fortune P resents A rticle on Chem ical In d u s try . Fortune Smiles.

E d ito ria l.................................................................................................................. 2F u e l , M o t o r

for Diesel Engines, Solvent E x traction of. C . G. D ryer, J . A.Chenicek, G ustav Egloff, and J . C . M orre ll......................................... 813

in Europe, Econom y of. G ustav Egloff ............. 1091G asoline-Alcohol Blends in In te rn a l C om bustion Engines. L. C.

L ichty and C. W. P h e lp s ............................................................................. 222Soviet T rucks to Use D istilled W ood.......................................................... 1384

Fungicide. Pentachlorophenol Properties and Uses. T . S. Carsw elland H . K . N ason ................................................................................................. 622

F u rfu ra l, A sphaltic B itum en Affinity w ith H ydrophilic AggregateIm proved by . II . F . W in te rk o rn ............................................................. 1362

F urnace for Re-form ing N ap h th a and G asoline by D ouble-E nd F ir­in g ................................................................................................................... 398

G A S E SAbsorption, Log M ean Difference. T . N . D a lto n ............................... 1081B u tane-P en tane M ixtures. C om pressibility below One A tm osphere.

F . W . Jessen and J . H . L igh tfoo t ............................................ 312Com m ercial, D ried with A ctivated A lum ina. R . B. D e rr................ 384F low m eters, D ischarge R ates from. J . C. W hitw ell........................... 1157W aste, Sulfur Dioxide Recovery from . E quilib rium V apor P res­

sures over Sulfite-Bisulfite Solutions. H . F . Johnstone, H. J.R ead, and H . C. B lankm eyer.......................... 101

W ater-G as R eaction , C ataly tic. F . G. L aup ich ler.............................. 578G a s o l i n e # .

Blends with Alcohol in In te rn a l C om bustion Engines. L. C. L ichtyand C. W. P helps • 222

C racked. In h ib ito r Susceptibility Affected b y D octor Sweetening.C. D . Lowry, J r ., C. G. D ryer, C harles W irth , I I I , and R . E .S u th e rlan d - 127 5

Phosphoric Acid C ata ly s t for Refining of. V. N . Ipa tie ff and B. B.C orson .................................. 1316

Re-form ing, D ouble-E nd-F ired F urnace fo r ............................................. 398G l a s s

Fiber. M echanical D evelopm ent. J . H . P lum m er............................ /26P o tash in M anufactu re of. A. N. F in n . ........................................... 891Suspensions, Agglom eration and Viscosity in . G. B roughton and

C. S. W indebank ...............................................................- ............ 407Gluconic Acid P roduction on P ilo t-P lan t Scale. E . A. G astrock, N.

Porges, P . A. W ells, and A. J . M o y e r ........................................................ 782Glucose, d-L actic Acid from Ferm en ta tion of. G. E . W ard, L. B.

Lockwood, B. T abenkin , and P. A. W ells............... .̂................................ 1233G ram , S tarch from . J . L. Sarin and M . H . Q ureshi................................ 1318Greases. See L ubricants.G r i n d i n g

Ball, R od, an d T ube M ills. W . H . W ith ing ton .................................... 897D evelopm ents in. L. T . W ork ..................................................................... 130Pebble and B all M ills, M ultip le Use of. E . M . U nderw ood., 905Pulverizers w ith A ir Separation and A ir D rying. V . A. K o re n .. . 909

H A R B O R S tructures, C orrosion and E rosion in . F erd D ie ffenbach .. 1014H ardw ood. See W ood.H e a t T r a n s f e r .

Coefficients for C ondensation of M ixed V apors. J . L. W allace andA. W. D av ison ............................................................ .. - .......................... 948

Coefficients in Staggered T ube Banks. C . C. W ind ing...................... 94 -E qu ipm en t, T ests for. R . C. Gunness and J . G. B ak er..................... 373E xchangers . _

for Chem ical Process A pplications, K . B. M ille tt.......................... 367M ultipass, C alculations for. H ow ard T en B roeck - . 1041M ultipass, M ean T em pera tu re Difference C orrection in. F. K.

F isch er........................................................................................................... 377Log M ean Difference. T . N . D a lto n ......................................................... 1081

from Solid Surface to Boiling Liquids. F . H . R hodes and C. H .B ridges.................... 1401

H elium In d u stry , Beginnings of. H. P . C ady. (G. A. B urrell; C ady,Correspondence, 1433)...................................................................................... 845

H elium Production a t A m arillo. C. W . Seibel............................................... 848n -H ep ta n e -E th an e System , L iquid-V apor Phase E quilib rium R ela­

tions in. W. B. K a y ............................................................................................. 459H erty , C harles Holmes, Loss to C hem istry in D eath of. E d ito r ia l.. 963 Hexane, T herm al D ecom position of, a t H igh Pressures. J . N . Pearce

and J . W. N ew som e............................................................................................... 588H y d r o c a r b o n s

Arom atic, from D ehydropolym erization of E thy lene. V. I. Ko-m arew sky and N. B ala i................................................................................ 1051

C oal-Tar, S yn thetic Resins from . W . H . C arm ody, W . E . Shee­han, and H . K elly .............................................................................................. 245

F ractions, H igher, A pproxim ate M olecular W eights of. F . A.L u cy ..................................................................................................................... 959

N atural-G as, Syntheses from . n -P en tane N itra tion . H . B. H assand J . A. P a tte rso n ........................................................................................ 67

Oils for InsulationInfluence of G aseous E lec tric D ischarge on. L. J . B e rb e r ic h .. . 280O xidation C haracteristics of. J . C. B alsbaugh, R . G. Larsen, and

J . L. O ncley.................................................................................................. 287Olefin H ydrogenation Selectively by Nickel C ata ly s t in Presence of

A rom atics. V. N . Ipatieff and B. B. C orson ..................................... 1039from Petroleum , Sym posium on U tilization of. See H ydrocarbons

under Petroleum .Phase E quilibrium in System s of. B. H . Sage and W . N . L a c e y ..

Isobutane, T herm odynam ic Properties o f............................................. 673M ethane, E quilibrium C onstan ts fo r...................................................... 1296

Solutions. Viscosity of L iquid and Gaseous P ropane. B. II . Sageand W . N . L acey ......................................................................................... . 829

Therm odynam ic Properties. W . C. E d m iste r....................................... 352Therm odynam ics in Research on. G. R. Schultze; C. L. Thom as,

G ustav Egloff, and J . C . M orrell (Correspondence and Correc­tion) ...................................................................... 842

(See also O rganic C om pounds, Petro leum and kind o f hydrocarbon) H ydrochloric Acid, Gaseous, A bsorption of, w ith T an ta lu m E q u ip ­

m ent. F . L. H u n te r . .....................; • • • ' • . ................................................ 1214H ydrogen-Ion C oncentration . Benzoic Acid and Inorganic Salts,

E ffect of pH on A ntiseptic and B actericidal A ction of. R . H.Goshorn, E . F . Degering, and P. A. T e tr a u lt ............................................... 646

H ydrogen-Ion C oncentration , C ake B a tte r S tab ility Affected byV ariation in. E m ily G rew e............................................................................... 719

H ydrogen P roduction on Large Scale. D av id B row nlie ................................ 1139

IN D E N E Resins. See Resins.Indium . Occurrence, Recovery, an d Uses. R . E . Law rence and L.

