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SUBJECT INDEXINDUSTRIAL AND ENGINEERING CHEMISTRY
ANALYTICAL EDITION VOLUME 7— 1935
A B IE T IC Acid, V iscosity D ata for Com m ercial R osin and. G . S.Parks, M . E. Spaght, and L . E . B a rto n .. ........................................ .•••.*•
Absorption and Titration Flask, Convenient— for C arbon D ioxideDetermination. R obert G ardner.................................................................... 437
Absorption Tube, Im proved Liquid. W . D . Turner........................... 444A cetic Acid , Surface Tension between Aqueous and Isopropyl Ether
Solutions of. F. M . Brow ning and J. U. E lgin ................................. 399Acetone, Analysis of n-Butanol, Ethanol, and— in Aqueous Solution.
L. M . Christensen and E. I. Fulm er................................................................. 180Acetone, Fluorescence o f Gaseous— as Test for Traces of Oxygen. G.
H. D am on ..................................................................................................................... 133Acid, D ouble— M ethod o f Optical Analysis of Beet Products. S. J.
Osborn and J. H . Zisch. (C orrection ).......................................................... 95Acids. (See also kind o f acid.)A l c o h o l s :
Analysis of n-Butanol, Acetone, and Ethanol in Aqueous Solution.L. M . Christensen and E. I. Fulm er................................................... 180
Com m ercial Sulfated, Analytical Properties of. F . M . Biffen andF. D . Snell................................................................................................ 234
D etection of Benzene in. A . C. Lansing..................................................... 184Identification of— by Xanthate Reaction. W . F. W hitm ore and
Eugene L ieber...................................................................................................... 127Aliphatic H ydrocarbons. See H ydrocarbons.Alkali. N otes on J. Lawrence Smith Fusion. M . O. Lamar, W . M .
Hazel, and W . J. O 'L eary.'................................................................................. 429Alkali M etals. See Metals.Alkalies in Feldspars. See Feldspars.A lloy, M aking Clean Liquid— of Sodium and Potassium . J. F . B ir
mingham, Jr............................................................................................................... 53Alloys of Steel. See Steel.Alumina. Notes on J. Lawrence Smith Fusion. M . O. Lamar, W .
M . Hazel, and W . J. O ’ L eary ............................................................................ 429Aluminum, Accelerated Tests of Paint Finishes on. J. D . Edwards
and R. I. W ra y ........................................................................................................ 5Am ide N itrogen. See next item. _Am m onia, Determ ination of— and Am ide N itrogen in Plant Tissue.
G . W . Pucher, H . B . Vickery, and C. S. Leavenw orth................. 152Am m onia, Stability and Standardization o f Solution, and Determ i
nation of. Calcium H ypochlorite as Volum etric Oxidizing Agent.I. M . K olthoff and V. A . Stenger............................................................... 79
Am m oniacal N itrogen. See N itrogen.or-Amylase, Determ ination of. 8. Jozsa and W . R . John ston .......... 143Analytical Edition, Statem ent of P olicy o f— and N ote to A u th o rs .. . . 1Animal M atter. See B iological M aterials.Ansbacher’s M ethod. See Copper.Apple Peel. See U rsolic Acid.Arsenic, C olorim etric M ethods for D eterm ining— in Phosphorus-Free
Solutions. Ch. Zinzadze................................ 230Arsenic, D eterm ination of— in Coal. E . S. H ertzog............................ 163Arsenite-Persulfate M ethod. See Steel.Asparagine, E ffect o f— on R educing Pow er o f Levulose. lone W eber,
E. J. Posen, and N. G. C e b o o lsk y . ............................................................... 77Authors, Statem ent of Policy o f Analytical Edition and N ote to . .1 ,20 0 , 362A zo Nitrogen. See N itrogen.
B A L L M ill, Sim ple R otating. A. H . Furnstal............................................ 342Barbital, O ptical Crystallographic S tudy o f D erivatives o f Luminal
and. M . E. H ultquist and C. F. P o e ............................................... 398Barley C andy Test. See Sugar.B eet Products. See Sugar.Benzene, D etection o f— in Alcohol. A . C . Lansing.................................... 184a-B enzoin Oxime, Copper D eterm ination b y — in C opper-M olybdenum
A lloy Steels. H . A . K a r .................. . ................. 193Benzoyl Auramine G , Indicator for K jeldahl N itrogen Determ inations.
J. T . Scanlan and J. D . R e id ............................................................................. 125Betz-IIellige M ethod. See W ater.B i o l o g i c a l M a t e r i a l s :
D eterm ination of Am m oniacal and Urea N itrogen in. J . Y . Yee andR . O. E . D a n s .................................................................................................... 259
D eterm ination o f Phosphorus Fractions in B lood Serum. R. R.R oep k e .................................................................................................................... 7S
D eterm ination o f U ric A cid in M ixed E xcrem ent o f Birds. J. C .F ritz ......................................................................................................................... 123
D igesting— for Calcium and Phosphorus Analysis. H . W . G errita. 167 M odified F ischer-Leopoldi M ethod for D eterm ining Lead in. O. B .
W inter, H . M . R ob inson , F . W . Lam b, and E. J. M iller................... 265Q uantitative D eterm ination of Selenium on Anim al M atter and
Clinical Test in Urine. H . C . D udley and H . G. B yers .................. 3Q uantitative Spectrographic Determ ination o f Lead in. Jacob
C h olak ..................................................................................................................... 287R apid M ethod o f Preparing— for Phosphorus D eterm inations. H.
W . G errita ............................................................................................................. 116R em oval o f Bism uth Interference in Dithiaone M ethod for D e-
termiuation_ of Lead in. C . E . W illoughby, E . S. W ilkins, Jr.,and E. O. K ra em er........................................................................................... 285
Titration o f Fluorine in. E . W . S cott and A . L. H enne...................... 299Titrim etric E xtraction M ethod for D eterm ining M inute Am ounts
of Lead in. E . S. W ilkins, Jr., C . E . W illoughby, E . O. Kraemer,and F . L- Sm ith, 2 n d ............................. 33
Bismuthat© M ethod for M anganese. II . B artholow P ark .................... 427B lood . See B iological M aterials.B oron C ontent of Sea W ater o f N orth Atlantic Coast. N. W . Rake-
straw and H . E . M ahncke........................................................... 425Brom ide-B rom ate Titration. See Titration.Buret Assem bly for Standard Reducing Solutions. C. J. Schollen
berger............................................................................................................................ 199
Burner, Im proved G as— T o p for Ignition in D eterm ining Potash inFertilizers. L. E . H orat and 0 . W . F o rd .................................................... 119
Butanol. See A lcohols and Kauri Butanol Test.Butter. Application of G lass E lectrode to D airy P roducts. L . R .
