INDEX t o VOL. XLVII.

ABNEY (W. de W.) and G. S. Edwards, on the effect of the spec­trum on the haloid salts of silver, 22, 249.

Acton (E. H.) the assimilation of carbon by green plants from certain organic compounds, 150.

Alloys of nickel and iron, magnetic pro­perties of (Hopkinson), 23.

----- the liquation of gold and platinum(Matthey), 180.

Apteryx, observations on the anatomy and development of (Parker), 454.

Atomic weight, the relation of physio­logical action to (Johnstone and Carnelley), 21.

Aurorae and comets, comparison of the spectra of nebulae and stars of groups I and II with those of (Lockyer), 28.

Bakerian lecture (Schuster), 300, 526. Ball, John, obituary notice of, v.Basset (A. B.) on the extension and

flexure of cylindrical and spherical thin elastic shells, 45.

Beevor (0. E.) and V. Horsley, an ex­perimental investigation into the ar­rangement of the excitable fibres of the internal capsule of the bonnet monkey (Macacus sinicus), 21.

Berkeley, Rev. Miles Joseph, obituary notice of, ix.

Bidwell (S.) on the effect of tension upon magnetic changes of length in wires of iron, nickel, and cobalt, 469.

Bile, observations on the secretion of, in a case of biliary fistula (Robson), 499.

----- observations regarding the excre­tion and uses of (Robson), 129.

Bonnet monkey (Macacus sinicus), an experimental investigation into the arrangement of the excitable fibres of the internal capsule of the (Beevor and Horsley), 21.

Boys (C. Y.) on the heat of the moon and stars, 480.

Brain of Clupea harengus, some stages

in the development of the (Holt), 199.

British Isles, preliminary note on sup­plementary magnetic surveys of special districts in the (Rucker and Thorpe), 443.

----------- - the variability of the tempe­rature of the, 1869-1883 inclusive (Scott), 303.

Bryan (Gr. H.) on the stability of a rotating spheroid of perfect liquid, 367.

Calorimeter, on the steam (Joly), 45, 218.Camphor, measurements of the amount

of oil necessary in order to check the motions of, upon water (Rayleigh), 364.

Camphoric acids, researches on the chemistry of the (Marsh), 6.

Candidates for election, list of, 276.Cannizzaro (Stanislao) elected, 1.Carbon, the assimilation of, by green

plants from certain organic com­pounds (Acton), 150.

Carbon flutings in the spectra of celestial bodies, the presence of bright (Lock­yer), 39.

Carnelley (T.) and H. J. Johnstone, the relation of physiological action to atomic weight, 21.

Car us-Wilson (C. A.) the rupture of steel by longitudinal stress, 363.

Castor-oil plant (Ricinus communis), on the germination of the seed of the (Grreen), 146.

Cervical ganglion, on the progressive paralysis of the different classes of nerve-cells in the superior (Langley and Dickinson), 379.

Chauveau (Auguste) elected, 1.Chree (C.) on the effects of pressure on

the magnetisation of cobalt, 41.Christie (W. H. M.) elected a member

of council, 142.Ciliary or motor oculi ganglion, on the

development of the (Ewart), 287.Clupea harengus, some stages in the

development of the brain of (Holt), 199.

d

XX INDEX.

Coal-measm*es, on the organisation of the fossil plants of the. Part XVII (Williamson), 294.

Cobalt, on the effects of pressure on the magnetisation of (Chree), 41.

Cobalt, nickel, and iron, on the effect of tension upon magnetic changes of length in wires of (Bidwell), 469-.

------------------- the internal friction of,studied by means of magnetic cycles of very minute range (Tomlinson), 13.

Cobbold (Dr.) obituary notice of, iy.Colour-blindness and colour-perception,

a new theory of (Edridge-Green),176.Comets and aurorae, comparison of the

spectra of nebulae and stars of groups I and II with those of (Lockyer), 28.

Conroy (Sir J.) some observations on the amount of luminous and non-lumin- ous radiation emitted by a gas flame, 41, 55.

Council, ballot for a member of, 137, 142.

Crangon vulgaris, the variations occur­ring in (Weldon), 445.

Cranial nerves of the torpedo, the. Pre­liminary note (Ewart), 290.

Croonian lecture (Ward), 213, 393.Crustacea, the variations occurring in

certain decapod.—I. Crangon vul­garis (Weldon), 445.

Cyanogen reaction of proteids, a (Gnezda), 202.

Cylindrical and spherical thin elastic shells, on the extension and flexure of (Basset), 45.