R. W estbrook ............................................................................................................ 611Inositol, Inactive , from S tarch F ac to ry S teep W ater. E dw ard B ar­

tow and W. W. W alker......................................................................................... 300Insecticides. D erris, Toxicological S tudies of. A. M . Am brose and

H . B. H a ag ................................................................................................................ 592Insecticides. P y re th ru m Flow ers from K enya, a B ette r Source. V.

A. Beckley, C. B. G nadinger, and F ran k Ire la n d .................................. 835I n s u l a t i o n

E lectrical, Purified^ R ubber for. A. R . K em p (C orrec tion).............. 314M aterials, Sym posium on

D ielectric Losses in Po lar Liquids and Solids. S. O. M o rg an 273H ydrocarbon Oils, Influence of Gaseous E lec tric D ischarge on.

L. J . B erberich ............................................................................................ 280In troduction . K. S. W y a t t ....................................................................... 272Oil Oxidation, E lectrical and C hem ical S tudies of. J . C. B als­

baugh, R . G. Larsen, and J . L. O ncley............................................... 287Ironw orks of Pennsy lvan ia in E a rly D ays. D urham Furnaces. R .

D . B illinger........................................................................................................ 428Isobutane. Therm odynam ic P roperties. B. H . Sage and W . N .

Lacey ........................................................................................................................ 673

K A O L IN Suspensions, A gglom eration an d V iscosity in. G . Brough­to n and C. S. W indebank ................................................................................ 407

LA C Q U ER . N itrocellulose Solvents, S treng th of. A. K . D oolittle . C om parative T oluene D ilu tion R atio s of P u re Solvents and Solvent-

C oupler M ix tu re s . ........................................................ 189C om parative Viscosities of N itrocellulose Solutions in Pure Solvents

and Solvent-Coupler M ix tu res ...................... 195Phase D iagram M ethod of S olvent E v a lu a tio n ...................................... 199

d-L actic Acid from Glucose F erm en ta tion . G . E . W ard , L . B . Lock­wood, B. T abenk in , and P. A. W ells........................................................... 1233

Lactose in W hey, Separated from Soluble P ro teins b y A lcohol E x trac ­tion . A braham L eviton and A lan L eigh ton ........................................... 1305

Latex . See R ubber.Lead-Sodium Alloys by C arbon R eduction . G. L. P u tn a m .................... 1138Legislation O ften Inconsistent w ith Scientific Know ledge. T aken

from th e N u t Bowl. E d ito ria l. (Correction, 1330)......................... 1205Lignin, A lkali, from C ornstalks as Source of Phenols. G. L. B rid g e r.. 1174Linseed Oil. See Oils.L ipase A ctiv ity a t Low T em peratu res. A. K . B alls a nd I. W . T ucker. 415 L i q u i d s

A ppara tus for C ontro lling Level of. R . E . H ersh, E . M . F ry , andM . R . F enske .................................................... 363

Boiling, H ea t T ransfer from Solid Surface to . F . H . Rhodes and C.H . B rid g es . ........... . ......... ....................................................................... 1401

Flow of, th rough P ipe-L ine Orifice. O. L. K ow alke ....................... 216Separato rs for, by M echanical M eans. G . M . K irk p a trick ............. 1207

L iteratu re . N eed for B revity in Scientific W riting. E d ito ria l 366L iteratu re , Scientific, Value of, M u st Be C on tinua lly Stressed. E d i­

to r ia l.......................................................................................................... 602L ith ium , Econom ics of. H . C. M eyer......(C orrection, 562)................. 431Log M ean Difference- T . N . D a lto n .............................................................. 1081L u b r i c a n t s

A lum inum S teara te Greases. F . J . L ica ta ................................................... 550fo r H vdrau lic B rakes. R . R . F u lto n . (C orrection, 523).............. 422P etro leum L ubrican t F rac tion , E x tra c t P o rtion of. B . J . M air,

C . B. W illingham , an d A. J . S treiff..................................................... 1256

M A G N E S IU M , Available, New’ Source of, for Phosphatic Fertilizers.W . H . M ac ln tire , L. J . H ard in , and F . D . O ldham .................. 651

M annitoL See Alcohols.

1442 INDUSTRIAL AND ENGINEERING CHEMISTRY VOL. 30, NO. 12M astic. »Sec Resins.M edal Award, Perk in . F . J . T o n e .................................................................. 231M edicine. C hem ist’s P a r t in B a ttle again st D isease. E d i to r ia l . . . . 1089M e t a l

Corrosion in Soap and A llied Industries . G. L. C ox ............................. 1349P a in t D u rab ility on, Affected by Corrosion. V. M . D a rsey 1147Surface T rea tm en t of, before P a in ting . F . N . Spelle r....................... 1152

M ethacry lic E sters , M ethy l. Po lym erization in Organic Solvents.D . E . S tra in ........................................................................................................... 345

M e t h a n e-B u tane System , G as-L iquid E q u ilib ria for. G. W . N e d e rb ra g t.. . 587E quilib rium C onstan ts for, in H ydrocarbon System s. B. H . Sage

and W . N . L acey ............................................................................................. 1296F lam m able L im its of, W hen D epressed by M ethy l Brom ide. J . C.

Olsen and A. H . G rad d is ................................................................................. 308M ethanol. See M ethy l under Alcohols.M ethy l B rom ide, M ethane F lam m ab ility D epressed by . J . C. Olsen

a n d A. H . G rad d is ............................................................ 308M icrochem istry D ivision A pproved. E d ito r ia l.......................................... 1090M ilk , Irrad ia ted . V itam in D Po tency as F unction of E nergy In p u t.

B rian O’Brien, H . D . M cEw en, and K enneth M orgareidge.................. 839M ilk Irrad iatio n . F ac to rs Affecting A ntirach itic R esponse. H . H .

Beck, H . C. Jackson, and K . G. W eckel....................................................... 632M illw ork. See Wood.M i x e r s

Perform ance of. R . C. G unness and J . G. B ak e r.................................... 497in Process Industries. G ordon M acL ean and E . J . L yons................... 489Propeller-T ype. E . S. B isse ll. ................................................................ 493

M olecular D istilla tion . See D istillation .M onocalcium C hlorophosphate. See Calcium C hlorophosphate.M otor Fuel. See Fuel.

