Back Matter Source: Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, Vol. 93, No. 655 (Oct. 9, 1917), pp. i-xv Published by: The Royal Society Stable URL: http://www.jstor.org/stable/93634 . Accessed: 08/05/2014 22:02 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. . The Royal Society is collaborating with JSTOR to digitize, preserve and extend access to Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character. http://www.jstor.org This content downloaded from 169.229.32.137 on Thu, 8 May 2014 22:02:06 PM All use subject to JSTOR Terms and Conditions
Transcript
Back MatterSource: Proceedings of the Royal Society of London. Series A, Containing Papers of aMathematical and Physical Character, Vol. 93, No. 655 (Oct. 9, 1917), pp. i-xvPublished by: The Royal SocietyStable URL: http://www.jstor.org/stable/93634 .
Accessed: 08/05/2014 22:02
Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at .http://www.jstor.org/page/info/about/policies/terms.jsp
.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range ofcontent in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new formsof scholarship. For more information about JSTOR, please contact [email protected].
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The Royal Society is collaborating with JSTOR to digitize, preserve and extend access to Proceedings of theRoyal Society of London. Series A, Containing Papers of a Mathematical and Physical Character.
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Sir J. J. THOMSON, 0.MI., Presidenit, inl the Chair.
Prof. James Arthur PollocGk was adcmitted into the Society.
The followting papeirs were read:
I. "On the Photographic Spectria of Meteorites." By Sir Wr:TJ-LAM C. OOKES, O.M., F.R.S.
I. " On Waves in an Elastic Plate." By P'r-of. II. LAMBixi, F.R.S.
IlI. "On Miultiple Inltegrals." BV Prof. W. 11. YOUNCG, F.R.S.
IV. "c On the Order of NAofiagnitude of the Coefficients of a Fourier Series." bly Prof. W. H. YOUNG, F.R.S.
V. "A Determnination of tle Heat of Vaporisation of Walter ntt 100 C. anid One Atmosphere Pr-essure in Ternis of the Meat Calorie." -By T. C. SuTroN. Communicated bv Dr. E. -[I. GmINFIr ris, F. t. S.
VI. "On the Mfecthanical Relationts of the Energy of Maguetisation." By G. HI. 1LVENs. Commnicated bv Sir Josrn-vyr LARATIOR, F. R.S.
Novemnber 9, 1916.
Sir J. J. THOMSON, O.M., President, in the Chair.
Iii pursuancMe of the Statu-ttes, Prof. W. 1NT. Bayliss, Sir David .}ri cc, and Prof. H. G. Plimmer were elected Auditors of the Treasuirer"s Accounts on the part of the Society.
The following paper.s were read.(-
I. " Methods of Raising a Low Arterial PressI1nec. By Prof. W. Ml. IPsAYLTs&, F. ., S.
IL. " Selective Perimeak jiith y the Absorption of Phentol and other Solutio ns by the Seeds of vcdeie vuldcare." By A. J. Bno MN,-) F. R.S.S tad . TINKEA1R.
III1. "On the 'r'oxic Action of Dilute Pure Sodium Chloride ScluA tions on the MeningoooCCus." 7 By C, SH1EARER, Y'..S.
IV. " The 1Mhle of the Phagocte in Cerebi o-spin:l Meinl tt Py C. S-11UAmEIn1, F.R,.S., aInd H. W. Citowji:.
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V. " Investigation dealing' wivth the Phenomxiena ofI 'Clot' Fornia- tions.-- SPart IV. The Diphasic Erosive Action of Salts oni the Cholate Cel." By S. B. ScutyvviW n andt MARY HE>WLYrUT. Corimunicated by Prof. V. Ti. TiACKN1AN, F.R.S.
VI. Somne Photocheinieal Experimnenlts with Pure Chlorophyll and their -B noaring oti Theories of Carbont Assi.nilation." 'By IN V1AR J6i-,G-Sw NN tvid F. Ki-rii. Comunnicated by Prof. V. i. BLACKMAN, Ei.R S.
November 23, 1916.
Sir J. J. THOMSON, O.M., President, in the Chair.
A Special General MNIecting was held to discuss t uhe i Arlniial Rf3e3Drt
&f the Couincil.