Cystin, on a fermentation causing the separation of. Preliminary commu­nication (Delepine), 198.

Delepine (S.) on a fermentation causing the separation of cystin. Preliminary communication, 198.

Dickinson (W. L.) and J. N. Langley, on the progressive paralysis of the different classes of nerve cells in the superior cervical ganglion, 379.

Digestions, a comparative study of natural and artificial. Preliminary account (Lea), 192.

Downing (Capt.) notes on some peculiar relations which appear in the great pyramid from the precise measure­ments of Mr. Flinders Petrie, 459.

Edridge-Green (F. W.) a new theory of colour-blindness and colour-percep­tion, 176.

Edwards (G. S.) and W. de W. Abney, on the effect of the spectrum on the haloid salts of silver, 22, 249.

Electric discharge between electrodes at different temperatures in air and in high vacua, on (Fleming), 118.

Electricity, a determination of “ v,” the ratio of the electromagnetic unit of, to the electrostatic unit (Thomson and Searle), 376.

----- the discharge of, from glowingmetals (Stanton), 559.

------------ through gases. Preliminarycommunication, — Bakerian lecture (Schuster), 300, 526.

Equations, memoir on the symmetrical functions of the roots of systems of (MacMahon), 176.

Ewart (J. C.) on the development of the ciliary or motor oculi ganglion, 287..

----- the cranial nerves of the torpedo.Preliminary note, 290.

Ferment, the nitrifying process and its specific (Frankland and Frankland), 296.

Fermentation causing the separation of cystin, on a. Preliminary communi­cation (Delepine), 198.

Fistula, observations on the secretion of bile in a case of biliary (Robson), 499.

Fixation of free nitrogen, new experi­ments on the question of the. Pre­liminary notice (Lawes and Gilbert), 85.

Fleming (J. A.) on electric discharge between electrodes at different tem­peratures in air and in high vacua, 118.

Foreign members elected, 1.Fossil plants of the coal-measures, on

the organisation of the. Part XYII (Williamson), 294.

Frankland (P. F.) and G. C. Frank­land, the nitrifying process and its specific ferment, 296.

Free stream lines, the theory of (Michell), 129.

Friction, internal, of iron, nickel, and cobalt, studied by means of magnetic cycles of very minute range (Tomlin­son), 13.

Ganglion, on the development of the ciliary or motor oculi (Ewart), 287.

-----• on the progressive paralysis of thedifferent classes of nerve cells in the superior cervical (Langley and Dick­inson), 379.

Gas flame, some observations on the amount of luminous and non-lumin- ous radiation emitted by a (Conroy), 41, 55.

INDEX. XXI

Gemination of the seed of the castor- oil plant (Ricinus communis), on the (Green), 146.

Gilbert (J. H.) and Sir J. B. Lawes, new experiments on the question of the fixation of free nitrogen. Pre­liminary notice, 85.

Gnezda (J.) a cyanogen reaction of proteids, 202.

Gold and platinum alloys, the liquation of (Matthey), 180.

Green (F. W. E.) See Edridge-Green.Green (J. R.) on the germination of the

seed of the castor-oil plant {Ricinus communis), 146.

Haloid salts of silver, on the effect of the spectrum on the (Abney and Edwards), 22, 249.

Harcourt (L. F. V.) See Vernon- Harcourt.

Heat of the moon and stars, on the (Boys), 480.

Holt (E. W. L.) some stages in the development of the brain of Clupea harengus, 199.

Hopkinson (J.) magnetic properties of alloys of nickel and iron, 23.

----- physical properties of nickel steel,138.

Horsley (V.) and C. E. Beevor, an ex­perimental investigation into the ar­rangement of the excitable fibres of the internal capsule of the bonnet monkey (Macacus sinicus), 21.

Host and parasite, the relations between, in certain epidemic diseases of plants, —Croonian lecture (Ward), 213, 393.

Hughes (T. McKenny) admitted, 1.Hunt (Robert) obituary notice of, i.

Internal capsule of the bonnet monkey, an experimental investigation into the arrangement of the excitable fibres of the (Beevor and Horsley), 21.

Iron and nickel, magnetic properties of alloys of (Hopkinson), 23.

Iron, nickel, and cobalt, on the effect of tension upon magnetic changes of length in wires of (Bidwell), 469.

------------------ the internal friction of,studied by means of magnetic cycles of very minute range (Tomlinson),

Johnstone (II. J.) and T. Carnelley, the relation of physiological action to atomic weight, 21.

Joly (J.) observations on the spark dis­charge, 67.

- on the steam calorimeter, 45, 218.