Parks and C. R . Barnes........................................................................................ 71Butters, Differences in L actic A cid Percentages in. E . O. W hittier and
C. S. T rim ble ............................................................................................................. 389
C A C O T H E L IN E , Critical Study of— for D etection of T in . I. L.Newell, J. B . Ficklen, and L. S. M axfield ..................................................... 26
Calcium , Digesting B iological M aterials for— and Phosphorus Analysis.H . W . G erritz....................................................................................................... 167
Calcium , Precise D eterm ination o f M agnesium , Phosphorus, and—in Evaporated M ilk. C . H . W hitnah and H . L. A n derson ................. 46
Calcium H ypochlorite as Volum etric O xidizing Agent. I. M . K olthoffand V . A . Stenger.................................................................................................... 79
Calcium Phosphates. See Fertilizers.C a r b o n :
Application of Spectrograph to D eterm ination o f— in Steel. F . H.Em ery with H . S. B ooth .................................................................................. 419
M icrodeterm ination of. See M icroanalyses.R apid M ethod for Q uantitative D eterm ination o f— in Organic C om
pounds. C . B . Pollard and W . T . Forsee, Jr ........................................ 77C a r b o n D i o x i d e :
Convenient Absorption and Titration Flask for D eterm ination of.R obert G ardner................................................................................................... 437
From D ry Ice. W . S. I d e .................................................................................. 442Solubility of— in Salt Solutions. Confining L iquids for Gas A naly
sis. K . A . K obe and J. S. W illiam s.......................................................... 37C a t a l y s t s :
Catalytic and Induced Reactions in M icrochem istry. I. M . K olthoff and R . S. Livingston................................................................................ 209
Com bination o f— to Reduce D igestion T im e in D eterm ination of N itrogen. I. In Organic Com pounds. C . F . P oe and M . E.N a ld e r . . . ................................................................................................................ 189
D eterm ination of M ethane by C ata lytic O xidation. I. F . W alkerand B. E . Christensen....................................................................................... 9
Cellulose, Adsorption of Organic Liquids b y — Products. J. W iertelakand I. Garbacz6 w na............................................................................................... 1 10
Centrifugal Force, Nom ogram for. H erbert S hapiro ................................. 25C cruleom olybdate Determ ination. See W ater.Chart. Apparatus and Conversion— for R outine H igh-V acuum
D istillation of Oils. K . M . W atson and Charles W irth, I I I .............. 72Chart. N om ogram for Centrifugal Force. H erbert S hapiro................. 25Chloramine, Estim ation of— in W ater Supplies. P . D . M cN a m e e .. . . 333Chlorate Ion, R apid Test for— in Plant Extracts. H . R . O fford 93Chlorides, Alkyl. See n-Pentane.C h l o r i n e :
Colorimetric D eterm ination of Small Q uantities o f Chlorides inWaters. H. B . R iffenburg.............................................................................. 14
Determ ination of Available— in H ypochlorite Solutions by D irectTitration with Sodium Thiosulfate. V . A . W illson ............................ 44
Determination o f— in Organic C om pounds. I. R apid Lam pM ethod. W . M . M alisoff............................................................................... 428
M odified Volhard M ethod for D eterm ination of. J. R . Caldwelland H . V . M oyer ................................................................................................ 38
Volum etric M icrodeterm ination o f Chloride and Potassium Ions.Burlingame Bullock and P. L. K irk ............................................................ 178
C o a l :Control of Form s o f Iron in D eterm ination of Fusion Tem peratures
of— Ash. W . T . R e id ....................................................................................... 335Determ ination o f Arsenic in. E . S. H ertzog .............................................. 163Determining Correct W eight of Sample in—-Sampling. L. S. Kassel
and T . W. G u y .................................................................................................... 112L aboratory Assay Tests for D eterm ination o f G as, Coke, and B y
Products of. W . A. Selvig and W . H . O d e ............................................ 8 8M icrochem ical Analysis of Solid Fuels. W . R . K irner.......................... 294Plastic Stage in— Carbonization. J. H. Lum and H. A. Curtis 327
Coke. See Coal.C olorado River. See W ater.C o l o r i m e t r i c D e t e r m i n a t i o n s :
Color Test for Identification of M on o-, D i-, and T rin itro Com pounds.R. W . Host and Frank N icholson ................................................................ 190
E lectrolytic— M ethod for M icrodeterm ination o f Lead. M erleRandall and M . N. Sarquis............................................................................ 2
Manganese in Presence of Titanium . G . J. H ou gh ........................ 408M ethods for D eterm ination of Phosphorus in Presence o f Silica,
Arsenic, Iron, and Nitrates. Ch. Zinzadze. (C orrection, 320 ). . 227M ethods for Determining Arsenic in Phosphorus-Free Solutions.
Ch. Z inzadze......................................................................................................... 230Photoelectric Colorimeter. J. H. Y oe and T . B . Crurapler................. 281Photoelectric Colorim etry in M acro- and M icroanalysis. R.* II.
M ü lle r ................................................................................................................... 223Photoelectric Photom eters for. Ch. Z inzadze........................................... 280R oulette Com parator for. J. H. Y oe and T . B . C rum pler................... 78Small Quantities of Chlorides in W aters. H . B . R iffen burg.............. 14Solutions for C olorim etric Standards. V I. Ferric Chloride. M .
G. M ellon and C. T . K asline.................................................................... 187Variables Involved in— of M olybdenum . L. C . H urd and H . O.
A llen ................................................ 396Com bustion M ethod, Determ ination o f Sulfur in Steel by . H . A . K ar. 244 C om bustion Pipet. See Pipet.Condenser, Simple Reflux— for Use w ith Erlenm eyer Flaska. J W .
Olson and C. E . Plass............................................................................................ 444Conductance M easurements, E lectronic Bridge Balance Indicator for.
R . L. Garman and G . F. K in n ey ...................................................................... 319
448
NOVEMBER 15, 1935 ANALYTICAL EDITION 449
C o p p e r :Ansbacher’a M ethod for D eterm ining— in Organic M atter. Olive
Sheets, R . W . Pearson, and M arvin G ieger................................................ 109D eterm ination o f— by a-B enzoin Oxime in— M olybdenum Alloy
Steels. II. A . K a r ....................................... ..................................................... 193D eterm ination o f M inute A m ounts o f— in M ilk. L. W . Conn, A.
H. Johnson, H . A . Trcbler, and V. K arpenko....................................... 15E stim ation of Small A m ounts of Lead in. B artholow Park and
E. J. Lew is........................................................................................................ 182S pectrophotom etric D eterm ination o f— in Ores and M attes. J. P.
M eh h g ............................................................................................................... 387Copper Sulfatc-P ropylcnediam ine Reagent. See M ercury.C orn Sirup. See Sirup.C orrosion, M ethod for M easuring— of M etals. W . R . van W ijk ......... 48Cracking. See Petroleum.Crystal G row th Process, Short M ethod for Calculating D elta D in.
M oses G ord on .................................................................................................... 386Crystallographic Study, O ptical— of D erivatives of Barbital and
Luminal. M . E . H ultquist and C. F . P o e ........................................... 398Cyanide, Separation and D etection of. L. J. Curtm an and S. M .
E d m on ds.......................................................................................................... 121
D A I R Y P roducts. See M ilk and Butter.D esiccators, Stirring Air within. F . J. Z in k .. ....................... 442Dialysis, R apid M ethod for— of Large Quantities of Protein Solution.
G . C . H . S ton e ........................................................................................................ .. 8Diastase, M alt, A daptation o f H agedorn and Jensen M ethod for E sti
m ation o f Saccharifying Pow er of. H. C. G ore and H . K . S tee le ... 324D ichlorofluorescein as A dsorption Indicator in Volum etric D eterm i
nations o f Halides. K arl B am bach and T . H . R id er ...................... 165D initroaniline A zo D yestuffs. See Dyestuffs.D iphenylam ine, D eterm ination o f— in Sm okeless Pow ders. S. G.
C o o k ............................................................... , . 250D iphenylbenzidine Sulfonic Acid. O xidation-R eduction Indicators. I.