I-n puirsuanice of the St;atutes, notice of the ensuinog A1rn1ive. sar.y Mleetinr was given from t':he Chair, anid the List of Officers and Council nominated for election wvas rea'd as follows :----
IPresidenl.-Sir Josepl. J. Tihoin-ion, OM f., A., D.Sc., LL.D.
Treasmcrer.-Sir Alfred Bray- Kenmpe, Mt.A., l).C.L.
sf Prof. Artlhur Sehu-tster, Sc.D)., 1h.1). leWilliami Beate [ar(y, M.A .
Other G`9lbcra oaJ th (jOlliiil.-- Prof. Jolrti (xeoLge Adami, i). uiorace T. ltirowti,n :L.LI).; Dugald. Clerk, D.Sc.; Prof. A-rthur. Xtobertsotn Cushny, M.D. , 1)rof. Arthur Dendy, ).Sc. ; Prof. Percy Faraday Franikiand LL 1.) Prof. Joht -Walter Gre'gory, ( ).Sc.
Henry Head, Mi.).; Jamnes HIopwood Jeas; Major H1enry vceorge Lvoris , Major Pe-rcy Alexc rider MacMIaho, D.Sc. Prof. Franeis "Wall Oliver, D.Sc.; Prof. Charles Scott Sbherrington, iJ). ; 1Prof. rAtthar Smithells, B.Sc. ; Hon. Rlobert Jhbn Str;uttit M.A.; Richard Threlifll.
M. A.
Trhe followi-ug papers wer e r.ead:-
I. " The Corrosion1 and Ilectrical Properties of Steels." IBy Sir ROBERT iTADIFIELI) F.R.SI, and E. NiEWiBEw.Y, D.Sc.
II. "Monoclinic Double Selenates of the Nickel Group." 1By A. E. I. TUTTON, D.Sc., F.R.S.
Ill. "X-Ray Analysis and Topic Axes of the Aklkali Suilphates ati(d
their Bearinig oII the Law of Valenicy Volumes." By A. E. IT. TUTTON, D.Se, F.R.S.
IV. "The Scattering of Plane Electric Waves by Spheres." I:k r' J. i'A. BROMWIC1, F.R.S.
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V. Numerical Results of the Theory of the Diffractioni of a PlaIne Electro-magnetic Wave by- a Perfectly Conducting Sphere." By J. PROUDMAN, A. T. DOODSON, and G. KENNNE3DY. Communicated by Dr. T. J. T'A. BROMWiCH, F.R.S.
NTor,einer 30, 1916. ANNIVERSARItY M'IlETTIIN(F:.
Sir J. J. T-JOISON, O.M., President, in the Chair.
The Report of the Anuditors of the Treasurer's accounts was read, an1(l the 'thanks of the Society were given to the Treasurer- land to the Auditors.
The List of Fellows deceased and the List of Fellows elected into the Society since the last Anniversary were reead.
T'he Report to the Society fison-i the Council, u pon the work during the past year, was, upon the -motion of the :President, received.
The Presideiit delivered his AnVniversary Address. Onr the inotioll of Sir J. Wolfe Barry, seconded by Sir Wn. Tilclen, the thanks of the Society were givren to the President for his Address and he was. requested to allow it to be priinted.
The Awards of the Me dals for the year were antnounced as follows. and the Medals were presented( from the Chair:i
'The Copley Medal T............ o Sir Jas. Dewar, F.R.S. The Rumford Medal .......... Prof. W. H1. Bragg, F.R.S. A Royal Medal ............... ,, Dr. J. S. Haldanre, F.R.S. A. Royal Medal ............... ,, Prof. H. M. Macdonald, F.R.S. Trhe Davy edal ............ ,, Prof. H. L. Le Chatelier,
For.Men.1R,.S. T'he Darwin Medal .. ,, Prof. Yves I)elage. 'lhle Sylvester Medal ......... ,, M. Jean Gastont )arbotlx,
For.Mem.R.S. The Hughes Medal ......... Prof. Elilhui Thomso-n.
The President haviing, with the consenit of the Society, nominated 1)r. A. Scott and i)r: A. Strahani as Scrutators, to assist the Secretaries, in examining the -ballotinig lists for the election of Council aind Officers, the votes of the Fellows present weere taken. The Scrutators reported that the Council and Officers inominiated at the preceding meeting had been dluly elected, and theirL names werLe accordingly announced from the Chair.