Kane (Sir Robert John) obituary notice of, xii. *

Langley (J. N.) and W. L. Dickinson, on the progressive paralysis of the different classes of nerve cells in the superior cervical ganglion, 379.

Lawes (Sir J. B.) and J. H. Gilbert, new experiments on the question of the fixation of free nitrogen. Pre­liminary notice, 85.

Lea (A. S.) A comparative study of natural and artificial digestions. Pre­liminary account, 192.

Light, remarks on Mr. A. W. Ward’s paper on the magnetic rotation of the plane of polarisation of, in doubly refracting bodies (Wiener and Wed­ding), 1.

Liquation of gold and platinum alloys, the (Matthey), 180.

Liquid, on the stability of a rotating spheroid of perfect (Bryan), 367.

Liquid surfaces, on the tension of recently formed (Rayleigh), 281.

Lockyer (J. N.) comparison of the spectra of nebulae and stars of groups I and I I with those of comets and aurorae, 28.

----- note on the spectrum of thenebula of Orion, 189.

----- on the chief line in the spectrumof the nebulae, 129.

----- preliminary note on photographsof the spectrum of the nebula in Orion, 189.

----- the presence of bright carbonflutings in the spectra of celestial bodies, 39.

Macacus sinicus, an experimental inves­tigation into the arrangement of the excitable fibres of the internal capsule of the bonnet monkey (Beevor and Horsley), 21.

MacMahon (P. A.) memoir on the symmetrical functions of the roots of systems of equations, 176.

Magnetic changes of length in wires of iron, nickel, and cobalt, on the effect of tension upon the (Bidwell), 469.

----- induction (Tomlinson), 13.----- properties of alloys of nickel and

iron (Hopkinson), 23.----- rotation of the plane of polari­

sation of light in doubly refract­ing bodies, remarks on Mr. A. W. Ward’s paper on the (Wiener and Wedding), 1.

----- surveys of special districts in theBritish Isles, preliminary note on

il 2

x x i i INDEX.

supplementary (Rucker and Thorpe), 443. *

Magnetisation of cobalt, on the effects of pressure on the (Chree), 41.

Mallet (J. W.) on a second case of the occurrence of silver in volcanic dust, namely, in that thrown out in the eruption of Tunguragua, in the Andes of Ecuador, January lltli,1886, 277.

Mammalian spinal cord, on outlying nerve-cells in the (Sherrington), 144.

Marsh (J. E.) researches on thechemistry of the camphoric acids, 6.

Matthey (E.) the liquation of gold and platinum alloys, 180.

Mersey, investigations into the effects of training walls in an estuary like the ( Vernon-Harcourt), 142.

Metals, the discharge of electricity from glowing (Stanton), 559.

Michell (J. H.) the theory of free stream lines, 129.

Milk dentition in Orycteropus, a (Thomas), 126, 246.

Moon and stars, on the heat of the (Boys), 480.

Napier of Magdala, Lord, obituary notice of, ii.

Nebula in Orion, preliminary note on photographs of the spectrum of the (Lockyer), 189.

----- of Orion, note on the spectrum ofthe (Lockyer), 189.

Nebulse, on the chief line in the spec­trum of the (Lockyer), 129.

----- and stars of groups I and II,comparison of the spectra of, with those of comets andaurorse (Lockyer), 28.

Nerve-cells, on the progressive paralysis of the different classes of, in the supe­rior cervical ganglion (Langley and Dickinson), 379.

----- ----- in the mammalian spinalcord, on outlying (Sherrington), 144.

Nickel and iron, magnetic properties of alloys of (Hopkinson), 23.

Nickel, cobalt, and iron, on the effect of tension upon magnetic changes of length in wires of (Bidwell), 469.

------------------- the internal friction of,studied by means of magnetic cycles of very minute range (Tomlinson), 3.3.

Nickel steel, physical properties of (Hopkinson), 138.

Nitrifying process and its specific fer­ment, the (Frankland and Erankland), 296.

Nitrogen, new experiments on the

question of the fixation of free. Pre­liminary notice (Lawes and Gilbert), 85.

Obituary notices:—Ball, John, v.Berkeley, Rev. Miles Joseph, ix. Cobbold, Dr., iv.Hunt, Robert, i.Kane, Sir Robert John, xii.Napier of Magdala, Lord, ii.

Oil, measurements of the amount of, necessary in order to check the motions of camphor upon water (Rayleigh), 364.

Organic compounds, the assimilation of carbon by, green plants from certain (Acton), 150.

Orion, note on the spectrum of the nebula of (Lockyer), 189.