L. A . Sarver and W m . von F ischer................................................................ 271D i s t i l l a t i o n :
A pparatus and C onversion Chart for R outine H igh -V acuum — ofOils. K . M . W atson and Charles W irth, I I I ........................................ 72
Apparatus for C ontrol o f Pressure in. G . W . J acobs ............................ 70A utom atic Still Cut-O ff. A. H . H ale and F. D . Tuem m ler................ 441Econom ical C ontinuous D istilling Apparatus. F . M . Schertz 441Im provem ents in Design of Pressure C ontrol A ssem bly. S. Palkin. 436M olecular Still. W . H . Strain and W . M . A llen ......................... 443Precision Oil G age in. S. P a lk in ........................ 434Reflux R egulator for L aboratory Stills. J. H. B ruu n ............................ 359Sim ple A utom atic C ut-O ff for E lectric Stills. M . R . A . R a o and
B . S. Itao ........................................................................................................... 377U se of Sintered Glass D isks in. M . M a ttik ow ........................................ 136Vacuum , Pressure Regulator for. O. J. Schierholtz............................... 284Vacuum Regulator for Engler Fractionation . C . W . M cC o n n e ll . . . 4
D ithizone. See Lead.D ry Ice. See C arbon D ioxide.D ye, D eterm ination o f Fineness o f N itrocellulose by— A bsorption.
A . J. P h iU ip s .. . ........................................................................................................ 416D yestuffs, D initroaniline A zo, Indicator Properties of. H enry W enker 40
E G G S , R efractom etric Estim ation of T ota l Solids C ontent of W hole—and o f Y olks. M . I. B a iley ................................................................................ 385
E l e c t r o d e s :A pplication of G lass— to D airy Products. L. R . Parks and C. R .
B arnes....................................................................................................................... 71D evice for H olding— during E lectrom etric Titrations. M . L.
H erzog ....................................................... .*................................ “17G erm anium -G erm anium D ioxide. M . L . N ichols and S. R . C oop er. 350 G erm anium -G erm anium D ioxide, Potentiom etric T itrations with.
M . L. N ichols and S. R . C oop er ............................ 353G lass, Quinhydrone, and H ydrogen, D irect-R eading pH M eter for.
Allan H em ingw ay.............................................................. 203E lectrolytic-C olorim etric M ethod for M icrodcternnnation o f Lead.
M erle Randall and M . N. S arqu is ................................................................... 2E lectrom etric T itration . See T itration.E lectronic Bridge Balance Indicator for C onductance M easurements.
R. L. Garm an and G . F. K in n e y . . . . . ............. 319Erlenm eyer Flasks, Sim ple Reflux Condenser for Use with. J. W.
Olson and C. E . P loss............................................................................................ 444E thanol. See A lcohols. , .E vaporation Rates, Volum etric D eterm ination of. L. A . W etlaufer
and J. B . G regor...................................................................................................... 290E vap-O -R otor. See Paints. , . . . , „ .Explosives. D eterm ination of D iphenylam ine in Sm okeless Powders.
8 . G . C o o k ................................................................................................... 250E xtraction, A pparatus for— of Solids by U pward Flow o f Solvent.
F . E . H olm es.............................................................. 75
F E E D , M ixed, D eterm ination o f Lactose in. D . A . M agraw andC . W . S ievert............................................. . . . . 106
Feldspars, M odified H ydrofluoric A cid M ethod for Determ iningAlkalies in. E . W . K oen ig .......................................... ,* * v ‘ * v , ; * * , v ' * * * *
Ferric Chloride. Solutions for Colorim etric Standards. \ I. M . G.M ellon and C. T . K asiine....................................................................................... 187
Ferrom agnetic A lloys. See Steel.F e r t i l i z e r s *
Im proved Gas Burner T o p for Ignition in D eterm ining Potash in.L. E . H orat and O. W . F ord .......... ................ . . • ■. • ■ • • • • • • • - 119
Loss o f W ater-Soluble Potash in— M ixtures. W . H . Ross, K . C.Beeson, L. M . W hite, and A. R . M e r z . ........... 305
Preparation and Properties of M on o-, D i-, and Tricalcium rh o s -pnatea. H. W . E . Larson.............................................................................. 401
Filters, Preparation o f— of Sintered Glass. P. L. K ir k . .. .......................... 135Filtration o f H ot Solutions. G. R . Y o h e .............. ........................................ 206Fischer-Leopoldi M ethod. See Lead.Fiexom eter. See R ubber.Flue Gas. See Gases. , r « . . ,Fluorine, D eterm ination o f— in D rinking W ater. H . V. sm ith . . . . . . 23Fluorine, T itration o f— in B iological M aterials. E . W . Scott and A . *
L. ..................................................................................................................... 299FueLs. Se« kind o f fuel. _ aFunnel for H ot W ater. J. R . Caldw ell. - •;••,**,*••-•......... ; •••••• - <6Fusion, Im provem ents in V acuum — M ethod for D eterm ination oi
O xygen and Nitrogen in Steel. John Chipm an and M . G . Fontana ...............................................................................................................................
Fusion, N otes on J. Lawrence Smith M ethod for. M . O. Lamar, W. M . Hazel, and W. J. O 'L ea ry .....................................................................
G A L V A N O M E T E R Suspension, Simple Inexpene.i\e. H. It. J o n e s ..G a s e s :
Burner for. See Burner.Com bination of Podbielniak D istillation C olum n and Shepherd
Apparatus for A nalysis o f C om plex G aseous Mixtures. J. VV,• L an g .........................................................................................................................
Confining L iquids for Analysis of. Solubility of C arbon D ioxide inSalt Solutions. K . A . K obe and J. S. W illiam s.................................
C onstant-F low Orifice M eters of Low C apacity. R . T . P a ge ............D eterm ination of W ater and H ydrogen Sulfide in— M ixtures. Foster
Fraas and E . P. Partridge...............................................................................Flue, Analysis of Com bustibles in . R . N . E vans and J. E . D aven
port ................................................................................. ..........................................Im proved S low -C om bustion P ipet for— Analysis. D . J. Porter and
D . S. C ryd er......................................................................................................Im provem ents in Effusion M ethod for D eterm ining Specific G ravity
of. L . C. K em p, Jr., J. F. Collins, Jr., and W . E. K u h n ...................Laboratory Assay Tests for D eterm ination o f— , Coke, and B y -P rod
ucts of Coal. Wr. A . Selvig and W , II. O d e........................ ...................Sam pling and Analysis of Entrained M atter in. F . B . Varga and
R. 11. N ew ton .......................................................................................................Sewer, Field M eth od for D eterm ination of Traces of H ydrogen Sulfide
in. W . J. W il«y ............................................................................ .....................Gasoline. See Petroleum .G erm anium -G erm anium D ioxide E lectrode. See E lectrodes.Glass D isks. See D istillation.Glass Electrode. See E lectrode.Glass Filter. See Filtration.
H A G E D O R N and Jensen M ethod . See Diastase.H a l i d e s : _
Dichlorofluorescein as A dsorption Indicator in Volum etric D eterm inations of. Karl Bam bach and T . H. R id e r ..........................................
Identification o f— in Presence o f Th iocyanates. G. B . and L. K .H eisig..................... ..................................................................................................
(See also kind o f halide.)H ydrazine, O xidation of. IX^ M on o- and D i-delectronation o f— b y
Perm anganate in H ydrochlorio A cid Solution. A . G. Ilou pt, K.W . Sherk, and A . W . B row ne............................................................................
H t d r o o a r b o n s : . . . ,Estim ation of Unsaturation in A liphatic— b y Brom ide-Brom ate
Titration. S. P. M ulliken and R . L . Wrakem an...................................Im proved Silver N itrate M ethod for D eterm ining M ercaptans in—
Solvents. W . M . M alisoff and C. E . A nding, Jr.................................Procedure for C lassification of. S. P. M ulliken and R . L . W akem an. (See also Petroleum and kind o f hydrocarbon.)