The thanks of the Society were giveni to the Scrt'tttors.
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Sir J. J. TH:OMSON, O.M., President, int the Chair.
The President announced that he hiad appointed as Vice-Presi- dents:-
Dr. Henvy Head. Mlajor P. A. MacMahon. Prof. Arthur Smithells. Sir Alfred Kempe (Treasurer).
Trhe following P)apers were read:-
1. " The Cytoniyorphosis of the Marsupial Ena-mel-organ and it, Significance in Relation to t;he Structure of the Completed Enamel." By J. T. CARTER. Comm-1nicated by 'Prof. J. P. HITI, F.R.S.
I. "'The DI)evelopyrient of the PanucrIas, the 1Paicreatic aid Hepatic Ducts in Trichosur2us vmpllecria." By MARGARtET rpRrli.B
Commun-).icatedb y Prof. J. P. IL],L, F.R.S.
HI'. " The Fossil Human Skull found at Talgai, Queensland." By S. A. SMIT-L. Communicated by Prof. G. ELLIOT SAum-r, F.R.S.
iY. " The TVDruical X'Frni, of the Cochlea ai-d its,,-, V ariations." By I1 :J W. -rr1. Comimi)i,unicatCed by Prof. D. NOEL PATON, F.R.S.
iT On1 t1ho Structu-re and Biology of ArIchotermopsis, together with Descriptions of New Species of Intestital Protozoa, anld General O)bservation-s on the Isoptera." By A. D. IMM 8, D.Sc. Commurnicated by- Prof. S. J. HTCKSON, F.R.S.
VI. " Torsionial Hysteresis of Ml.Ii -Steel." By J. J. GIUEST atnd F. C. LEA. Communicated Sy ir OfYVE LODGE, F.R.S.
The Societ;y adjourde(l over tlhe Chrtistma-s Recess to Thursday, January 25, 191?.
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In pursuanice of the Statutes, the names of Candidates for electioni into the Society were read as follows:-
Abell, Westcott Stele. Agar, Wilfred Eade. Arber, Edward Alexander Newell. Armstrong, Edward Frankland. Ashworth, James Hartley. Bainbridge, Francis Arthur. Bairstow, Leonard. Barger, George. Bedson, Peter Phillips. Berry, Arthur. Bolton, Charles. Bose, Jagadis Chunder. Bryce, Thomas Hastie. Burnside, William Snow. Campbell, Albert. Carpenter, Charles. Carpenter, Henry Cort Harold. Cathcart, Edward Provan. Chapman, Thomas Algernon. Close, Charles Frederick. Cole, Grenville Arthur James. Conyngham, Gerald Ponsonby
Lenox. Cross,j Charles Frederick. Dakin, Henry Drysdale. Davidson, Sir James Mackenzie. Dobell, Cecil Clifford. Dreyer, Georges. Duckworth, Wynfrid Laurence
Henry. Edridge-Greeni, Frederick William. Eve, Arthur Stewart. Forbes, Henry Ogg. Gardner, John Addyman. Gemmill, James Fairlie. Gold, Ernest. Graham-Smith, George Stuart Greenwood, Major. Gregory, Reginald Philip. Guppy, Henry Brougham.
Hadcock, Albert George. Henderson, Ja`ies B. Henry, Augustine. Heron-Allen, Edward. Hewlett, Richard Tanner. Hill, Archibald Vivian. Hill, Arthur William. Hilton, Harold. Horrocks, William Heaton. Hoyle, William Evans. ilume, William Frazer. Hutchinson, Arthur. Irvine, James Colquhoun. Jackson, Herbert. Jacksoni, Louis Charles. Kitchin, Finlay Lorinier. Lake, Philip. Leathem, John Gaston. Lefroy, Harold Maxwell. Locke, Frank Spiller. Macdonald, John Smith., Marshall, Francis Hugh Adam. Matthew, William Diller. Maw, William Henry. Mill, Hugh Robert. Moss, Charles Edward. Mummery, John Howard. Murphy, Sir Shirley Forster. Nicholsoni, Johrn William. Orton, Kennedy Joseph Previte. Parsons, Richard Clere. Peddie, William. Perkins, Robert Cyril Layton. Philip, James Charles. Pickard, Robert Howson. Plummer, Henry Crozier. Ray, Prafulla Chandra. Redwood, Sir Boverton. Regan, Charles Tate. Reynolds, Sidney Hugh.
