Back Matter

Back MatterSource: Proceedings of the Royal Society of London. Series A, Containing Papers of aMathematical and Physical Character, Vol. 102, No. 719 (Mar. 1, 1923)Published by: The Royal SocietyStable URL: http://www.jstor.org/stable/94195 .

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MUINUTTES OF -MEETINGS.-SESSION 1921-22.

November 2, 1922.

Sir CIIAjI1LES SHERRINGTON, President, in the Chlair.

The following papers wvere read:

I. "Polarization of the Light Scattered by MAercurly Vapour iiear the Resonance Periodicity." By LOR,.D RAYLEIGCH, F.R.S.

II. "The Scattering of Hydrogeni Positive Rays and the Existence of a Powerful Field of Force itn the Hydrogen Molecule." B1y C. P. THOMiSO-N-. Communieated by Sir J. J. THOMASON, F.P.S.

Itl. "A New Method for Studying Ionizing Potentials." By H. D. SMYTH. Communicated by Sir ERINEST RXUTHERFORD, F.R.S.

IV. "Variation of the Intensity of Reflected X-Radiation- with the Temperature of the Crystal." Bv I. BA.CK11URST1. Coiln- rnlunlicatedI by Sir VWILLIAM BRTAGG, F.R.S.

V. " Tlle Absorption Spectrum of Potassium Vapour." By S. -DATTA. Communiicfated by Prof. A. FOWLER, F.R.S.

VI. "The Molecular Scattering of Light in Vapours anid in Liquids, and its Relation to the Opalescence observed in the Critical State." By K. R. RAMANATHA-INN. Commtunicated by Dr. G. T. WTALKER, F.R.S.

Aov6vmbebr 9, 19224

Sir CHARLES SHERRINGTON, President, in the Chair.

In pursuance of the Statutes, notice of the ensuing Aiiniversary Meeting was giveen from the Chair.

The following papers were read: I. "Studies on Enizyme Action. XNXIII.-Homo- and Hetero-lytic

Enzymes." By Prof. H. E. ARMASTRONG, F.R.S.

II. "The Oxygen-dissociationi Curve of Blood anid its Thermo- dyvnamical Basis." By Prof. A. V. HILL, F.R.S., and WT. E. L. BROWN.

III. "The Velocity with which CO replaces Oxygen froom its Com- binationi with Ha,,moglobin.-Parts I and II." By H. HAETRIDGE, M.D., and, F. J. WT. ROUGHTON. Coiiimmunicated by Prof. F. G. HOPKINS, F.R.S.



IN-. " Studies on Iinternal Secretion.-I. The Effect of Pituitary (Anterior Lobe) Injection upon Nornial ard Thyroidectomised Axolotls." By L. T. HOGRIEN. Conmmunicated by Prof. E. WT. MlACBR1IDE, F.).S.

V. "The Pigmentarv EfTector System.-II." By L. T. HOCGBcEN'

andF . L. WINTON. Commuricated by Prof. E. W. AACBRI-D, F11,. S.

VT. FiFurther Observations oin a Bacteriolytic Elenlement found in Tissues and Secretions." By A. F.iE:MNGT and V. D. ALLASON.

Coiimmunicated by Sir AIMUROTH Wr,IcGRHT, F.R.S.

NV,ovemnber) 16, 1922.


In pursu-iance of the Statutes, notice of the ensuing AnniiversarY Mceting was giiven frOm the Chair.

Tr-le followin1g papers were r-ead:

1. "The Propagation of Gravitational Waves." By A. S. EDDINCTON,

F.RLS. Hi. " The Theory of the Scatterin1g of Y- an d /3-ays.B" By J. H. J E ANS,

D.Sc., Sec. RP.S. 1II. "On the Richardson Gyroimagnetic Ef Beet." Ay f\. P. CHATTOCK,

F.R.S., and L. F. BATES. IV. "On the Analysis of a-Ray Photographs." By P1. M. S. Br,ACKETT.

Commurnicated by Sir' ERNTEST RUTIIER,FORD, F.R,.S.-

V. "The Kinetic Energy of Electrons emitted fromxl a Hot Tungste- Filament." By J. H. JONES. Conimunicated by Prof. 0. Wl rtichardson, F.R.S.