H ydrochloric A cid , M on o- and D i-delectronation of H ydrazine by Perm anganate in— Solution. O xidation o f H ydrazine. IX . A.G. H oupt, K . W . Sherk, and A . W . B r o w n e .........................
H ydrocyan ic A cid , Photronic Photoelectric Turbidim eter for D etermining— in Solutions. E . T . Bartholom ew and E . C. R a b y .........
H ydrofluoric Acid, M odified— M eth od for D eterm ining Alkalies inFeldspars. E . W . K oen ig ....................................................................
H ydrogen Electrodes. See Electrodes.H ydrogen-Ion Concentration. D irect-R eading pH M eter for Glass,
Quinhydrone, and H ydrogen Electrodes. Allan H em ingw ay.............H ydrogen M icrodeterm ination. See M icroanalyses.H ydrogen Sulfide, D eterm ination o f W ater and— in Gas M ixtures.
Foster Fraas and E. P. Partridge.....................................................................H ydrogen Sulfide, Field M ethod for D eterm ination of Truces o f—
in Sewer Gases. W . J. W iley ............................. ................................ .............H ypochlorite Solutions, D eterm ination of A vailable Chlorine in— by
D irect T itration with Sodium Thiosulfate. V. A. W illson ..................
I N D IC A T O R Properties of D initroaniline A zo D yestuffs. HenryW enker................................................................... ............... .....................................
Indicators of O xidation-R eduction . I. D iphenylbenzidine SulfonicAcid. L. A . Sarver and W m . von Fischer..................................................
Industrial and Engineering Chemistry. See Analytical Edition. Invertase, M ethod for D eterm ining Yeast— A ctiv ity . W\ R. John
ston, Sutton R edfern, and G . E . M iller.........................................................Iodinated Organic Com pounds of M ercury. See M ercury.Iodine, Effect o f T im e, E xcess of W ijs Reagent, and Tem perature
on— Value o f Tung Oil. K . H o, C . S. W an, and S. H . W e n ................Iodine, R ecovery of Silver and— from Silver Iodide. J. R . Sp ies..........Iron, C ontrol of Form s o f— in D eterm ination o f Fusion Tem peratures
of Coal Ash. W . T . R e id ..........................................................................Iron, Volum etric D eterm ination o f— in Leather. G . F . Sm ith and
V. R . Sullivan............................................................................................................Isopentane. See n -Pcntane.Isopropyl Ether, Surface Tension betw een A queous and— Solutions of
A cetic Acid. F. M . Brow ning and J. C . E lg in .........................................
K A U R I B utanol T est for Solvent Pow er.W . J. Troeller, and M . D . M organ ................
K jeldahl M ethod. See N itrogen.
E . L . Baldcschwieler,
L A C Q U E R . See Paint.L actic Acid. See Butter.Lactose. See M ilk.L e a d :
E lectrolytic-C olorim etric M ethod for M icrodeterm ination of. M erleRandall and M . N. Sarquis............................................................................
E stim ation of Small Am ounts o f— in Copper. Bartholow Parkand E. J. Lew is.............................................................. .................................. ..
M odified F ischer-Leopoldi M ethod Based on D ithizone for D eterm ination of. O. B . W inter, H . M . R obinson , F. W. Lam b, and E.J. M iller..................................................................................................................
Q uantitative Spectrographic Determ ination o f— in B iological M a terial. Jacob C h olak . .
391
429
136
150
37355
198
174
191
338
88240
202
165
249
54
59
86275
54
68314
203
198
202
44
40
271
82
96118
335
301
399
374
2
182
265
287
450 INDUSTRIAL AND ENGINEERING CHEMISTRY VOL. 7, NO. 6
Rem oval of Bismuth Interference in Dithizone M ethod for D etermination o f— in Biological Materials. C . E . W illoughby,E. S. Wilkins, Jr., and E. 0 . K raem er........................................................ 285
Titrimetric. Extraction M ethod for Determining M inute Amounts o f— in Biological Materials. E. S. Wilkins, Jr., C . E. W illoughby, E . O. Kraemer, and F. L. Smith, 2 n d ....................... 33
Leather, Volum etric Determ ination of Iron in. G. F. Smith and V. R.Sullivan......................................................................................................................... 301
lévu lose , E ffect of Asparagine on R educing Power of. lon e W eber,E. J. Posen, and N. G. C eboolsky .................................................................. 77
Lignin. See W ood.Liquid-Vapor Equilibrium Com positions, Apparatus for Study of.
ft. M. W iley and E. H. H arder.......................................................................... 340Luminal, Optical Crystallographic Study o f D erivatives of Barbital
and. M . E. H ultquist and C. F. P o e ............................................................. 398
M A C R O A N A L Y S IS . See M icroanalyses.Magnesium, Determ ination of Manganese and— in Soils and Silicate
Rocks. L. A. Dean and E. T ru og ................................................................... 383Magnesium, Precise Determination o f Calcium, Phosphorus, and—
in Evaporated Milk. C. H . W hitnah and H. L. Anderson.................. 40M alt Diastase. See Diastase.M a n g a n e s e :
Bismuthate M ethod for. II. Bartholow P ark ...................................... 427Colorimetric D eterm ination o f— in Presence o f Titanium . G. J.
H ough .................................................................................................................... 408Determination o f— and Magnesium in Soils and Silicate Rocks. L.
A. Dean and E. T ruog. ............................................................................ 383M odified Persulfate-Arsenite M ethod for Manganese in Steel Analy
sis. E. B . Sandell, I. M . Kolthoff, and J. J. Lingane..................... 256Spectroohotom etric Determ ination of— in Steel. J. P. M ehlig.
(R . H. M öller; M ehlig; Correspondence, 3 6 1 ).................................... 27M anom eter and M anostat. See Pressure.M aple Sirup. See Sirup.M attes, Soectrophotom etric D eterm ination of Copper in Ores and. J.
P. M ehlig ................................. 387Meineke’ s M ethod. See Steel.Merca.jptans. Im proved Silver Nitrate M ethod for D eterm ining— in
Hydrocarbon Solvents. W . M . M alisoff and C. E. Anding, Jr 86Mercury, Application of Spacu Copper Sulfate-Propylenediam ine
Reagent in Determination o f— in Iodinated Organic Com pounds of.R . B. Sandin and E. T . M argolis..................................................................... 293
M ercury Manometer. See Pressure.M etals, Alkali, D etection and Volum etric Estim ation of. lt. S.
B arnett....................................................................................................................... 183M etals, M ethod for Measuring C orrosion of. W . R . van W ijk 48Methane, D eterm ination of— b y Catalytic O xidation. I. F. W alker
and B . E . Christensen.......................................................................................... 9M i c r o a n a l y h e s :
Analysis of Solid Fuels. W . R . K irner........................................................ 294Catalytic and Induced R eactions in M icrochem istry. I. M .
K olthoff and R . S. L ivingston ...................................................................... 209Chemical M icroscopy. (Abstract, C . W . M a son )................................ 308D irect Simultaneous— of Carbon, H ydrogen, and Oxygen. W . R .
Kirner:II. Analysis of Pure Com pounds Containing Carbon, H ydrogen,
Oxygen, and Sulfur........................................ 363III. Analysis of Pure Com pounds Containing Carbon, H ydrogen,
Oxygen, and N itrogen................................................................................. 366E lectrolytic-C olorim etric M ethod for— of Lead. M erle Randall
and M . N. Sarquis............................................................................................ 2General M icrochem istry. A . A. Benedetti-P ichler................................. 207In Toxicology. (Abstract, A . O. G ettler)................................................... 352M icrochem istry in Industry. (Abstract, Frank Schneider)................. 315Photoelectric Colorim etry in M acroanalysis and. R . H . M ü lle r ... . 223Recent Advances in Applied M icrochem istry. J. B . N iederl.............. 214R ole of Analytical Chem istry in Industrial Research. II. B . L.