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-Ritchie, James. Robertson, Robert. Rose, Sir Thomas Kirke. Rosenheim, Otto. Russell, Alexander. Russell, Edward John. -Seligman, Charles Gabriel. Senier, Alfred. Shattock, Samuel George. Shaw, Philip Egerton. Sidgwick, Nevil Vincent. Skeats, Ernest Willington. Smiles, Samnuel. Smith, Frank Edward. "Spencer, Leonard James.
Steele, Bertram Dillon. Stephens, John William Watson. Thornton, William Mundell. Vickers, Albert. Vernon, Horace Middleton. Warren, William. Henry. Watson, David Meredith S. Weiss, Frederick Ernest. Wheeler, Richard Vernon. Willcox, William Henry. Willis, John Christopher. Wilson, Ernest. Wood, Thomas Barlow. Yarrow, Sir' Alfred Fernandez.
The following Papers were read:-
I. " Spectroscopic Observations on the Active Modification of Nitrogen.-V." By the Hon. R. J. STRUTT, F.R.S.
II. " Magnetic Induction and its Reversal in Spherical Iron Shells." By Prof. J. W. NICHOLSON and Prof. E. WILSON. Com- municated by Prof. J. A. FLEMING, F.R.S.
III. "The Two-Dimensional Motion of a Plane Lamina in a Resisting Medium." By S. BRODETSKY. Communicated by Prof. G. C. BRYAN, F.R.S.
February 1, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair.
The following Papers were read:-
I. " An Application of the Theory of Probabilities to the Study of a priori Pathometry.-Part II." By Sir RONALD Ross, K.C.B., F.R.S., and Miss H. P. HUDSON.
II. "An Applicatio-n of the Theory of Probabilities to the Study of a priori Pathometry.-Part III." By Sir RONALD Ross, K.C.B., F.R.S., and Miss H. P. HUDSON.
III. "An Investigation into the Periodicity of Measles Epidemics in London from 1703 to the Present Day by the Method of the Periodogram." By JOHN BROWNLEE, M.D. Communicated by Dr. W. AM. FLETCHER, F'R.S.
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IV. "On the Causes Responsible for the Developmiental Progress of the Mammary Glands in the Rabbit during the Latter Part of Pregnancy." By Captain J. HAMIMOND. Communicated by J. BARCROFT, F.R.S.
V. "On the Post-tEstrous Changes Occurring in the Generative Organs and Mammary Glands of the Non-Pregnant Dog." By F. H. A. MARSHALL and E. T. HALNAN. Communicated by J. BARCROFT, F.R.S.
February 8, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair.
The following Papers were read: I. "On the Dynamics of Revolving Fluids." By LORD RAYLEIGH,
O.M., F.R.S. II. "On the Deflection of the Vertical by Tidal Loading of the
Earth's Surface." By Prof. HORACE LAMB, F.R.S.
III. "Spontaneous Generation of Heat in Recently Hardened Steel." By C. F. BRUSH and Sir R. HADFIELD, F.R.S.
Febru-'iry 15, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair.
The following Papers were read:-
I. "On the Structure and Development of the Tubular Enamel o the Sparidwe and Labridee." By J. H. MUMMERY, D.Sc. Communicated by Prof. J. SYMINGTON, F.R.S.
II. "The Distribution in Wheat, Rice, and Maize Grains of the Substance, the Deficiency of which in a Diet causes Polyneuritis in Birds and Beri-beri in Man." By HARRIETTE CHICi and E. M. HUmE. Communicated by Dr. C. J. MARTIN, F.R.S.
II. "The Effect of Exposure to Temperature at or above 100' C. upon the Substance (Vitamine) whose Deficiency in a Diet causes Polyneuritis in Birds and Beri-beri in Man." By HARRIETTE CHICK and E. M. HUME. Communicated by Dr. C. J. MARTIN, F.R.S.
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Sir J. J. THOMSON, O.M., President, in the Chair. The following Papers were read: I. "A Graphical Method of Drawing Trajectories for High-angle
Fire." By Prof. W. E. DALBY, F.R.S.