VI. "The Quantum Theory and Electromagnetic Phenomena." By W. WILSON, D.Sc. Coinmunicated by Prof. J. W. NiCmoi- SON, F.R.S.

ViL "On Mlleasurements of Electrode Potential i)rop with Direct Current and Alternating Currenit Electrolysis." By S. MARSTI and A. E. EVANS. Communiicated by Dr. E. H. GRIFFITHS-

F.R.S.

NlTovember 23, 1922.


A Special General Meeting of the Society was held to receive the ninual Pteport of Council.



November 23, 1922.

Sir CHARLES SIIERRINGTON, President, in the Chair.

In pursuanice of the Statutes, notice of the ensuing Anniversary Meeting was given from the Chair, and the List of Officers and Council rnominated for election was read as follows:-

President.-Sir Charles Scott Sherrington, G.B.E., M.D., Sc.D.

Treasutrer.-Sir David Praii, C.M.G., C.ILE.

SecXetctriesW William BEate Hardy, M.A. SJames Hopwood Jeans, I.A., D).Sc., LL.D.

Foreign Secretary.-Sir Arthur Schuster, Sc.D.

Other M1embers of the Cotuncil.-Prof. Vernon HIerbert Blackmain, Sc.D.; Prof. Henry Cort Harold Carpenter, M.A.; Prof. Thomas Rienton Elliott, M.D.; Prof. Arthur Harden, D.Sc.; Sir Sidney Frederic Harmer, K.B.E., Sc.D.; Prof. William Mitchinson Hicks, M.A.; Prof. Hugh Frank Newall, M.A.; Prof. George Henry Falkiner Nuttall, Sc.D).; Prof. Diarmid Noel Paton, M.D.; The Lord Rayleigh, Sc.D.; Prof. Owen Willans Richardson, D.Sc.; Sir Ernest Rutherford, D.Sc.;. .Dr. Alexander Scott; Frank Edward Smith; Sir Aubrey Strahan, K.B.E., Sc.D.; Prof. Jamies Thomas Wilson, M.B.

The followiilg papers were read:

I. "On the Characteristics of Cylindrical Journal Lubrication at High Values of the Eccentricity." By Dr. T. E. STANTON, F.R.S.

TI. "The Propagation of Earthquake Waves." By J. H. JEANS,, Sec. R.S.

III. "A Theory of Mleteors and the Density and Temperature of the Outer Atmosphere to which it Leads." By Prof. F. A.. LINDEMANN, F.R.S., and G. M. B. DOBSON.

IV. "On the Changes in Iron and Steel at Temperatures below 2800 C." By Prof. F. C. THOMPSON and E. WHIITEHEAD. Communicated by Prof. H. C. H. CARPENTER, F.R.S.

V. "The Fatigue Failure of Metals." By C. F. JENKIN. Com- municated by Sir ALFR-ED EwINTG, F.R.S.

VI. " The Line of Action of tlle Resultant Pressure in Discontinuous. Fluid Motion." By S. BRODETSKY. Commuinicated by Sir GEORGE GREENHILL, F.R.S.

VII. "An Investigatiori of the Colour Vision of 527 Students by the. Rayleigh Test." By Dr. R. A. HOUSTOUN. Communicated by Prof. A. GRAY, F.R.S.



Novernber 23, 1922.


In pursuance of the Statutes, notice of the ensuing Anniversary Meeting was given from the Chair, and the List of Officers and Council nominated for election was read as follows:-

President.-Sir Charles Scott Sherrington, G.B.E., M.D., Sc.D.

Treaserer.-Sir David Prain, C.M.G., C.I.E.

Secretaries.- William Bate iardy, M.A. James Hopwood Jeans, M.A., D.Sc., LL.D.

Foreign Secretlry.-Sir Arthur Schuster, Sc.D.