Clarke and H . W . H erm ance........................................................................ 218Sem i-M icro-K jeldahl Determ ination of N itro and A zo Nitrogen.
R. A . H arte.......................................................................................................... 432Spectrographic— of Zinc. L. H. R ogers..................................................... 421Volum etric— of Chloride and Potassium Ions. Application of
Potassium M ethod to Sea W ater. Burlingame Bullock and P.L. K irk ................................................................................................................... 173
M icroscopes, Permanent Aqueous M ounts for. II. R . Sm ith................ 286M i l k :
A pplication o f G lass E lectrode to D airy Products. L. R . Parks andC. It. Barnes . . . . 71
Determ ination of Lactose in M ixed Feed. D. A . M agraw and C.W . S ievert................................................................................................................ 106
Determ ination of M inute Am ounts of Copper in. L . W. C o n n /A .II. Johnson, H . A . Trebler, and V. K arpenko........................................... 15
Evaporated, Precise D eterm ination of Calcium , M agnesium , andPhosphorus in. C . H. W hitnah and H . L. A n derson ....................... 46
M inerals, Determ ination o f Stibnite Sulfur in Ores and. J. A. Tscher-nikhov and T . A. U spenskaya............................................................................. 309
M olecular Still. W . H. Strain and W . M . A llen .................................. ' A 443M olecular W eight o f Cracked Distillates. Ogden FitzSimons and E.
W . T h ie le ................................................................................................................... 11M o l y b d e n u m :
Copper— ALloys Steels. See Steel.Determ ination o f— in Plants and Soils. K . E . Stanfield........................ 273Variables Involved in Colorim etric Determ ination of. L. C . Hurd
and II. O. A llen..................................................................................................... 396
N IT R IC A cid , D estruction of Organic M atter iu Plant M aterial by Perchloric Acid and. J. E . Gieseking, H. J. Snider, and C. A . G etz . 185
N itric Acid, E m ergency Stopper for— Bottles. Darwin H arris 162N itro C om pounds, M ono-, D i-, and Tri-, C olor T est for Identification
of. R . W . B ost and Frank N icholson .......................................................... 190Nitrocellulose, Determ ination of Fineness o f— by D ye Absorption. A.
J. Phillips................................................................................................................... 416N i t r o g e n :
Ainm oniacal and Urea, D eterm ination of. J. Y . Y ee and R . O. E.D a v is ....................................................................................................................... 259
Benzoyl Auramine G , Indicator for K jeldahl— D eterm inations. J.T . Scanlan and J. D . R e id ............................................................................. 125
C om bination o f Catalysts to R educe D igestion Tim e in Determ ination o f . I. In Organic Com pounds. C . F. Poe and M . E. N a ld er..................................................................................................................... 1S9
Determ ination of Am m onia and A m ide— in Plant Tissue. G . W .Pucher, H. B . Vickery, and C. S. Leavenw orth ................................... 152
Determ ination of O xygen and— in Steel. John Chipm an and M . G.F ontana................................ . . ............................. 391
N itro and A zo, Sem i-M icro-K jeldahl D eterm ination of. R . A.H arte..............................................................................................................................432
Protein, Accelerating Ivjeldahl-G unning-Arnold D igestion b y A d d ition o f Phosphates in D eterm ination of. H . W . G erritz and J.L. St. Joh n ........................................................... 380
N om ogram . Sec Charts.
O IL :Lubricating. See Petroleum Lubricants.M odified M ethods of Analysis of Com m ercial— Em ulsions and Sus
pensions. F. M . Biffen and F . D . Snell................................................... 316Precision— Gage. S. Palkin............................................................................... 434Sulfonated and Sulfated, D eterm ination of A ctive Ingredients and
Total Fatty M atter in. Ralph H a rt ......................................................... 137Tung, E ffect o f T im e, E xcess of W ijs R eagent, and Tem perature on
Iodine Value of. K . H o. C . S. W an, and S. H. W en .......................... 96O ptical Analysis, D ouble-A cid M ethod of— of Beet Products. 8 . J.
Osborn and J. H. Zisch. (C orrection )........................................................... 95O r e s :
Determ ination o f Stibnite Sulfur in M inerals and. J. A . Tscherni-khov and T . A . U spenskaya........................................................................... 309
Selenite-Pho8phatc M ethod for D eterm ining Zirconium in. S. G .Sim pson with W . C. S ch u m b........................................................ 36
Spectrophotom ctric D eterm ination of C opper in M attes and. J. P.M eh lig ...................................................................................................................... 387
O r g a n i c C o m p o u n d s :A dsorption of Organic L iquids b y Cellulose P roducts. J. W iertclak
and I. G arbacz6 v n a ..................................................................... ..................... 110A nsbacher’s M ethod for D eterm ining C opper in. O live Sheets,
R . W . Pearson, and M arvin G ie g e r .. . . . . . . . . . . . ....................... 109C om bination of Catalysts to R educe D igestion T im e in D eterm ining
Nitrogen. I. C . F. P oe and M . E . N alder.......................................... 189D eterm ination o f C hlorine in. I. R a p id Lam p M ethod . W . M .
M alisoff........................................................... ............................................. ......... 428D eterm ination of Selenium in. K . T . W illiam s and H . W . L a k in . . . 409ItaDid M ethod for Q uantitative D eterm ination o f C arbon in. C . B .
Pollard and W . T . Forsee, Jr.......................................................................... 77SimDle Photoelectric Therm oregulator for O xidation of. W . L.. W alsh and N. A. M ila s ..................................................................................... 122
Orifice M eters. See Gases.O rthonhenylphenol, D etection and E stim ation of. W . O. E m ery and
II . C . Fuller............................................................................................................ 248O xidation-R eduction Indicators. See Indicators.Oxidizing Agent, V olum etric, Calcium H ypochlorite as. I. M . K olt
hoff and V. A . Stenger........................................................................................... 79O x y g e n :
D eterm ination of— and N itrogen in Steel. John Chipm an and M .G . F on tan a......................................................................................... 391
D irect D eterm ination of T o ta l— in Oils. M . E . M a rk s ......................... 102Fluorescence of G aseous A cetone as Test for Traces of. G . H .
D a m on ....................................... ............................................................................. 133M icrodeterm ination. See M icroanalyses.Precise D eterm ination o f— in W ater b y Syringe Pi pets. August
K rogh ................................................................................. 131
P A IN T :Accelerated Tests o f— Finishes on Alum inum . J. D . Edw ards and
R. I. W ra y .............................................................................................................. 5E vap -O -R otor for C om paring E vaporation R ates o f Lacquer Sol
vents. J. H . Low ell......................................................................... 278Kauri Butanol Test for Solvent Pow er. E . L. Baldeschw ieler, W .
J. Troeller, and M . D . M organ ................................................................... 374V olum etric D eterm ination o f E vaporation Rates. L . A . W etlaufer
and J. B . G regor.................................. 290Paper Testing, D evelopm ents in— during 1934............................................... 226Paper Testing, O pacity Standards fo r ................................................................. 81Peat. M icrochem ical Analysis of Solid Fuels. W . R . K ir n e r . 294n-Pentane and Isopentane, Analysis of M ixtures of M onochlorides of.