----- preliminary note on photographsof the spectrum of the nebula in (Lockyer), 189.

Orycteropus, a milk dentition in (Thomas), 126, 246.

Paralysis of the different classes of nerve- cells in the superior cervical ganglion, on the progressive (Langley and Dickinson), 379.

Parker (T. J.) observations on the ana­tomy and development of Apteryx> 454.

Photographic method for determining; variability in stars, on a (Roberts), 137.

Photographs of the spectrum of the nebula in Orion, preliminary note on (Lockyer), 189.

Photometer, a compound wedge (Spitta), 15.

Physical properties of matter, the in­fluence of stress and strain on the. Part III. Magnetic induction {con­tinued) (Tomlinson), 13.

Physiological action, the relation of, to atomic weight (Johnstone and Car- nelley), 21.

Plants, assimilation of carbon by green, from certain organic compounds (Acton), 150.

----- fossil, of the coal-measures, on theorganisation of the. Part XVII (Wil­liamson), 294.

----- the relations between host andparasite in certain epidemic diseases of,—Croonian lecture (Ward), 213, 393.

Platinum and gold alloys, the liquation of (Matthey), 180.

Pneumatic analogue of the Wheatstone bridge, on a (Shaw), 462.

INDEX. XX111

Polarisation of light, remarks on Mr. A. W. Ward’s paper on the magnetic rotation of the plane of, in doubly refracting bodies (Wiener and Wed­ding), 1.

Presents, list of, 18, 25, 49, 126, 133. 140, 148, 178, 189, 210, 216, 292,298, 300, 390, 459, 524.

Proteids, a cyanogen reaction of (G-nezda), 202.

Pyramid, notes on some peculiar rela­tions which appear in the great, from the precise measurements of Mr. Flinders Petrie (Downing), 459.

Radiation emitted by a gas flame, some observations on the amount of luminous and non-luminous (Con­roy), 41, 55.

Eayleigh (Lord) measurements of the amount of oil necessary in order to check the motions of camphor upon water, 364.

----- on the tension of recently formedliquid surfaces, 281.

Eeinold (A. W.) and A. W. Pucker, on

the germination of the seed of the castor-oil plant (Green), 146.

Roberts (I.) on a photographic method for determining variability in stars,137.

Robson (A. W. M.) observations on the secretion of bile in a case of biliary fistula, 499.

----- observations regarding the excre­tion and uses of bile, 129.

Rotating spheroid of perfect liquid, on the stability of a (Bryan), 367.

Rowland (Henry A.) elected, 1.Rucker (A. W.) and A. W. Rein old, on

black soap films, 303.----- and T. E. Thorpe, preliminary note

on supplementary magnetic surveys of special districts in the British Isles, 443.

Scale, on the unit of length of a stand­ard, by Sir George Shuckburgh, apper­taining to the Royal Society (Walker), 186.

Schuster (A.) the discharge of electricity through gases. Preliminary commu­nication,—Bakerian lecture, 300, 526.

Scott (R. H.) the variability of the tem­perature of the British Isles, 1869- 1883, inclusive, 303.

Searle (G. F. C.) and J. J. Thomson, a determination of “ v,” the ratio of the electromagnetic unit of electricity to the electrostatic unit, 376.

black soap films, 303 Ricinus communis, on

Shaw (W. N.) on a pneumatic analogue of the Wheatstone bridge, 462.

Shells, on the extension and flexure of cylindrical and spherical thin elastic (Basset), 45.

Sherrington (C. S.) on outlying nerve- cells in the mammalian spinal cord, 144.

Shuckburgh (Sir George) on the unit of length of a standard scale by, apper­taining to the Royal Society (Walker), 186.

Silver, effect of the spectrum on the haloid salts of (Abney and Edwrards), 22, 249.

Silver in volcanic dust, on a second case of the occurrence of, namely, in that thrown out in the eruption of Tungu- ragua, in the Andes of Ecuador, January 11th, 1886 (Mallet), 277.

Soap films, on black (Reinold and Rucker), 303.

Spark discharge, observations on the (Joly),67.

Spectra of celestial bodies, the presence of bright carbon flu tings in the (Lockyer), 39.

----- of nebulae and stars of groups Iand II, comparison of the, with those of comets and aurorae (Lockyer), 28.

Spectrum, on the effect of the, on the haloid salts of silver (Abney and Edwards), 22, 249.

----- of the nebula in Orion, preliminarynote on photographs of the (Lockyer), 189.

----- of the nebula of Orion, note onthe (Lockyer), 189.