N A P H T H A Re-form ing, D ouble-E nd-F ired Furnace fo r...................... 398N aph thalene , L iquid, C om pressibility of. F . R . R ussell an d H . C.

H o tte l....................................................................................................................... 343N aph thas , H ydrocarbons in. C. O. Tongberg, M . R . Fenske, and W.

J . Sw eeney...................................... 166N ickel C ata ly s t, Olefin H ydrogenation by , in Presence of A rom atics.

V. N . Ipatieff and B . B. C orson.................................................................... 1039N i t r i c A c i d

Bagasse P ulped w ith Alcoholic Solutions of. P u lp Yields andC haracteris tics. S. I. A ronovsky an d D . F . J . L y n ch ....................... 790

as P u lp ing A gent. Analysis of Used-Acid P u lp ing L iquors. E . R..W hittem ore, J . D . Reid, and D . F . J . L y n cn ...................................... 1192

-S u lfu ric Acid M ix tures, H eats of D ilu tion of. F . I I . Rhodes andC. C. N elson .......................................................................................................... 648

N i t r o c e l l u l o s eH om ogeneity and P roperties of. H . M . S p u rlin ....................................... 538Solvent B alance Affected by N onvolatile M ateria l. J . B . Dorsch

and J . K . S te w a rt ; ........... 325Solvents, S treng th of. A. K . D oolittle

C om parative Toluene D ilu tion R atio s of P u re Solvents and Sol­vent-C oupler M ix tu res .......................................... ; • • • * . .......................... *$9

C om parative Viscosities of N itrocellulose Solutions in P u re Sol­ven ts and Solvent-C oupler M ix tu res ...................................................... 195

Phase D iagram M ethod of Solvent E v a lu a tio n ...................................... 199N itrogen D ioxide, Explosive L im its of M ixtures of P ropane , A ir, and .

E . B. H odge ....................................................................................................... 1390N itroglycerin and E thy lene Glycol D in itra te . V apor P ressures of

B inary Solutions. J . D . B ran d n er............................................................. 681N om ograph. See C harts.Nylon, S yn thetic Organio T ex tile F iber. E d ito r ia l.................................. 1205

n -O C T A N E , T herm al Decom position of. R . F . M arschner................ 554Odors, N eed for C lassification of. E d ito r ia l................................................ 2O i l s

D ryingColloid C hem istry of. L aszlo Auer. (T . F . B radley; Auer,

Correspondence, 1087)........................................................ 406Film s of Oil Varnishes, Swelling of, in W ater. J . Rinse, W . H .

G . W iebols, and H . V. T a k e s ......................................................... . 1043Polym eric F u n c tio n a lity w ith R elation to A ddition Polym eriza­

tion of D ry ing Oils. T . F . B rad ley ................................ 689Fish , N a tu ra l V itam in D in , E xam ined b y M olecular D istilla tion .

K . C. D . H ickm an and E . LeB. G ra y ....................................... 796Linseed, D rying in P a in t. D . G. N icholson and C. E . H olley, J r.

C oncen tration of D rie rs ............................................................................... 114E ffect of A rtificial Visible L ig h t ...................................... 563

Linseed F ilm s, Influence of Phenolic R esins on. V. II . T urk ing ton ,R . C. Shuey, a n d L. S hech ter........................................ 9S4

O iticica an d T ung. C hanges in Physical and Chem ical Properties during H ea t B odying. S. O. Sorenson, C. J . Schum ann, J . H .Schum ann, and Joseph M attie llo ............................................................. 211

T ung, D erm atitic P roperties of. M . W . Sw aney .................................. 514O iticica Oil. See Oils.O l e f i n s

H ydrogenation Selectively by N ickel C ata ly s t in Presence of Aro-raatics. V. N . Ipatieff and B. B. C orson .................................. 1039

E s te r Synthesis from O rganic Acids and. T . W . E vans, Iv. R .E d lu n d , an d M . D . T a y lo r.............................................................................. 55

from G as Oil. H ans Tropsch, C. L . Thom as, G ustav Egloff, andJ. C . M o rre ll..................................................................................................... 169

Lower, Polym ers of. P robab le S tructu res. A. W ach te r.................. 822R eaction w ith Sulfur Dioxide. R . D . Snow and F . E . F r e y ................ 176

Olivine R efractories in Am erica. F . A. H arvey and R . E . B irc h .. . . 27O livine R efractories in E urope. V. M . G oldschm idt. (Correction,

436 )........................................................................................................................... 32O ranges. See C itru s F ru it.O rganic C hem istry , Rockefeller F oundation R eport S tresses Need

for R esearch in . E d ito r ia l.............................................................................. 724O r g a n i c C o m p o u n d s

Acids, E s te r Synthesis from Olefins and. T . W . E vans, K . R . E d ­lund , and M . D . T a y lo r............................................................................... 55

O rganolites. Base-Exchange M aterials . H a rry B u rre ll................... 358Solvents, C h art for V apor Pressures of. D . S. D av is......................... 320Solvents, M ethy l M ethac ry la te Polym erization in . D . E . S tr a in . . . 345Vapors, Specific H eats of. P a u l Fugassi and C. E . R udy , J r 1029(See also H ydrocarbons)

Organolites. See O rganic C om pounds.

P A C K IN G M aterial. See C olum ns under D istillation.P a i n t _

Linseed Oil, D ry ing of. D . G. N icholson and C. E . H olley, Jr.C oncen tration of D rie rs ................................................................................ 114E ffect of A rtificial Visible L ig h t................................................................ 563

on M etal, D u rab ility of, Affected by Corrosion. V. M . D arsey . . . . 1147M eta l Surface T rea tm e n t before P a in ting . F . N. Spelle r................. 1152M ethy l M ethac ry la te Polym erization in O rganic Solvents. D . E .