H . B . Hass and Paul W eber ........................................................................... 231Perchlorates, D eterm ination of. M . L. N ichols. . ............................ ........... 39Perchloric Acid , D estruction of O rganic M atter in Plant M aterial by
N itric A cid and. J. E . G ieseking, H. J. Snider, and C . A. G etz . . . . 185Perchloric A cid M odification of M eineke’s M ethod for D eterm ining
Sulfur in Plain and A lloy Steels. Louis S ilverm an................................. 205Permanganate, M on o- and D i-delectronation o f H ydrazine b y — in
H ydrochloric A cid Solution. O xidation o f H ydrazine. IX . A .G . H oupt, K . W . Shcrk, and A . W . B row n e............................................... 54
Persulfate-Arsenite M ethod. See Steel.Petrographic Im m ersion M ethod , M odified— for D eterm ination of
Free Silica. II. L. Ross and F . W . Sehl....................................................... 30P e t r o l e u m :
Analysis of Acid Sludge from M ineral Oil Treatm ent. E . H olzm anand Stefan Suknarow ski................................................ ;................................. 378
Apparatus and Conversion Chart for R ou tine H igh-V acuum D istillation o f O ils. K . M . W atson and Charles W irth , I I I ................... 72
Inexpensive Vacuum Regulator for Engler Fractionation . C . W.M cC onnell.............................................................................................................. 4
Lubricants:D irect D eterm ination of T ota l O xygen in Oils. M . E . M arks. . . 102R apid Precision Viscom eter for M easuring V iscosity Index of.
Ogden FitzSim ons.......................................................................................... 345M olecular W eight of Cracked Distillates. O gden FitzSim ons and
E. W . T h ie le .......................................................................................................... 11Standardized Test of G asoline C olor Stability. C . D . L ow ry, Jr.,
M . A. Sm ith, and G. B . M u rp h y ................................................................. 140(See al*o H ydrocarbons.)
p-Phenylenediam ine, Sim ple and Seusitive Test for. Oscar H e im .. . . 146Phosphate, Photom etric Investigation o f C eruleom olybdate D eterm i
nation o f— in W aters. R . J. R obinson and H . E. W irth ..................... 147Phosphate-Selenite M ethod for D eterm ining Zirconium in Ores. S.
G . Sim pson with W . C. S ch u m b................................................................... 36P h o s p h o r u s :
. Colorim etric M ethods for D eterm ination o f— in Presence o f Silica,Arsenic, Iron, and Nitrates. Ch. Zinzadze. (C orrection , 3 2 0 ) . . 227
D eterm ination o f— Fractions in B lood Serum. R. R . R oep k e 78D igesting B iological M aterials for Calcium and— Analysis. H . W .
G erritz........................................................................................................... 167
NOVEMBER 15, 1935 ANALYTICAL" EDITION 451
Precise D eterm ination of Calcium , M agnesium , and— in E vaporatedM ilk. C . II. W hitnah and H. L. A n d e r s o n .. . . .................................. 46
Rapid M ethod o f Preparing B iological M aterials for— D eterm inations. II. W . G erritz ................. :••••...................... .* • • : .......................
Photoelectric C olorim etry. See C olorim etric D eterm inations.Photoelectric Therm oregulator, Simple. W , L. Walsh and N . A.
M ilas ................................................................................................................... 122Photom etric Investigation of Ceruleom olybdate D eterm ination of
Phosphate in W aters. R . J. R obinson and II. E. W irth ........................ 147Photronic P hotoelectric Turbidim eter. See Turbidim eter.P i p e t :
A utom atic— for R apid D elivery. W . T . Forsee, Jr., P. J. T h om pson, and C. B . P o lla rd .................................................................. .................. 166
Im proved Slow C om bu stion— for Gas Analysis. D . J. Porter andD . S. C rvd er . ......................................................................................... 191
Syringe. August K ro g h . . . . .............................. ................................ ............. 130Syringe, Precise D eterm ination o f O xygen in W ater by . A u gust
K rog h ................................................................................................................. 131P l a n t s : .
D estruction of Organic M atter in— M aterial b y N itric and Perchloric Acids. J. E. G icscking, H . J. Snider, and C. A. G e ts 185
D eterm ination o f Am m onia and Am ide N itrogen in— Tissue. G . W .Pucher, II. 11. Vickery, and C. S. Leavenw orth .............................. 152
D eterm ination of M olybdenum in Soils and. K. E . Stanfield ............ 273R apid T est for C hlorate Ion o f— Extracts. H . R . O fford ............. 93
Platinum Therm ocouples. See Therm ocouples.Podbielniak D istillation Colum n. See Gases.Potash. See Fertilizers.P o t a s s i u m : . . .
D eterm ination o f Small A m ounts o f— b y Sodium C obaltim tnte.H. W . L olise ................................................................................................ 272
Sodium — A lloy. See Alloys.Volum etric M icrodeterm ination o f Chloride and— Ions. A pplica
tion o f— M ethod to Sea W ater. Burlingam e B ullock and P . L.K irk * • • • • 178
Zinc C obaltinitrite for D etection of. Jane Adam s, M artha Hall,and W . F. B a iley ........................... .: • * y ‘ * ' j
Potassium D ichrom ate, Standardization of. H . H . W illard andPhilena Y o u n g ............................................................ . . . . . . . . . . . . . . . . . . . . 57
P otassium Ferroeyanide, E m ploym ent o f— in Standardization o f D ilute Potassium Perm anganate. E . J. deBeer and A . M . H jort. . 120
P otassium Perm anganate. See preceding item.Potentiom etrio Titrations. See Titration.Poultry Excrem ent. See B iological M aterials.Pow ders, Smokeless. See Explosives.P r e s s u r e : .
Im provem ents in D esign of— C on trol Assem bly. S. P a llu n 436M anom etric M an ostat for C ontrol of. G . B . B a ch m a n ................. 201Regulator for— in V acuum D istillation . O. J. Schierholtz. . . . . . . . 284Six-Atm osphere M ercu ry M anom eter. W alter Scholl and R . O.
E. D a v is ........................................................................................................... 135P ropylenediam ine-C opper Sulfate Reagent. See M ercury.Protein, R apid M eth od for D ialyzing Large Quantities o f— Solution.
G . C . H . S ton e ............ ......................................................................................... 8Protein N itrogen. See N itrogen. „Pyrethrum Flow ers, D eterm ination of Pyrethrin II in . II. L. Ila ller
and Fred Acree, Jr. (C orrection, 422)...................................................... 343
Q U IN H Y D R O N E Electrodes. See E lectrodes.
R E D U C IN G Solutions, Standard, B uret A ssem bly for. C. J. Schollenberger............................................. , ...................................... 199
R eduction-O vidation Indicators. See Indicators. ^R efractom etric Estim ation of T ota l Solids C ontent of W hole Eggs and
of Y olks. M . I. B a iley ................................ 385Rosin, V iscosity D ata for Com m ercial A b ietic A cid and. G. S. 1 arks,
M . E. Spaght, and L . E . B a rton .......................................................... 115Roulette Com parator for Colorim etric Analysis. J. H . Y oe and r . B .