----- of the nebulae, on the chief line inthe (Lockyer), 129.

Spheroid of perfect liquid, on the sta­bility of a rotating (Bryan), 367.

Spinal cord, on outlying nerve-cells in the mammalian (Sherrington), 144.

Spitta (E. J.) a compound wedge photo­meter, 15.

Stanton (A.) the discharge of electricity from glowing metals, 559.

Stars, on a photographic method for determining variability in (Roberts), 137.

----- on the heat of the moon and(Boys), 480.

----- and nebulae of groups I and II,comparison of the spectra of, with those of comets and aurorae (Lockyer), 28.

Steam calorimeter, on the (Joly), 45, 218.

Steel, the rupture of, by longitudinal stress (Carus-Wilson), 363.

x x i v INDEX.

Stream lines, the theory of free (Michell), 129.

Stress, the rupture of steel by longi­tudinal (Carus-Wilson), 363.

Stress and strain, the influence of, on the physical properties of matter. Part III. Magnetic induction (con­tinued) (Tomlinson), 13.

Symmetrical functions of the roots of systems of equations, memoir on the (MacMahon), 176.

Temperature of the British Isles, 1869- 1883, inclusive, the variability of the (Scott), 303.

Tension, on the effect of, upon mag­netic changes of length in wires of iron, nickel, and cobalt (Bidwell), 469.

----- of recently formed liquid surfaces,on the (Rayleigh), 281.

Thomas (O.) a milk dentition in Orycter- opus, 126, 246.

Thomson (J. J.) and Gr. F. C. Searle, a determination of “ v ” the ratio of the electromagnetic unit of electricity to the electrostatic unit, 376.

Thorpe (T. E.) and A. W. Rucker, pre­liminary note on supplementary mag­netic surveys of special districts in the British Isles, 443.

Tomlinson *(H.) the influence of stress and strain on the physical properties of matter. Part III. Magnetic induc­tion (continued). The internal fric­tion of iron, nickel, and cobalt, studied by means of magnetic cycles of very minute range, 13.

Torpedo, the cranial nerves of the. Pre­liminary note (Ewart), 290.

Training walls, investigations into the effects of, in an estuary like the Mer­sey (Vernon-Harcourt), 142.

Tunguragua, in the Andes of Ecuador, January 11th, 1886, on a second case of the occurrence of silver in volcanic dust, namely, in that thrown out in the eruption of (Mallet), 277.

Unit of length of a standard scale by Sir Greorge Shuckburgh, appertaining to the Royal Society, on the (Walker), 186.

“ V,” a determination of, the ratio of the electromagnetic unit of electricity to the electrostatic unit (Thomson and Searle), 376.

Variability in stars, on a photographic ? method for determining (Roberts), 137.

Variations occurring in certain decapod Crustacea. I. Crangon vulgaris (Weldon), 445.

Vernon-Harcourt (L. F.) investigations into the effects of training walls in an estuary like the Mersey, 142.

Vice-Presidents, appointment of, 1.Volcanic dust, on a second case of the

occurrence of silver in, namely, in that thrown out in the eruption of Tunguragua, in the Andes of Ecuador, January 11th, 1886 (Mallet), 277.

Walker (J. T.) on the unit of length of a standard scale by Sir Greorge Shuck­burgh, appertaining to the Royal Society, 186.

Ward (H. M.) the relations between host and parasite in certain epidemic diseases of plants,—Croonian lecture, 213, 393.

Ward’s (A. W.) paper on the magnetic rotation of the plane of polarisation of light in doubly refracting bodies, remarks on (Wiener and Wedding), 1.

Wedding (W.) and O. VTiener, remarks on Mr. A. W. Ward’s paper ‘ on the magnetic rotation of the plane of polarisation of light in doubly refract­ing bodies,’ 1.

Wedge photometer, a compound (Spitta), 15.

W eld o n (W. F. R.) th e variations occurring in certain decapod Crustacea.I. Crangon vulgaris, 445.

Wheatstone bridge, on a pneumatic analogue of the (Shaw), 46S.

Wiener (O.) and W. Wedding, re­marks on Mr. A. W. Ward’s paper ‘ on the magnetic rotation of the plane of polarisation of light in doubly refracting bodies,’ 1.

Williamson (W. C.) on the organisation of the fossil plants of the coal- measures. Part XVII, 294.

Wilson (0. A. C.). See Carus-Wilson.

END OF FORTY-SEVENTH VOLUME.

HARRISON AND SONS, PRINTERS IN ORDINARY TO HER MAJESTY, ST. MARTIN’S LANE.

* / ()