S tra in ....................................................................................................................... 345R esin C oatings, Synthetic , F ilm C o n tinu ity of. E ffect of Com posi­

tio n and M olecular W eight on M inim um C oating W eights for T herm oplastic R esin Film s. G. H . Young, G. W . G crhard t, W.K . Schneider, and G. W . Seagren ............................................................. 685

Resins, N atu ra l. Solubilities in Solvents an d W axes. C. L. M an-te ll and R . W . A llan ...................................................................................... 262

Solvent B alance Affected by N onvolatile M aterial. J . B. D orschan d J . K . S te w a rt........................................................................................... 325

System s, Perm eability R elated to M oisture and D u rab ility of. W.W . K itte lb e rg e r............................................................................................... 328

T w o-C oat System s. P hysical S tudy . A. E . Jacobsen ........................ 660U rea-Form aldehyde F ilm -F orm ing Com positions. T . S. Ilod-

gins and A. G. H ovey .................................................................................... 1021on W oods T rea ted w ith T erm ite R epellents. M erle R an d a ll and

T . C. D oody ...................................................................................................... 444(See also D ry ing under Oils, and Lacquers, Shellac, and V arnish)

P ap er In d u s try in Sou thern U. S. D . II . K illeffer...................................... 1110Paraffin N itra tion , R eaction M echanism for. R . F . M cC Ieary with

E . F . D egering ...................................................................................................... 64Paraffin W axes. Solubility in P etro leum Fractions. A. Berne-Alien,

J r., and L. T . W ork. . ....................................................................................... 806P artic le Size. Screens in Process Industries . A. E . R eed .................... 1369P as teu r In s titu te , F iftie th A nniversary of. E d ito r ia l ............................. 1329P a t e n t s

A m erican P ractice and Procedure, Sym posiumLaw and P ractice of Foreign C ountries. T . H . W e s t. '. .................. 1424N eeds of P a te n t System . D . G. H ay n es ............................................. 1430Presen t P a te n t System . F . E . B arrow s.............................................. 1420

Com pulsory Licensing of, Proposed in B ill before Congress. D icta-torw ise. E d ito ria l............................................................................................. 244

Suppression of, In form ation Sought on Exam ples of. E d i to r ia l . . . 965P ea t, New Jersey . M ethod for D ebasing. L. N . M arkw ood 1199Pebble M ill. See G rinding.Pentachlorophenol. Sec Phenol.Pen tane-B u tane M ixture . C om pressibility below One A tm osphere.

F . W . Jessen and J . H . L igh tfoo t................................................................. 312n -P cn tane N itra tion . H . B. H ass and J . A. P a tte rso n ........................... 67P erk in M edal Aw ard. Q uest for H ard M aterials . F . J. T o n e 231Perkin , W illiam H enry, C en tenary C elebrated in 1938. E d ito ria l. . 123P e t r o l e u m

D istilla tion in M ultip le-D raw Colum ns. W . L. N elson and C. H.R o la n d ............................................................ 730

Em ulsions, Viscosity of. L. T . M onson ................................................... 1287Fractions, Paraffin W ax Solubility in. A. Berne-Allen, J r., and

L. T . W o rk ................................................................ 806H ydrocarbons, Sym posium on U tiliza tion of

E s te r Synthesis from Olefins and Organic Acids. T . W . E vans,K . R . E d lund , and M . D . T a y lo r ........................................................ 55

E th y len e Polym erization R ate . F . R . R ussell and H . C. H o tte l. 183 E thy lene-W ater-E thano l E qu ilib rium , C a ta ly s ts for. A. J .

P a ik , Sherlock Sw ann, J r ., and D . B. K e y e s . . .............................. 173H ydrocarbons in Virgin N aph thas . C . 0 . Tongberg, M . R.

Fenske, and W. J . S w een ey .. . ........................................................... 166Olefin R eaction w ith Sulfur Dioxide. R . D . Snow and F . E .

F re y .......................................................................... . .................................... 176Olefins and C onjugated D ienes from G as Oil. H ans Tropsch,

C. L. Thom as, G ustav Egloff, and J . C. M o rre ll. ... 169Paraffin H ydrocarbons, R eaction M echanism for N itra tio n of.

R . F . M cC Ieary w ith E . F . D egering ................................................. 64n -P cn tane N itra tion . H . B. H ass and J . A. P a tte rso n ................. 67Propylene Polym erization by D ilu te Phosphoric Acid. L. A.

M onroe and E . R . G illiland v . ......................... 58In d u stry , Chem ical T rends in. P . Iv. F ro lich .................... 916M id-continent, E x tra c t Portion of L ubrican t F rac tion from. B. J .

M air, C . B. W illingham , and A. J . S tre iff ........................................... 1256T erpenes A utoxidized in Petro leum Solvents. J . N . B org lin 639(See also A sphalt, D is tilla tion , Gasoline, H ydrocarbons, and Lu­

bricants)P h e n o l

from C ornstalk A lkali L ignin. G. L. B ridger.......................... 1174D iisobuty l-. Synthesis, S tructu re , P roperties, an d D erivatives.

J . B . N ied erl . 1269Indene-C oum arone Resins M odified by. Joseph R ivk in an d W . E .

Sheehan ..................................................................................................... 1228Pentachloro-. P roperties and Uses. T . S. C arsw ell and H . K .

N ason ....................................................................................... '.......................... 622Resins. See Resins.

Phosphate, Calcined, R eactions of, w ith A m m onium Sulfate andSuperphosphate. Iv. C. Beeson and K . D . Jaco b s ............................... 304

P hosphate D eposits of W estern U . S. I I . A. C u r tis ................................ 973P h o s p h o r i c A c i d

as C ata ly s t in M ixed Polym erization of B utenes. V. N . Ipatieffand R . E . S c h a a d . .................................................... 596

Gasoline Refined w ith, as C ata ly s t. V. N . Ipatieff an d B. B.C orson . 1316

M onocalcium C hlorophosphate from R eaction of Calcium Chlorideand. E . J . Fox and Iv. G. C la rk ............................................................. 701

Propylene Polym erization by . L. A. M onroe and E . R . G illi­la n d ...................................... 58

Phosphorus, D evelopm ents in. D . H . K illeffer.......................................... 967Pine. See Wood.P i p e

C oatings, E xperim ents on. Charles F itzgerald and M . G. Jo h n ­so n ................................. • • •• • . ............................................................................. 294

Corrosion of, B uried in Soil. W . F . R ogers ............................................ 1181Orifice of P ipe Line, L iquid Flow th rough . O. L. K ow alke 216Sulfur as C onstruction M ate ria l for. Isaac B encow itz ...................... 759

P l a n t M a t e r i a lChlorophyll, C arotene, and X an thophy ll Iso la ted from , by Im ­

proved M ethods. F . M . S chertz ....... ........ ........................................... 1073Higher, C ell W all S tructu re of. I. W . B ailey ........................................ 40P o tash in M etabolism of. G. N . H offer................................................... 885

Plastics. See Resins.Polym erization . R . E . B u rk .............................................................................. 1054

DECEMBER, 1938 INDUSTRIAL AND ENGINEERING CHEMISTRY 1443

Polym ers of Lower Olefins, P robab le S tructu res of. A. W ach te r____ 822Polym ers, M ixed L inear Condensation. X -R ay Investigation . C.