C rum pler..................................................................................................................... *8
D eterm ination o f Free Sulfur in. A . F. H ardm an and H. E . Barbe-henn..................................................................................................... , ................. 193
D eterm ination o f T ota l and Free Selenium in V ulcanizates. E . ^Cheraskova and L. V eisbrute ................................................................ • 407
Fatigue Cracking T est for T ire Tread C om pounds. E . T . Rainierand R . H . G erk e...................................; ................ v •• • 868
Laboratory Flexom eter for E valuating B reakdow n Characteristics o f— C om pounds. R . S. H avenhili and W . B. M acB ride. . . . . . . . 60
Vulcanized, M odification o f Th iocyanate M ethod for Determ ining True Free Sulfur in. Syukusaburd M inatoya, Itird Aoe, and Idum i N agai.......................................................................................................... 414
S A L T Solutions, Solubility o f C arbon D ioxide in. Confining L iquidsfor G as Analysis. K . A . K obe and J. S. W illiam s. . .................. . 37
Selenite-Phosphatc M ethod for D eterm ining Zirconium in Ores. S.G . Simpson with W . C. S chum b................................................................... 36
S e l e n i u m : . . . .D eterm ination o f—in O rganic M atter. K. T . W illiams and IT. W .
I>akin............................................. _........................... 409D eterm ination of Small Quantities o f— in Sulfur. G. G. M arvin
with W . C. Schum b............................................... 423D eterm ination of T ota l and Free—in Vulcanizates. E . Cheraskova
and L . V eisbrute............................................ r ...........................:•.•••• 497O ccurrence o f— in C olorado R iver and Tributaries. K . T . W illiams
and H . G . B y ers ................................................................................................. • 431Q uantitative D eterm ination o f— on Anim al M atter and Clinical
Test in Urine. II. C . D udley and H . G . B y ers ...................................... 3Sewer Gases. See Gases.Shepherd Apparatus. See Gases.Silica, Free, M odified Petrographic Im mersion M ethod for D eterm i
nation of. H . L . R oss and F. W . Selil............................ ................ ............. 30Silicate R ocks, D eterm ination o f M anganese and M agnesium in
Soils and. L. A . Dean and E . T ru o g ............................................................. 383Silicosis. M odified Petrographic M ethod for D eterm ination of Free
Silica. H . L. R oss and F. W . S e h l . . ............................. t. 30Silver, R ecovery o i— and Iodine from Silver Iodide. J. R . Sp ies 118Silver Iodide. See preceding item.Silver N itrate M ethod, Im provem ent o f— for D eterm ining M ercaptans
in H ydrocarbon Solvents. W . M . M alisoff and C . E . Anding, J r . . . 86
Sirup. Corn, Baum 6-Purity -M oisture Tables for. W . R . Fefcser andJ. W . Evans. (Correction, 126 )................................ 41
Sirup, M aple, Simplified R apid M ethod for D etection of Adulterationin— Based on Electrical C on ductiv ity . Augustus C on lin ................... 426
Sm ith, J. Lawrence, M ethod of. See Fusion.Sodium Cobaltinitrite, D eterm ination o f Small A m ounts o f Potassium
by. H. W. Lohne................................................................................................... 272Sodium -Potassium Alloy. See Alloys.Sodium Thiosulfate, D eterm ination o f A vailable Chlorine in H y p o
chlorite Solutions b y D irect T itration with. V . A . W illson ................. 44S o i l s :
Colorim etric Determ ination of M anganese in— in Presence ofTitanium . G. J. H ough ................................................... 408
Determ ination of Manganese and M agnesium in Silicate R ocks and.L. A. Dean and E. T ru o g ............................................................................. 383
D eterm ination of M olybdenum in Plants and. K . E . Stanfield . . . . 273Occurrence o f Selenium in C olorado R iver and Tributaries. K. T .
W illiams and H. G . B y ers .................................................... 431Solids. Apparatus for E xtraction o f— b y U pw ard Flow o f Solvent. F.
E. H o lm es . .......................... 75Solutions, Q uantitative Analysis o f— by Spcctrographic M eans. O.
S. D uffenaack , F. H. W iley, and J. S. O w ens........................... .................. 410Solutions, R apid M ethod for M aking Standard— of Specified N or
m ality. O tto John son ........................................................................ . . 76Solvents, Identification of— by X anthate R eaction . A pplication to
Alcohols. W . F. W hitm ore and Eugene L ieber ............................. 127Spacu M ethod. See M ercury.S p e c t r o q r a p h i c D e t e r m i n a t i o n s :
A pplication of Spectrograph to D eterm ination o f C arbon in Steel.F. H . E m ery with II. S. B o o th ....................................................... 419
M icrodeterm ination of Zinc by . L . II. R og ers ............................... 421Q uantitative A nalysis of Solutions by . O. S. D uffendack, F . H .
W iley, and J. S. O w ens..................................................................................... 410Q uantitative— of Lead in B iological M aterial. Jacob C h o la k 287S pectrophotom etric D eterm ination o f C opper in Ores and M attes.
J. P. M ehlig ..........................................................................; .............................. 387Spectrophotom etric D eterm ination o f M anganese in Steel. J. P.
M ehlig. (R . II. M üller; M ehlig; C orrespondence, 3 6 1 ) . . . . . . . 27Spray Residues, M odified Fischer-L eopoldi M ethod for D eterm ining
Lead in. O. B . W inter, II. M . R ob inson , F. W . Lam b, and E. J.M iller.................................................................................................................. 265
S t a r c h :D eterm ination of A lkali-L abile Value o f— and— Products. T . C .
T aylor, H . H. Fletcher, and M . H. A dam s. . ......................................... 321D eterm ination o f or-Amylasc. S. Jozsa and W . R . John ston ............. 143Estim ation of. J. T . S ullivan................................................................ 311
S t e e l :A pplication of Spectrograph to D eterm ination of C arbon in . F.
H . Em ery w ith II. S. B o o th ,• •.• : ................................. 419C op pcr-M olybdenum A lloy, C opper D eterm ination b y a-B enzoin
O xim e in. H . A . K a r ................................... . ........................... 193D eterm ination of O xygen and N itrogen in. John Chipm an and
M . G . Fontana.............................................................................. ...................... 391D eterm ination of Sulfur in— b y C om bustion M ethod . H . A . K ar. 244M odified Persulfate-Arsenite M ethod for M anganese in— Analysis.
E. B . Sandell, I. M . K olthoff, and J. J. L ingan e........................ 256Plain and A lloy, Perchloric A cid M odification o f M eineke’s M ethod
of D eterm ining Sulfur in. Louis S ilverm an........................................... 205Rapid M ethod for D eterm ining Sulfur in Ferrom agnetic A lloys. B.
L. Clarke, L . A . W ooten , and C. II. P o tte n g e r ............. ....................... 242Spectrophotom etric D eterm ination o f M anganese in. J. P. M ehlig.
(R . H. M üller; M ehlig ; Correspondence, 3 6 1 )................................... 27Stainless, Etching o f .................................................................... 208
Stibnite Sulfur. See Sulfur.Stills. See D istillation.Stirrer, Sim ple L aboratory— for Use on Vacuum Line. G. T . A ustin . 206Stirring, Air within D esiccators. F. J. Z in k ...................................................... 442Stopper, Em ergency— for N itric A cid Bottles. D arwin Har r i s . . . . . 162Sucrose. See Sugar.S u g a r :
D ouble-A cid M ethod of O ptical Analysis o f B eet Products. S. J.Osborn and J. H. Zisch. (C orrection )..................................................... 95
Tu rbid ity in— Products. II I . T ransm ittancy and Tyndall Beam Intensity o f Solutions of Raw Cane Sugars. F. W . Zerban, LouisSattler, and Irving L orge.................................................................................... 157
W hite, Im purities in. V III . E ffects o f Im purities on D ecom p osition of Sucrose during B arley C andy Test. J. A . A m bler and S.B y a ll.......................................................................................................................... 168
(See aIso Sirup.)Sulfate, B etz-H elligc M ethod for Turbi dim e trie D eterm ination o f— in
W ater, lt. T . Sneen, H. L . K ahler, and E . M . R osb .................................. 262Sulfated A lcohols. See. A lcohols.Sulfated Oils. See Oils.Sulfonated Oils. See Oils.S u l f u r : .