II. "Osmotic Pressures derived from Vapour Pressure Measure- ments-Aqueous Solutions of Cane Sugar and Methyl Gluco- side." By the EARL OF BERKELEY, F.R.S., E. G. J. HARTLEY, and C. V. BUETON.
III. "The Complete Photo-electric Emission from the Alloy of Sodium and Potassium." By W. WILSON. Communicated by Prof. 0. W. RICHARDSON, F.R.S.
March 8, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair. The following Papers were read:
I. "Some Effects of Growth-promoting Substances (Auximones) on the Growth of Lemna minor in Mineral Culture Solutions." By W. B. BOTTOMLEY. Communiicated by Prof. F. W. OLIVER, F.R.S.
II. "Some Effects of Growth-promoting Substances (Auximones) on the Soil Organisms Concerned in the Nitrogen Cycle." By FLORENCE A. MOCKERIDGE. Communicated by Prof. F. W. OLIVER, F.R.S.
March 15, 1917. Sir J. J. THOMSON, O.M., President, in the Chair.
The following Papers were read: I. "The Initial Wave Resistance of a Moving Surface Pressure."
By Prof. T. H. HAVELOCK, F.R.S. II. "Experiments with Mercury Jets. I.-The Relation between
the Jet-length and the Velocity of Efflux." By Prof. S. W. J. SMITH, F.R.S., and H. Moss.
III. "Experiments with Mercury Jets. II.-A Comparison with Jets of other Liquids." By Prof. S. W. J. SMITH, F.R.S., and H. Moss.
1V. "On the Mode of Approach to Zero of the Coefficients of a Fourier Series." By Prof. W. H. YOUNG, F.R.S.
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V. " The Dissipation of Energy in the Tides in Connection with the Acceleration of the Moon's Mean Motion." By R. 0. STREET. Communicated by Prof. Sir JOSEPH LARMOR, F.R.S.
March 22, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair.
The following Papers were read:-
I. "Observations and Experiments on the Susceptibility and Immunity of Rats towards Jensen's Rat Sarcoma." By J. C. MOTTRAM, M.B., and S. Russ, D.Sc. Communicated by Prof. H. G. PLIMMER, F.R.S.
II. "Problems Bearing on Residual Affinity." By SPENCER PICKER- ING, F.R.S.
III. "On Residual Magnetism in Relation to Magnetic Shielding." By Prof. E. WILSON and Prof. J. W. NICHOLSON. Communi- cated by Prof. J. A. FLEMING, F.R.S.
IV. "The Solar and Lunar Diurnal Variations of Terrestrial Mag- netism." By S. CHAPMAN, D.Sc. Communicated by Sir FRANK DYSON, F.R.S.
March 29, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair.
The following Papers were read:-
I. "The Fourth Colourless Sensation in the Spectrum Sensation Curve when Measured in the Centre of the Retina." By Sir WILLIAM ABNEY, F.R.S.
II. "On Magnetic Inertia." By G. W. WALKER, F.R.S.
III. "The Selective Properties of the Copper-ferrocyanide Membrane." By F. TINKER. Communicated by Sir OLIVER LODGE, F.R.S.
IV. "X-Ray Analysis of the Crystal-Structure of Rutile and Cassi- terite." By C. M. WILLIAMS. Communicated by Dr. E. H. GRIFFITHS, F.R.S.
V. "On Discontinuous Fluid Motion." By J. G. LEATHEM, D.Sc. Communicated by Prof. H. F. BAKER, F.R.S.
The Society adjourned over the Easter Recess to Thursday, April 26.
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I. "The Effective Inertia of Electrified Systems Moving with High Speed." By G. W. WALKER, F.R.S.
II. "The Composition of the X-Rays from Various Metals." By G. W. C. KAYE, D.Sc. Communicated by Dr. R. T. GLAZE- BROOK, F.R.S.
III. "The Germicidal Action of Ultra-violet Radiation and its Corre- lation with Selective Absorption." By C. H. BROWNING, M.D., and S. Russ, D.Sc. Communicated by Prof. A. W. PORTER, F.R.S.
IV. "Morphological Studies in the Life-histories of Bacteria." By E. C. HORT. Communicated by Prof. J. B. FARMER, F.R.S.
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The Statutes relating to the Election of Fellows having been read, Mr. E. T. Newton and Sir A. Pedler were, with the consent of the Society, nominated Scrutators, to assist the Secretaries in the examina- tion of the balloting lists.