S. F u lle r.................................................................................................................. 472P o t a s h , S y m p o s i u m o n

in F e rtilize r In d u s try . F . S. L odge............................................................ 878in G lass In d u stry . A. N . F in n ..................................................................... 891In troduction . J . W . T u rre n tin e .................................................................. 853Isotopes of Potassium . A. K . B rew er....................................................... 893in P erm ian S a lt Basin. H . I. S m ith .......................................................... 854in P la n t M etabolism . G. N . Ilo ffer........................................................... 885P otassium C hloride P roduction in New Mexico. T . M . C ra m e r . . 865P otassium C hloride from Searles Lake Brine. R . W . M um ford . . . 872Salts of, as Chem ical R aw M aterials. J . W . T u rre n tin e ................... 889Soil R eaction w ith, as F ertilizer. E m il T roug and R . J . J o n e s . . . . 882S ylv in ite in New M exico. R . M . M ag raw ............................................. S61T rona Process, C hem istry of, from S tandpo in t of Phase R ule. W .

A. G a le ................................................................................................................ 867Potassium . See P o tash Sym posium .P otassium C hloride P roduction in New M exico. T . M . C ram er. . . . 865Potassium C hloride from Searles Lake Brine. R . W . M um ford 872Pota toes, Sweet, S tarch from, M anufactu red in U . S. H . S. Paine,

F . H . T hurber, R . T . Balch, and W . R . R ichee ................................. 1331Propane, Explosive L im its of M ixtures of N itrogen Dioxide, Air and.

E . B. H odge ............................................................................................................. 1390Propane, L iquid and Gaseous, Viscosity of. B . H . Sage and \V. N.

L acey ........................................................................................................................ 829Propylene H y d ra tio n under Pressure. F . 'M . M ajew ski and L. F .

M arek .................... 203P ropylene Polym erization by D ilu te Phosphoric Acid. L. A. M onroe

and E . R. G illilan d ............................................................................................. 58P r o t e i n

P lastics from Soybean P roductsA ction of H arden ing or T ann ing Agents on P ro tein M aterial.

G. H . B ro ther and L. L. M cK inney ................................................. 1236R elation of W ater C o n ten t to P lastic Properties. A. C. Beckcl,

G. II . B rother, and L. L. M cK inney ............................................. 436from Soybeans, P ep tiza tion of. A. K . Sm ith and S. J . C irc le 1414in W hey, Separa ted from Lactose by Alcohol E x traction . A braham

Lcviton and A lan L eigh ton ......................................................................... 1305P u l p

from Bagasse b y Alcoholic N itric Acid. Y ields and C haracteristics.S. I. A ronovsky and D . F . J . L y n ch ....................................................... 790

In d u s try in Sou thern U . S. D . II . K illcfler............................................ 1110N itrio Acid Pulping . Analysis of Used-Acid P ulp ing Liquors. E .

R. W hittem ore, J . D . Reid, and D . F . J . L y n cn ............................... 1192Sulfate, B leached. H . J . S k inner................................................................ 318Sulfite Cooking Process. E ffect of P re trea tm en t of Spruce Wood

on R eaction . F . E . B rauns and D . S. B row n ................................... 779Sulfite, for Viscose M anufactu re . Acid P ulping of S outhern Pine.

C harles C arpen ter and F ran k M cC all. (C orrection, 182)............ 15W ood Cooking Process. B u tano l Cooking of H ardw oods and

Softwoods. J . M . M cM illen, R . A. G ortner, H enry Schm itz, andA. J . B ailey . 1407

Pulverizing. Sec G rinding.Pum ps, C entrifugal, for Process Industries . H . E . L aB o u r................. 1105P y re th ru m Flowers. K enya, a B ette r Source. V. A. Beckley, C. B.

G nadinger, and F ran k Ire la n d ................................................................ 835

R A R E E lem ents. See E lem ents, Less Fam ilia r.R ayon M anufactu re , G raphical M ethods in. C ontro l of F ac to ry

Solutions. J . H . Koffolt and J . R . W ithrow . (C orrection, 1030). 923R eciprocal T rade T reaties. See Tariff.R e f r a c t o r i e s

H ard M aterials , Q uest for. F . J . T o n e ..................................................... 232Olivine and Forste rite , in America. F . A. H arvey a nd R . E . B irch . 27 O livine and Forste rite , in E urope. V. M . G oldschm idt (Correc­

tion, 436).......................................................................................................... 32R efrigeration, V acuum ............................................................................................ 270Refugee Scientists P resen t Increasing Problem . E d ito r ia l .................. 964R esearch, D ifficulty of A ttrib u tin g A chievem ents in, to Single Inves­

tiga to r. F ind Inven to r. E d ito ria l............................................................. 601R esearch, In d u s try ’s S upport of, R esults in Benefits to Consum er.

W itness for Defense. E d ito ria l. (C orrection, 1118)......................... 601R e s i n s

D am m ar Solutions, Viscosities of. C . L. M an te ll and A nthonyS k e t t ..................................................................................................................... 417

D rying. Polym eric F u n c tio n a lity w ith R elation to A dditionPolym erization of D ry ing Oils. T . F . B rad le y ................................. 689

from F u rfu ra l Used to Im prove Affinity of H ydrophilic Aggregatefor A sphaltic B itum en. H . F . W in te rk o rn ........................................... 1362

Indene-C oum arone, M odified by Phenols. Joseph R ivk in andW . E . S heehan ................................................................................................. 1228

from M ann ito l and Sorbitol. R . M . Goepp, J r ., and K . R . B row n. 1222M astic F loor T ile. C arle ton E l lis ............................................................... 20M ethacry la te , M ethy l. Polym erization in Organic Solvents. D.

E . S tra in ..................... 345N atu ra l. Solubilities in Solvents and W axes. C . L. M an te ll and

R . W . A lla n ...................................................................................................... 262Oil-V arnish Film s, Swelling of, in W ater. J . Rinse, W . H . G.

W iebols, and H . V. T ak es ........................................................................... 1043Phenolic, Influence of, on Linseed Oil F ilm s. V. H . Turkington,

R . C. Shucy, and L . S hech ter.................................................................... 984for P ipe Coatings. Charles F itzgerald an d M . G. Jo h n so n ............... 294Plastics In d u s try , R aw M aterials of. G. J . Esselen and F . S.

B aco n .............................................. , ................................................................. 125P lastics Suitable for A irplane Dopes. G. M . K line and C. G.