Other Menmbers of the Council.-Prof. Vernon Herbert Blackman, Sc.D.; Prof. Henry Cort Harold Carpenter, M.A.; Prof. Thomas Renton Elliott, M.D.; Prof. Arthur Harden, D.Sc.; Sir Sidney Frederic Harmer, K.B.E., Sc.D.; Prof. William Mitchinson Hicks, M.A.; Prof. Hugh Frank Newall, I.A.; Prof. George Henry Falkiner Nuttall, Sc.D.; Prof. Diarmid No6l Paton, M.D.; The Lord Rayleigh, Sc.D.; Prof. Owen Willans Richardson, D.Sc.; Sir Ernest Rutherford, D.Sc.; Dr. Alexander Scott; Frank Edward Smith; Sir Aubrey Strahan, K.B.E., Sc.D.; Prof. James Thomas Wilson, M.B.

The following papers were read

I. "On the Characteristics of Cyliiidrical Journal Lubrication at High Values of the Eccentricity." By Dr. T. E. STANTON, F.R.S.

II. "The Propagation of Earthquake Waves." By J. H. JEANS, Sec. R.S.

III. "A Theory of Meteors and the Density and Temperature of the Outer Atmosphere to which it Leads." By Prof. F. A. LINDEMANN, F.R.S., and G. M. B. DoBSON.

IV. "On the Changes in Iron and Steel at Temrperatures below 2800 C." By Prof. F. C. THOMPSON and E. WHITEHEAD. Communicated by Prof. H. C. H. CARPENTER, F.R.S.

V. "The Fatigue Failure of Metals." By C. F. JENKIN. Con- municated by Sir ALFRED EWING, F.R.S.

VI. " The Line of Action of the Resultant Pressure in Discontinulous Fluid Motion." By S. BRODETSKY. Communicated by Sir GEORGE GREENHILL, F.R.S.

VII. "An Investigationi of the Colour Vision of 527 Studenits by the Rayleigh Test." By Dr. R. A. HOUSTOUN. Communiicated by Prof. A. GRAY, F.R.S.

a



Novemnber 30, 1922.

ANNIVERSARY MEETING.


The Report of the Auditors of the Treasurer's accounts was -read, and the thanks of the Society were given to the Treasurer and to the Auditors.

The List of Fellows deceased and the List of Fellows elected into the Society since the last Anniversary were read.

The Report to the Society from the Council, upon the work during the past year, was, upon the motion of the President, received.

The President delivered his Anniversary Address. On the motion of Sir W. Leishman, seconded by Prof. Graham Kerr, the thanks of the Society were voted to the President for his Address, and he was requested to allow it to be printed.

The Awards of the Medals for the year were announced as follows, and the Medals were presented from the Chair:

The Copley Medal ............ To Sir Ernest Rutherford. The Rumford Medal .........,, Prof. Pieter Zeemani. A Royal Medal ............... ,, Mr. Joseph Barcroft. A Royal Medal ........... ,, Mr. C. T. R. Wilson. The Davy Medal ..... ..... Prof. Jocelyn Thorpe. The Darwin Medal .........,, Prof. R. C. Punnett. The Buchanan Medal ...... Sir David Bruce. The Sylvester Medal ...... Prof. T. Levi-Civita. The Hughes Medal ........ ,, Dr. F. W. Aston.

The President haviing, with the consent of the Society, nominated Dr. Bateson and Prof. Halliburtonl as Scrutators to examine the balloting lists for the election of Council and Officers, the votes of the Fellows present were taken.

The Scrutators reported that the Couincil and Officers nominated at the preceding meeting had been duly elected.

The thanks of the Society were given to the Scrutators.

Decemnber 7, 1922.

Sir CHARLES SIERRINGTON, President, in the Chair.

The following Papers were read: I. " Spectrum of Active Nitrogen as affected by Admixture of the

Inert Gases." By LORD RAYLEIGH, F.R.S.



II. "Changes in the Charge of an a-Particle passing through Matter." By G. H. HENDERSON, Ph.D. Communicated by Sir ERNEST RUTHERFORD, F.R.S.

III. "The Crystallinie Structure and Properties of Tartaric Acid." By W. T. ASTBURY. Commuinicated by Sir WILLIAM BRAGG, F.R.S.

IV. "Sources of Error in the Measurement of the Electrical Charge of Colloidal Particles by the Method of Moving Boundaries." By J. N. MUKHERJEE. Communicated by Prof. F. G. DONNAN, F.R.S.