B y-P rod u ct, D eterm ination o f W ater in. Louis S hn idm aii................... 246D eterm ination of Free— in R ubber. A . F. H ardm an and II. E.
B arbehenn.............................................................................................................. 103D eterm ination of Small Q uantities of Selenium in. G . G . M arvin
with W . C . S ch u m b . ............................ 423D eterm ination of S tibnite— in Ores and M inerals. J. A . Tscherni-
k hov and T . A . U spenskaya.............................................................................. 309D eterm ination o f— in Steel by C om bustion M ethod . II. A . K a r . . . 244M odification o f T h iocyanate M ethod for D eterm ining True Free—
in Vulcanized R ubber. Syukusaburö M in atoya, itirö A oe, andIdum i N agai .................................................... 414
Perchloric A cid M odification o f M eineke’s M ethod for D eterm ining— in Plain and A lloy Steels. Louis S ilverm an........................................ 205
R apid M ethod for D eterm ining— in Ferrom agnetic A lloys. B . L.Clarke, L. A . W ooten, and C. II. P otten ger .......................................... 242
Syringe Pi pets. See Pi pets.
T H E R M O C O U P L E S , P latinum , R ecent D evelopm ents in . BertBrenner................... ..................................................................................................... 438
Therm oregulator, Sim ple Ph otoelectric— for O xidation o f O rganic M a terials. W . L . Walsh and N. A. M ilas ........................................................... 122
Th iocyanates, Identification o f H alides in Presence of. G. B . and L.K . I le isig ...................................................................................................................... 249
Tin , Critical S tudy o f Cacotheline for D etection of. I. L. Newell,J. B . Ficklen, and L. S. M axfield. . . . 26
Tires. See Rubber.
452 INDUSTRIAL AND ENGINEERING CHEMISTRY VOL. 7, NO. 6
Titanium , Colorimetric Determ ination of Manganese in Presence of.G . J. H ou gh ................................................................................ .........................
T i t r a t i o n :Brom ide-Broraate, Estim ation o f Unsaturation in A liphatic H ydro
carbons by . S. P. M ulliken and R . L. W akem an..............................Convenient Absorption and— Flask for C arbon D ioxide D eterm i
nation. R obert G ardner................... ..........................................................Determ ination o f Available Chlorine in H ypochlorite Solutions by
D irect— w ith Sodium Thiosulfate. V . A . W illson..............................E lectrom etric. D evice for Autom atically Stopping at Predeter
mined End Point. W . E. Shenk and F . F enw ick..............................E lectrom etric, D evice for H olding Electrodes during. M . L.
H erzog...................................................................................................................Fluorine in Biological M aterials. E . W . Scott and A. L. H e n n e .. . . Potentiom etrie— with Germ anium -Germ anium D ioxide Electrode.
M . L. N ichols and S. R . C oop er................................................................T itrim etric Extraction M ethod for Determ ination of M inute
Am ounts of Lead in Biological M aterials. E . S. W ilkins, Jr., C.E. W illoughby, E. O. Kraemer, and F. L. Smith, 2 n d ....................
Toxicology, M icrochem ical M ethods in. (Abstract, A . O. G e tt le r ). . . Tung Oil. See Oils.Turbidim eter, Photronic Photoelectric— for Determ ining H ydrocyanio
Acid in Solutions. E . T . Bartholom ew and E. C. R a b y .......................Turbidim etric Determination of Sulfate in W ater b y Betz-Hellige
M ethod. R . T . Sheen, H. L. Kahler, and E. M . R o ss ............................Tyndall Beam. See Sugar.
U R E A Nitrogen. See Nitrogen.Uric A cid and Urine. See Biological Materials.Ursolic A cid . M etallic Salts of. H. M . Sell and R. E. Kreroers
V A C U U M -F u aion M ethod. See Fusion.Vacuum Pump Check Valve. See Valve.Vacuum Regulator. See D istillation.Vacuum Stirrer. See Stirrer.Vacuum -Tube Voltm eter. See Voltmeter.Valve, Efficient Check— for Vacuum Pump. R. L. M o b le y ...................Vapor-L iquid Equilibrium Com positions, Apparatus for Study of. R .
M . W iley and E. H . H arder........................................................... ..................Viscom eter, R apid Precision. Ogden FitzSim ons.......................................Volhard M ethod. See Chlorine.Voltm eter, Line-Operated Vacuum -Tube. R . L. Garman and M . E.
D roz .............................................................................................................................
W A S H B ottle for Q uantitative W ork. E. J. deB eer.................................. 67*08 W a t e r :
Application o f Potassium M ethod to Sea— in Volum etric D eterm ination o f Chloride and Potassium Ions. Burlingam e Bullock and
59 p . L. K irk ............................................................................... 178A utom atic Still Cut-O ff. A . H . H ale and F. D . T uem m ler................... 441
437 Betz-Hellige M ethod for Turbidim etric D eterm ination o f Sulfate in.R. T . Sheen, H . L. Kahler, and E. M . R oss ............................................ 262
44 Boron Content o f Sea— of N orth Atlantic C oast. N . W . Rakestrawand H. E. M ahncke........................................................................................... 425
194 C olorim etric Determ ination o f Small Quantities o f Chlorides in.H. B . R iffenburg............. 14
Continuous Production of D istilled— Free from C arbon D iox ide and299 Am m onia. F. G. S traub .................................................................................. 433
D eterm ination of. E . v . M ig ra y ................................... ................................. 348353 D eterm ination o f— and H ydrogen Sulfide in Gas M ixtures. Foster
Fraas and E. P. Partridge............................................................................... 198D eterm ination of— in B y -P rod u ct Sulfur. Louis Shn idm an.... 246
33 Drinking, Determ ination of Fluorine in. H . V . S m ith ................. 2335L Estim ation of Chloram ine in— Supplies. P. D . M cN a m ee........ 333
O ccurrence of Selenium in C olorado R iver and Tributaries. K . T .W illiams and H. G. B y ers ............................................................................... 431
58 Photom etric Investigation o f Ceruleoinolybdate D eterm ination ofPhosphate in. R . J. R obinson and H . E. W irth ................................... 147
-62 Precise D eterm ination of O xygen in— b y Syringe Pipets. AugustK rogh ....................................................................................................................... 131
Sim ple Autom atic C ut-O ff for Electric Stills. M . It. A . R a o andB. S. R a o ............................................................................................................ 377
W ijs Reagent. See Iodine.W ood , E ffect of Pretreatm ents of— on Lignin D eterm ination. G. J.
105 R itter and J. H. B arbour....................................................................................... 238
X A N T H A T E R eaction for Identification of A lcohols. W . F . W h itmore and Eugene -Lieber....................................................................................... 127
Y E A S T , New M ethod for D eterm ining— Invertase A ctiv ity . W . R . Johnston, Sutton R edfern, and G . E . M iller................................................. 82
222
349 Z IN C , Spectrographic M icrodeterm ination of. L. H. R og ers ............... 421345 Zinc Cobaltinitrite for D etection of Potassium . Jane Adam s, M artha
H ail, and W . F. B a iley .......................................................................................... 310Zirconium , Selenite-Phosphate M ethod for D eterm ining— in Ores.
341 S. G . Sim pson with W . C. S chum b.................................................................... 36