M alm berg .......................................................................................................... 542P ro tein P lastics from Soybean P roducts

A ction of H arden ing or T ann ing A gents on P ro tein M aterial.G. H . B ro ther and L. L. M cK inney ............................................... 1236

R elation of W ater C on ten t to P lastic P roperties. A. C. Beckel,G. II . B rother, and L. L. M cK inney ............................................. 436

Synthetic , from C oal-T ar H ydrocarbons. W . H . Carm ody, W . E .Sheehan, and H . K e lly ................................................................................. 245

Syn the tic Coatings, # F ilm C on tinu ity of. E ffect of Com position and M olecular W eight on M inim um C oating W eights for Therm o­p lastic R esin Film s. G. H . Young, G. W . G erhard t, W . K.Schneider, and G. W . Seagren ................................................................... 685

U rea-Form aldehyde F ilm -Form ing Com positions. T . S. H odginsand A. G. H o v e y ........................................................................................... 1021

Review of C hem istry in 1937.............................................................................. 3R iver S tructures, C orrosion and Erosion in. F e rd D ieffenbach 1014

Roads. A sphaltic B itum en Affinity w ith H ydrophilic A ggregate Im ­proved by F u rfu ra l and I ts R esinous D erivatives. H . F . W inter­k o rn .......................... 1362

Rockefeller F oundation R eport Stresses N eed for R esearch in OrganicC hem istry. E d ito r ia l....................................................................................... -724

R od M ill. See G rinding.R u b b e r

Accelerators, W ater-Soluble. E x trac tio n in W ater C ure . J . W .M acK ay .................................................................................................................. 826

-C a rb o n B lack M ixtures, F loccu lation of P igm ent in. C . R . P a rkand P . P . M cC lellan .......................................................................................... 704

C olloidal S tru c tu re in Solution. Effects of P réc ip itan ts . S. D.G ehm an and J . E . F ie ld ............................................................................... 1031

Com pounds, Processing C haracteristics of. E ffect of P igm entP article Size and Surface. A. H . N ellen and C. E . B a r n e t t 776

LatexCom position and S tructu re . A. R . K em p ........................................... 154Electrodeposition. W . D . T u rn er ancLM . A. C o ler........................ 1282U ltrav io le t M icroscopy. F . F . L ucas .................................................... 146

Oxidation M echanism , Effect of T em pera tu re on. J . H . Ing-m anson and A. R . K em p ............................................................................. 1168

as P ipe Coating. Charles F itzgerald and M . G. Jo h n so n ................. 294Purified, for E lec trica l Insu lation . A. R. K em p (C orrec tion ) 314V ulcanization, Soft, C hem istry of. R eversion and N onreversion

in Low-Sulfur C om pounds. B. S. G arvey, J r ., and D . B. F orm an 1036Vulcanized, Chem ical S tructu re of. J . R . Brow n and E . A.

H au se r................................................................................................................. 1291W ater Sorption by. R. L. T ay lor and A. R. K em p ............................ 409

S A F E T Y F undam enta ls for C hem ical W orker. G. M . B riggs 641Salts, Inorganic, A ntiseptic and B actericidal Action of. Effect of pH .

R . H . G oshorn w ith E . F . D egering and P . A. T e tr a u l t ....................... 646S c i e n c e

Freedom from Political R es tra in t N ecessary in. Science, Politics,and Religion. E d ito ria l.............................................................................. 124

In terp reters N eeded to Prom ote Progress. A dult E ducation .E d ito ria l.................... 488

Nationalistic^ Trends of. Is Science In te rna tiona l? E d i to r ia l .. 1329Organized Knowledge as Basis of Philosophy. R ole of Pure

Science. E d ito ria l.......................................................................................... 966Screens in Process Industries. A. E . R eed .................................................. 1369Searles Lake Brine. C hem istry of T rona Process from S tandpo in t of

Phase R ule. W. A. G a le ................................................................................ 867Searles Lake Brine, Potassium C hloride from. R. W . M um ford . . . . 872Selenium in Soils N ot N ecessarily Toxic. H . W . Lakin, K . T.

W illiam s, and H . G. B yers.................................... 599S e p a r a t i o n P r o c e s s e s

A nalysis of U n it Sections. M erle R andall and B ruce L o n g t in . . . . 1188C orrelation betw een y vs. x and M olal H eat C o n ten t cs. M ole F rac ­

tion D iagram s. M erle R andall and B ruce L ong tin ................. 1311G eneral M ethods of A nalysis. M erle R andall and B ruce L o n g tin . . 1063

Separators, L iquid E n tra in m en t. G . M. K irk p a trick ............................. 1207Sewage Sludge Banks, S tab ilization of. W illem R udo lfs ...................... 337S h e l l a c

Chem ical N atu re . C. E . B arnes .................................................................. 449N atu re an d C onstitu tion

Chem ical Com position. H aro ld W einberger and W . H . G ard ­n e r ................................................................................................... ................ 454

Fractiona tion by Solvents. B . B. Schaeffer, H aro ld W einberger,and W . H . G ard n er.................................................................................... 451

Separation of C onstituen t Acids. B . B. Schaeffer and W . H .G ard n er........................................................... 333

Sherry. See W ine under Beverages, Alcoholic.Soap M anufacture , M eta l Corrosion in. G . L. C ox.................................... 1349Sodium B icarbonate, W ater Freed from, b y Zeo-K arb H (H ydrogen

Zeolite). S. B. A pplebaum and R ay R iley ............................................. SOSodium -Lead Alloys by C arbon R eduction . G. L. P u tn a m ................. 1138Sodium M etaphosphate in D ishwashing, S an ita ry Value of. R ela­

tive Value of Film Preven tion and A uxiliary Chem ical D isinfection.G. O. H all and C harles Schw artz ............................. 23

Sodium Silicate Adhesive Bonds in C orrugated F iberboard . O. E .Schupp, J r., and E . R . B o iler...................... _............ 603

Sodium Silicates in W ater to P rev en t Corrosion. W illiam S te r ick e r .. 348Softwood. See Wood.S o i l , _

Potash R eaction w ith, as F ertilizer. E m il T ruog an d R . J .Jo n es ............................ . • • • • • • • ■

Seleniferous, “ Nontoxio” V egetation from . H . W. Lakin, K . T .W illiam s, and H . G. B yers ......................................................................... 599

Steel Corrosion R elated to Properties of. W . F . R o g ers .................. 1181Solids, C om m ercial. D ry ing of. R . C. E rn st, D . B. A rdern, O. K.

Schmied, and F . M . T i lle r .............................................#.................. • • • • • ■ 1119Solvents, C harts for V apor Pressures of. D . H . K illeffer. (Adden- _

dum , 722) • • • ; .......... 477, 56oSolvents, Organic, C h art for V apor P ressures of. D . S. D av is 320Sorbitol. See Alcohols.Soviet Trucks to Use D istilled W ood F u e l - ....................................... 1384S o y b e a n s

Proteins, Pep tiza tion of. A. K . S m ith an d S. J . C irc le ..................... 1414Pro tein P lastics from

A ction of H ardening or T ann ing A gents on P ro te in M ateria l.G. H . B ro ther and L. L. M cK in n ey ............... 1236

R elation of W ater C o n ten t to P lastic Properties. A. C. Beckel,G. H . B rother, and L. L. M cK in n ey ................................................. 436

Spierer Lens for S tarch M icroscopy. Sybil W oodruff............................. 1409Spray Cooling Ponds. H . E . S tid stone ......................................................... 991-S pray D rying E quipm ent. W . S. B ow en .................................. 1001S pray D rying. Technical and Econom ic A spects. B. B. Fogler and

R . V. Iv leinschm idt............................................................................................ 1372Spruce. See P u lp . _S tandard M ethods N eeded in C ertification of P ro d u cts for Con­

sum ers. C onsum ers’ P ro tection . E d ito r ia l........................................... 725

F acto ry , Inosito l and O ther P ro d u cts from Steep W ater of. E d -w ard B artow and W . W . W alker................. 300

from G ram . J . L. Sarin and M . H . Q ureshi........................................... 1318M icroscopy of, by Spierer Lens. Sybil W oodruff ................... 1409from Sw eet Po tatoes, M anufac tu red in U . S. H . S. P a ine , F . H.