V. " The Significance of the Electrode Potential." By J. HEYROVSKfr. Communicated by Prof. F. G. DONNAN, F.R.S.

VI. "On the Quanitum Theory of the Simple Zeeman Effect." 'By A. M. MOSHARRAFA. Communiicated by Prof. 0. W. RICHARDSON, F.R.S.

VII. " Discontinuous Fluid Motion past Circular and Elliptic Cylinders." By S. BRODETSKY. Communicated by Prof. G. H. BRYAN, F.R.S.

The Society adjourned over the Christmas Rtecess to January 18, 1923.

January 18, 1923.

Sir CHARLES SHERRINGTON, President, in the Chair. In pursuance of the Statutes the names of the Candidates proposed

for election into the Society were read as follows:- Abell. Sir VVestcott Stile. Adrian, Edgar Douglas. Allen, Herbert Stanley. Arkwright, Joseph Arthur. Ashley, Sir William. Atkins, William Ringrose Gelston. Balfour, Andrew. Balfour, Henry. Balls, William Laurence. Barnard, Joseph Edwiin. Barr, Archibald. Beattie, James Martin. Bedson, Peter Phillips. Bond, Charles John. Borradaile, Lancelot Alexander. Brown, Thomas Graham. Browning, Carl Hamilton. Bury, Henry. Cheeseman, Thomas F. Christophers, Samuel Rickard.

Davidson, Charles Rundle. Denny, Sir Archibald. Desch, Cecil H. Dreyer, John L. E. Duerden, James Edwin. Edgeworth, Francis Henry. Edridge-Green, Frederick William. Eltringham, Harry. Evans, C. Lovatt. Fawcett, Edward. Flack, Martin William. Fleming, Alexander. Francis, Francis Ernest. Freeth, Francis Arthur. Gardner, John Addyman. Gemmill, James Fairlie. Gibson, Walcot. Goodwin, Sir George Goodwin. Gordon, Mervyn Henry. Griffiths, Ezer.

a 2



Groom, Percy. Gunn, Jamnes Andrlew. Harmer, Frederic Williamn. Hartley, Harold. Hendersoni, Sir James B. Herring, Percy Theodore. Hill, Thomas GCeorge. Hilton, Harold. Horton, Frank. Eouston, Alexander Cruikshank. Howe, George \WTiliam 0. Hunter, James de Graaff. Hurst, Harold Edwill. Imms, Augustus Daniel. Jeffrey, Edward Charles. Jeifreys, Harold. Jehu, Thomas John. Jenkin, Charles Frewen. Johnstone, James. Jones, Frederic Wood. Jones, Oweni Thomas, Kendall, Percy Fry. King, Louis V. Lake, Philip. Lang, William Dickson. Leiper, Robert Thomson. Lewis, William C. McCullagh. Lowe, Percy Roycroft. McBain, James William. McCarrison, Robert. MacLeod, John J. Rickard. Mallik, Devendra Nath. Marshall, Guiy Anstruther Knox. Maw, Williamn Henry. Mawson, Sir Douglas. Meakins, Jonathan Campbell. Mellanby, Edward. Mlills, William Hobson.

Milroy, Thomas Hlugh AMoir, James Reid. Alordell, Louis Joel. Mummery, J. Howard. Newtoni, Richard Bullen. Oxley, Arthur Ernest. Patterson, Thomnas Stewart. Pidduck, Frederick Bernarld. Plaskett, John Stanley. Plimmer, Robert Henrv Adens. Price, Thomas Slater. Procter, Heniry Richardson. Ramani, Chanidrashekara 'V. Richardson, Lewis Fry. Ritchie, James. Rogers, Leonard Jamles. Russell, Alexanider. Schryver, Samuel Barnett. Shaw, Philip Egerton. Silberrad, Oswald. Simonsen, John Lioniel. Skeats, Ernest Willingtoni. Smith, George Frederick H. Smlith, Heniry George. Smith, Sir William Edward. Spearman, Charles. Spencer, Leonard James. Stopford, John Sebastian Bach. Tillyard, Robin John. Troup, Robert Scott. Walker, Ernest Williami A. Wenyoii, Charles Morley., Werner, Emil Alphonse. Wheeler, Richard Vernon. Whiddinigton, Richard. WilsoIn, Ernest. Wilson, Williami. Wolf, Charles G. L.