The votes of the Fellows present were collected, and the following Candidates were declared duly elected into the Society:-
Ashlworth, James Hartley. Bairstow, Leonard. Cole, Grenville Arthur James. Cross, Charles Frederick. Dakins, Henry Drysdale. Eve, Arthur Stewart. Jackson, Herbert. Macdonald, John Smith.
Nicholson, John William. Pickard, Robert Howson. Regan, Charles Tate. Robertson, Robert. Russell, Edward John. Shattock, Samuel George. Weiss, Frederick Ernest.
May 3, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair.
The Croonian Lecture was delivered by Dr. THOMAS LEWIS, on "The Excitation Wave in the Heart."
May 10, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair.
Mr. C. F. Cross, Prof. H. Jackson, Prof. J. W. Nicholson, and Mr. C. T. Regan were admitted into the Society.
The following Papers were read: I. "On Permanent Periodicity in Sunspots." By Sir JOSEPH
LARMOR, F.R.S., and N. YAMAGA.
II. "The High-frequency Resistance of Multiple-stranded Insulated Wire." By Prof. G. W. 0. HOWE. Communicated by Prof. T. MATHER, F.R..S.
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Prof. G. A. J. Cole, Prof. A. S. Eve, Prof. J. S. MacdQnald, and Mr. S. G. Shattock were admitted into the Society.
No Papers were read.
June 14, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair.
The following Papers were read
I. "Some Cases of Wave Motion Due to a Submerged Obstacle." By Prof. T. H. HAVELOCK, F.R.S.
II. "On the Propagation of Sound in the Free Atmosphere and the Acoustic Efficiency of Fog Signal Machinery." By Prof. L. V. KING. Comnmunlicated by Prof. H. T. BARNES, F.R.S.
III. "The Behaviour of Scattering Media in Fully Diffused Light." By H. J. SHANNON, F. F. RENWICK, and B. V. STORR. Communicated by Dr. T. M. LOWRY, F.R.S.
IV. "The Theory of Decay in Radioactive Luminous Compounds." By J. W. T. WALSH. Communicated by Dr. R. T. GLAZE-
BROOK, F.R.S.
Jite 21, 1917.
Sir J. J. THOMSON, O.M., President, in the Chair.
The following Papers were read:
I. "Revolving Fluid in the Atmosphere." By Sir NAPIER SHAW, F.R.S.
II. "Absorption Bands of Atmospheric Ozone in the Spectra of Sun and Stars." By Prof. A. FOWLER, F.R.S., and Hon. R. J. STR-UTT, F.R.S.
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I. "A Contribution to the Study of the Magnetie Properties of ?Manganese and of Some Special Manganese Steels." By Sir ROBERT HADFIELD, F.R.S., CH. CHE'NEVEAU, and CH.GENEAU.
II. "Note on the Specific Heat of Water." By W. R. BOUSFIELD, F.R.S.
III. "The Specific Heat of Aqueous Solutions, with Special Refer- ence to Sodium and Potassium Chlorides." By W. R. BOUSFIELD, F.R.S., and C. ELSPETH BOUSFIELD.
IV. "The Rankine Trochoidal Wave." By Sir GEORGE GREENHILL, F.R.S.
V. "The Tribo-Electric Series." By P. E. SHAW, D.Sc. Com- municated by Prof. E. H. BARTON, F.R.S.
VI. "The Nature of the Tons Produced by the Spraying of Water." By J, J. NOLAN. Communicated by Prof. J, A. MCCLELLAND, F.R.S.
VII. "The Absorption Spectra and the Tonisation Potentials of Calcium; Strontiumn, and Barium." By Prof. J. C. McLENNAN, F.R.S.
VIII. "Geotropism and the Weber-Fechner Law." By JAMES SMALL. Comnmunicated by Dr. A. 1). WALLER, F.R.S.
TX. "'The Isolationi from Peat of Certain Nucleic Acid Derivatives." By Prof. W. B. BOTTOMLEY. Communicated by Prof. F'. W. OLIVER, F. R. S.
The Society adjourned over the Long Vacation to Thursday, November 1.
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