T hurber, R . T . Balch, and W . R . R ichee .............................................. 1331S t e a m .

Condensation. E ffect of T ube Position. H . T . Quigg, >>. C.M oyer, and R . L. H u n tin g to n ................................................................... 1047

1444 INDUSTRIAL AND ENGINEERING CHEMISTRY VOL. 30, NO. 12

D rives for E qu ipm en t in Chem ical P lants. D ry ing E qu ip m en t H eated by . C. E . B ill.

F . J . V onachen. 773 ............ _................................................. ...... . . . . . 997T urbines Descaled with Inh ib ited Acid. j . B . E n tr ik in ...................... 1279

S t e e lAlloy, Valves of, for Subzero T em peratu res. G. F . Scherer 1220Corrosion of, B uried in Soil. W . F . R ogers ............................................ 1181C orrosion, E ffect of Oxygen on. F . G. F rese .................................... 83

Steffen Process. See Sugar.S u g a r

B utyl-A cetonic F erm en ta tio n of. L. A. Underkofler and J . E .H un ter, J r ............................................................................................................... 480

in C ham pagne Production , n . E . Goresline and F . M . C ham p-l in .............................................................................................................................. 112

Steffen Process, C hem istry of. H ea t of R eaction. A. R. N e e s . . . 1323from W ood, Ferm ented to P roduce B u ty l Alcohol. N. O. Sjo-

lander, A. F . Langlykke, an d W . H . P e te rso n .................................... 1251(See also k ind o f sugar)

Sulfam ic Acid. New Industria l Chem ical. M . E . C u p ery .................. 627Sulfate P ulp . See Pulp.Sulfite Pu lp . See Pulp.S u l f u r

In d u s try . H is to ry and D evelopm ent. D . B. M ason ........................ 740M ining as Processing In d u stry . C . E . B u tte rw orth and J . W.

Schw ab.................................................................................................................... 746M ining, Re-use of Bleed W ater in. R eclam ation and T rea tm en t.

D . T . M clver, J . B. C hatela in , and B. A. A xelrad .......................... 752in P ipe C onstruction . Isaac B encow itz........................................................ 759

S u l f u r D i o x i d eR eaction w ith Olefins. R . D . Snow and F. E . F re y ............................... 176Recovery from W aste Gases. E qu ilib rium V apor Pressures over

Sulfite-Bisulfite Solutions. H . F . Johnstone, H . J . R ead, andH . C. B lank ineyer........................................ 101

R eduction , C hem istry of. T herm odynam ics. R obert L ep so e .. . . 92Sulfuric A cid -N itric Acid M ixtures, H eats of D ilu tion of. F . H .

R hodes an d C. C. N elson ................................................................................. 648Superphosphate. See P hosphate.Suspensions, D ilute, Agglom eration an d V iscosity in. G. B roughton

and C. S. W indebank ......................................................................................... 407Sw eet Po tatoes. See Potatoes.S ylvinite in New M exico. O ccurrence and M ining. R . M . M agraw . 861S y m p o s i a

D rying and A ir C ondition ing ..........................384, 506, 993, 1119, 1372, 1385E lem ents, Less F am ilia r 251, 431, 501, 611, 770Insu la tion M ate ria ls ........................................................................................... 272P a te n t P ractice and Procedure . %........................ 1420P etro leum H ydrocarbons, Chem ical U tilization o f................................ 55, 166P o ta s h .......................... ........................................................................................... 853

Syn the tic M aterials. M an-M ade M olecules. Thom as M idgley,Jr. (J. R . Caldwell, Correspondence, 481).............. ; • • • • ; ...................... 120

Syphilis, C hem ist’s P a rt in B a ttle against. C hem istry in M edicine.E d ito r ia l.................................................................................................................. 1089

R ubber Latex, M icroscopy of. F . F . Lucas. U rea-Form aldehyde. See Resins.

146

T A N T A L U M , D evelopm ents in. C . W . B alk e .......................................T an ta lu m E qu ip m en t for A bsorption of H ydrochloric Acid Gas. F .

L. H u n te r ................................................................................................................T a r i f f

Reciprocal T rad e T rea tie s ...............................................................................Recijirocal^Trade T rea ties of D oub tfu l V alue to C hem ical In d u stry .

R eciprocal T rade T reaties Should Be C arefully Exam ined. B lindD ate. E d ito ria l..............................................................................................

T rad e Agreem ent w ith G reat B rita in and C anada Signed. A notherLicking. E d ito ria l..........................................................................................

T e e t h P r o t e c t i o nF luoride R em oval from N a tu ra l W aters by Calcium Phosphates.

W . II . M ac ln tire and J . W . H am m ond .................................................F luoride R em oval from P o tab le W ater by T ricalcium P hosphate.

H ow ard A dler, George K lein, and F . K . L indsay ................................F luorine Rem oval from W ater by Tricalcium P hosphate. A. S.

B ehrm an and H . G ustafson ........................................................................T erm ite R epellents, Service of P a in t on W oods T rea ted w ith. M erle

R an d a ll and T . C. D oody ................................................................................T erpenes A utoxidized in Petro leum Solvent. J . N. B orglin ................Textiles. Nylon, New Organic S yn thetic F iber. E d ito ria l .................T ile, M astic, for Floors. C arle ton E llis ........................................................T itan ium , Econom ics of. H . C. M eyer. (C orrection, 562)................T obacco Blue M old C ontro lled w ith Benzene Vapor. P . W . G um aer. Tobacco. C igaret Smoke, Hygroscopic A gents in. J . C. Forbes and

H . B. H aag ............................................................................................................

D istillery B y-Products. L. C . Cooley. (H . O. C hu te ; Cooley,Correspondence, 1203).................... ...............*.*.* .......................................

S ta rch F ac to ry Steep W ater, Inac tive Inosito l and O ther P roductsfrom . E dw ard B artow and W . W . W alker........................................

S tream P o llu tion Problem to Be Studied a t M ellon In s titu te .E d ito ria l................ ' . ..........................................................................................