The following Papers were read

1. " Observations oIn the Effect of High Altitude on the Physiological Processes of the Human Body. (Report to the Perti I-High- Altitude Committee.)" By J. BARCU:OFT, F.RS., and others.

II. "Remarks on the I-nheritance of Acquired Characters." (Verbal communication only.) By Prof. E. W. M+ACBRIDE, F.R.S.

III. " Baluchitheriumn osborni (? syn. Iuclricolherhio turgaicum, Borris- syak)." By C. F. COOPER. CommlUnicated by Dr. A. S. WOODWARD, F.R.S.



IV. " The Sympathetic Innervation of the Vagina." By J. A. GUNN and K. J. FRANKLIN. Communicated by Sir C7ARLES SHER:RINGTON, P.R.S.

V. "On the Metabolic Gradient of the Frog's Egg." By H. G. CANNON. Communicated by Prof. E. W. MAcBRIDE, F.R.S.

VI. "On the Relation between Permeability Variation and Planit Movements." By Mr. BASISWAR SE1N. Communicated by Sir WILLIAM BAYLISS, F.R.S.

VII. "An Inquiry into an Outbreak of Human Trypanosomiasis in c ' Glossina morsitans' Belt to the East of Mwanza, Tanganyika Territory." By H. L. DUKE, M.D. Communicated by Mr. C. DOBELL, F.R.S.

VIII. "Le Ceentenaire des Iguaiiodons (1822-1922)." By M. lIouis DOLLO, Sc.D. Communicated by Prof. A. C. SEWARD, F.R.S.

January 25, 1923.


The following Papers were read:

I. "The Potential Difference occurring in a Donnan Equilibrium and the Theory of Colloidal Behaviour." By Prof. A. V. HILL, F.R.S.

II. "A Study of Catalytic Actions at Solid Surfaces. X.-The Interaction of Carbon Monoxide and Hydrogen as conditioned by Nickel at relatively Low Temperatures.-A Prac- tical Synthesis of Methane." By E. F. ARMSTRONG, F.R.S., and T. P. IILDITCH.

III. " The Periodic Opacity of certain Colloids in progressively increasing Concentrations of Electrolytes." By J. HOLKER, D.Sc. Communicated by Prof. A. V. HILL, F.R.S.

IV. "The Photochemistry of Potassium Permanganate. Part I.- The Application of the Potentiometer to the Study of Photochemical Change. Part II.-On the Energetics of the Photo-decomposition of Potassium Permanganate." By E. K. RIDEAL and R. G. W. NOURISH. Communicated by Sir WILLIAM POPE, F.R.S.

V. "Some Moisture Relations of Colloids. I-A Comparative Study of the Rates of Evaporation of Water from Wool, Sand, and Clay." By E. A. FISHER. Communicated by Prof. A. SMITHELLS, F.R.S.



VI. " Smokes. Part I.-A Study of their Behaviour and a Method of Determining the Number of Particles they contain." By It. WHYTLAW-GRAY, J. B. SPEAKMAN, and J. H. P. CAMPBELL. Communicated by Prof. A. SMITHELLIS, F.R.S.

VII. "Smokes. Part II.-A Method of Determinling the Size of the Particles in Smokes." By IR. WHYTLAW-GRAY and J. B. SPEAKMAN. Coommunicated by Prof. A. SMITHELLS, F.R.S.

VIII. "The Effect of Long Grinidiing oIn Quartz (Silver Sand)." By R. C. BAY. Communicated by Dr. M. W. TRAVERS, F.L.S.



IV. "c The Sympathetic Innervation of the Vagina." By J. A. GUNN and K. J. FRANKLIN. Communicated by Sir CHARLES SHERRINGTON, P.R.S.

V. "On the Metabolic Gradient of the Frog's Egg." By H. G. CANNON. Comnmunicated by Prof. E. W. MAcBRIDE, F.R.S.

VI. "On the Relation between Permeability Variation and Plant Movements." By Mr. BASISWAR SEN. Communicated by Sil MTILLIAm BAYLISS, F.R.S.

VII. "An Inquiry inito an Outbreak of Human Trypanosomiasis in 1a 'Glossina m2orsitans' Belt to the East of Mwanza, Tanganyika Territory." By H. L. DUKE, M.D. Communicated by Mr. C. DOBELL, F.R.S.

VIII. "Le Centenaire des Iguanodons (1822-1922)." By M. Louis DOLLO, Sc.D. Communicated by Prof. A. C. SEWARD, F.R.S.

Janutary 25, 1923.


The following Papers were read:

I. "The Potential Difference occurring in a Donnan Equilibrium and the Theory of Colloidal Behaviour." By Prof. A, V. HILL, F.R.S.

II. "A Study of Catalytic Actionis at Solid Surfaces. X.-The Interaction of Carbon Monoxide and Hydrogen as conidi- tioned by Nickel at relatively Low Temperatures.-A Prac- tical Synthesis of Methane." By E. F. ARnfSTRONG, F.R.S., and T. P. HILDITCGI.

III. "The Periodic Opacity of certain Colloids in progressively increasing Concentrations of Electrolytes." By J. HOLKER, D.Sc. Communicated by Prof. A. V. HILL, F.R.S.

IV. "The Photochemistry of Potassium Permanganate. Part I.- The Application of the Potentiometer to the Study of Photochemical Change. Part II.-On the Energetics of the Photo-decomposition of Potassium Permanganate." By E. K. RIDEAL and R. G. W. NORRISH. Commu1nicated by Sir WILLIAM POPE, F.R.S.

V. "Some Moisture Relations of Colloids. I.-A Comparative Study of the Rates of Evaporation of Water from Wool, Sand, and Clay." By E. A. FISHER. CoMnmunicated by Prof. A. SMITHELLS, F.R.S.



VI. " Smokes. Part I.--A Study of their Behaviour and a lMethod of Determiniing the Number of Particles they containl." By E. WHYTLAW-GRAY, J. B. SPEAKIAIAN, antd J. H. P. CAiw:PlELL. Copimmunicate(d byTProf, A. SiIIEIS, F.R,S.

VII. "Smokes. Part II. .A Method of Detel-ining the Size of the Particles in S mokes." B3y R. WIITYTLAW-GTRAY and J. B. SPEAKMAN. Comm-iunicated by Prof. A. Sio ITIHELLS, F.R.S.

VIII. "The Effect of Long Grinding on Quartz (Silver Sanid)." B3y P,. C. RAY. Coimmunicated by Dr. M. 'W. TRAVERS, F.R..S.

Febary-im) 1, 1923.

,Sir CH ARLES SHERRINGTON, President, in the Chair.

The following Papers were read:-

I. "The Magniitude of the Gyro-magnetic Ratio." By Prof. 0. W. RICHARDSON, F.R.S.

TI. "The Pioductioni of Artificial Vowel Sounids." By Sir RICHARD PAGET, Bart. Coi-mmunicated by Sir WILLIAM BRAGG, F.R.S.

III. "The Carbon Arc Spectrum in the Extreme Ultra-violet." By F. SIMEON. Comm-iunicated by Prof. A. W. PORTER, F.R.S.

IV. " Pleochroic Haloes of Various Geological Ages." Bv Prof. J. JOLY, F.R.S.

V. "The Motion of Electrons in Cases." By Prof. H. A. W-I LSON, F.R.S.

VI. "The Coincidence iNlethod for the Wave-length Measutreuient of Absorption B3ainds." By H. HARTRPDGE. Communicated by Prof. J. N. LANGLEY, F.R.S.

VII. "On the Steady Motion of a Cylinder through Infinite Viscous Fluid." By A. BERRY an-d LORNA M. SWAIN, CommUnicated by H. W. RICHMOND), I.R S.

VIII. "The Line Spectrum of Chlorine in the Ultra-violet Regioni (\ 3354-2070 A)." By W. JEVONS. Communicated by Prof. H. C. PLUMMER, F.:R.S.