T ricalcium Phosphate. See C alcium P hosphate, T ri-.T rona Process. See Searles L ake Brine.T ube M ill. See G rinding.T ung Oil. See Oils.T urbines, D escaled w ith Inh ib ited Acid. J . B. E n tr ik in .......................

251

1214

960

844

243

1330

160

163

1011

444 639

1205 20

431 1076 ,

717

615

300

844

1279

U L T R A V IO L E TM ilk Irrad iation . F ac to rs Affecting A ntirachitic Response. H .

H . Beck, H . C. Jackson, and K . G. W cckel...................................... 632M ilk Irrad iation . V itam in D Po tency as F unction of E nergy

In p u t. B rian O’Brien, H . D . M cEw en, and K enneth M or- gareidge............................................................................................................... 839

V A C U U M D rying. R . C. E rn st, J . W . R idgw ay, and F . M . T i l l e r . . 1122Vacuum R efrigera tion ............................................................................................ 270Valves of Alloy Steel for Subzero T em peratu res. G. F . S cherer 1220V a p o r s

M ixed, C ondensation of. J . L. W allace and A. W. D av iso n 948Organic, Specific H eats of. P au l Fugassi and C. E . R udy, J r 1029Pressure

D iihring’s R ule Applied to . E . J . R o eh l............................................. 1320of Organio Solvents, C h a r t for. D. S. D av is ..................................... 320of Solvents, C h arts for. D . H . Killeffer. (A ddendum , 7 2 2 ).. .477, 565

Varnish. Linseed Oil F ilm s, Influence of Phenolic Resins on. V.H . T u rk ing ton , R . C. Shuey, and L. S h ech te r..................................... 984

V arnish-Oil F ilm s, Swelling of, in W ater. J . R inse, W . H . G. Wie-bols, and H . V. T ak es................................................ 1043

Vegetables, Frozen, E nzym e A ctiv ity in. A rtichoke H earts. M .A. Joslyn , C. L. Bedford, and G. L. M a rs h . ............................................ 1068

Viscose M anufactu re , Sulfite Pu lps for. Acid P ulp ing of SouthernPine. Charles C arpen ter and F ran k M cC all. (C orrection, 182).. 15

V i t a m i n sBi in Y east. P . L. Pavcek, W . H . Peterson , and C. A. E lv e h je m .. 802D, N atu ra l. E xam ination by M olecular D is tilla tion . K . C. D.

H ickm an and E . LeB. G ra y .................. _.............. 796D Po tency as F unction of E nergy In p u t in Ir rad ia ted M ilk. B rian

O’Brien, H . D. M cE w en, and K enneth M orgareidgo...................... 839D Potency of Irrad ia ted M ilk. F ac to rs Affecting A ntirachitio

Response. H . H . Beck, H . C. Jackson, and K . G. W eckel 632

W A R , C hem icals in, N o t So H orrib le as P ic tu red . E d i to r ia l . 366W astes. See A gricu ltu ral W aste and T rade W aste.W a t e r

Boiler, Solid M atte r in Foam ing of. A dditive Effects of Salts and B ehavior of G elatinous P recip ita tes. C . W. Foulk andR ichard U lm er................................................................................................. 158

Boiler, T rea tm en t a t H igh-P ressure S ta tion . S. T . Pow ell, I. G.M cChesncy, and F ran k H e n r y . . .............................................................. 400

Corrosionand Erosion in R iver and H arbo r S tructu res. F erd Dieffen-

b a ch .................................................................................................................. 1014in In d u stria l System s In h ib ited by C hrom e G lucosate. D . W.

H aering ............................................................................... >.......................... 1356by Sodium Silicates, P reven tion of. W illiam S tericker 348

P ollu tion Problem to Be S tudied a t M ellon In s titu te . E d i to ria l.. 844 Purification

Fluoride R em oval by Calcium P hosphates. W . H . M ac ln tireand J . W . H a m m o n d . ................................................................. 160

F luoride R em oval by Tricalcium Phosphate. H ow ard Adler,George K lein, and F. K . L in d sa y ......................... . •••• . ...................

F luorine R em oval. D evelopm ent in Use of T ricalcium Phos­phate . A. S . B ehrm an and H . G ustafson ....................................... 1011

O rganolites. Base-Exchange M aterials. # H a rry B u rre ll............... 358T urb ine Feed W ater T rea ted w ith Acid to P rev en t Scaling.

J. B. E n tr ik in ........................................... 1279b y Zeo-K arb H (H ydrogen Zeolite) to Rem ove Sodium B icar­

bonate. S. B. A pplebaum an d R ay R ile y ....................................... 80W ater Gas. See Gas.W ax, Paraffin. Solubility in P etro leum Fractions. A. Berne-Allen,

J r ., and L. T . W o rk ............................................................................................ 806W axes, R esin Solubility in. -C. L. M an te ll and R . W . A llan ............... 262W hey P roteins an d Lactose Separated by Alcohol E x traction .

A braham Lcviton and A lan L eigh ton ......................................................... 1305W ine. See Beverages, Alcoholic.W o o d

Cell W all S tructu re of. I. W . B ailey ......................................................... 40Cellulose, Purification of. F red O lsen....................................................... 524Fuel, Soviet T rucks to Use D is tille d .......................................................... 1384H ardw oods and Softwoods Cooked w ith B u tano l to Produce P ulp .

J . M . M cM illen, R . A. G ortner, H enry Schm itz, and A. J. B ailey . 1407 P a in t Service on, T rea ted w ith T erm ite R epellents. M erle R an ­

dall and T . C. D oody '. 444Pine, Southern , Acid P ulp ing of. Sulfite Pu lps for Viscose M anu­

factu re . C harles C arpen ter and F ran k M cC all. (C orrection,182)....................................................................................................................... 15

Preserva tive T rea tm en t of M illw ork. E . E . H u b e r t ......................... 1241Void Volume C alculated . A. J . S ta m m ..................................................... 1280(See also Pulp)

W ood Sugar. See Sugar.

X A N T H O P H Y LL Iso la ted b y Im proved M ethods. F . M . S ch ertz . . 1073X -R ay . Cellulose D erivatives E xam ined by D iffraction. W . A.

S isson.................................................................................. .................................... 530X -R ay , L inear C ondensation Polym ers Investiga ted by. C. S.

F u lle r........................................................................................................... 472

Y E A S T , V itam in Bi C o n ten t of. P . L. P avcek, W . H . Peterson,and C. A. E lv e h je m .. . ......................................................................... 802

Z E O -K A R B H. Sec following item.Zeolite, H ydrogen, W ater C onditioning by , to R em ove Sodium Bi­

carbonate. S. B. A pplebaum and R ay R iley .......................................... 80Zirconium , Econom ics of. H . C. M eyer. (C orrection, 562)............... 431