IX. "Note on the Adsorption of Gases by Solids anld the Thickntess of the Adsorbed Layer."' By M. H. EVANS ant(d T. .J. GEORGE. Communicated by 1). L. CHAPIMAN, F.R.S.



F7ebruary 8, 1923.

Sir CHARLES SHERRINGTON, President, in the Chair. The following Papers were read:- I. "The Resistance of a Cylinder moving in a Viscous Fluid." By

Prof. L. BAAIRSTOW, :F.R.S., Miss B. M. CAVE, and Miss E. D. LANG.

II. "The Motion of Ellipsoidal Particles in a Viscous Fluid." Bly G. I. TAYLOR, F.R.S.

III. "Further Researches oni the Strength of AMaterials." By Prof. W. F. DALBY, F.R.S.

IV. "Theory of the Measurement of Wind by Shooting Spheres Upward." By LEWIS F. RICHARDSON. Communicated by Dr. G-. C. SIMPSON, F.R.S.

V. "On the Susceptibility of Feebly Magnetic Bodies as affected by Tension." By ERNEST WILSON. Communicated by Prof. 0. W. RICHARDSON, F.R.S.

VI. "Investigations on the Paramagnetic Sulphates at Low Tempera- tures." By L. C. JACKSON and Prof. H. KAMERLINGH ONNES, For. Mem. R.S.

VII. "Investigations on the Paramagnetism of Crystals at Low Temperatures." By L. C. JACKSON and Prof. H. KAMERLINGII ONNES, For. Mem. R.S.

VIII. "The Specific Heats of Air, Steam, andc Carbon Dioxide." By W. D. WOMERSLEY. Communiicated by Sir DUGALD CLERK, F.R.S.

IX. "The Valve-maintained Tuning Fork as a Precisioni Time Standard." By D. W. DYE. Coim-unicated by Sir JOSEPH PETAVEL, F.R.S.

February 15, 1923. Sir CHARLES SHERRINGTON, President, in the Chair.

The following Papers were read: I. "Researches upon the Larch Uhermes (Onaphalodes strobilobius,

Kalt.), and their Bearing upon the Evolution of the Cherrnesina3 in general." By E. R. SPEYER1P. Commu.nicated by Prof. G. C. BOJRNNE, F.Rt.S.

II. "The Irradiation of Conditioned Reflexes." By Cx. V. ANREP. Communiicated by Prof. E. H. STAR1LING, F.R.S.

III. "' The Oxidation of Reduced Glutathione and other Sulphydryl Compounds." By M. DIXON and H. E. TuJNNICLIFFE, Com- imunicate(l by Prof. F. (X. HOPKINS, F.R.S.



IV. "The Variation of Arterial Elasticity with Blood Pressure in Man." By J. C. BRAMIWELL, R. J. S. MCDOWALL, and B. A. MCSWINEY. Communicated by Prof. A. V. HI,L, F.R.S.

V. " On the Existence of an Unidentified Sulphur Grouping in the Protein Molecule. Part I.-On the Denaturation of Proteins. Part II.-On the Estimation of Cystine in certain Proteins." By L. J. HARRIS. Commrunicated by Prof. F. G. HOPKINS, F.R.S.

VI. "Reflex Contractions of the Cruralis Muscle in the Decerebrate and Spinal Frog. By N. B. LAUGHTON. Communicated by Sir CHARLES SHERRINGTON, P.R.S.

Fe lbruary 22, 1923.

Sir CHARLES SHERRINGTON, President, in the Chair. In pursuance of the Statuites, the names of the Candidates

recommended for election into the Society were read from the Chair as follows:

Adrian, E. D. Balls, W. L. Barr, A. Desch, C. H. Fawcett, E. Horton, F. Leiper, R. T.

MoBain, J. W. Macleod, J. J. R. Marshall, G. A. K. Mawson, Sir D. Mills, W. H. Plaskett, J. S. Procter, H. R.

Wilson, W.

The BAKERIAN LECTURE was delivered by G. I. TAYLOR, F.R.S., and C. F. ELAM- " On the Distortion of ain Aluminium Crystal during a Tensile Test."



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