312 

Diary of Societies. 
SATURDAY, Marcu 8. 
ASssOcIATION OF TECHNICAL INstTiTUTIONS (Aunual General Meeting) (at 
Carpenters’ Hall), at 11 and 2. 
Royat InstiruTion or Great Britarn, at 3.—Sir Ernest Rutherford : 
Atomic Projectiles and their Properties (8). 
Giteert Wuirk Fettowsuie (at 6 Queen Square, W.C.1), at 3.—Dame 
Helen Gwynne-Vaughan: The Mechanism of Inheritance. 
MONDAY, Marcu 5. 
Royat Asrronomican Sociery (Geophysical Discussion), at 5.—The 
Absolute Measurement of Magnetic Force. Chairman, Dr. C. Chree. 
Speakers: F. E. Smith, Sir Arthur Schuster, H. Spencer Jones (and 
possibly Dr. A, Crichton Mitchell). 
Royat Instirorion or Great Barra, at 5.—General Meeting. 
Royar Corn OF SURGEONS oF Enoianp, at 5 —Sir Arthur Keith : 
Man’s Posture: its Evolution and Disorders (1)\(Hunterian Lectures). 
Society or Encinrers, Inc. (at Geological Society), at 5.30.—A. S. E. 
Ackermann: The Physical Properties of Clay (fifth paper) and the 
Dynamics of Pile-driving, 
InstiruTION OF Rusper InpustRy (at Engineers’ Club, 39 Coventry Street), 
at ar 0.—H. Savage: Telegraph Cable Manufacture, Rubber and Gutta- 
percha. 
InstiTuTion or ELecrricat Enorneers (Informal Meeting), at 7.—J. H. 
Parker and others: Discusion on Control in Industry. 
ARISTOTELIAN Society (at University of London Club), at §.—E 8. 
Russell: Psycho-biology. 
Roya Society or Arts, at 8.—J. E. Sears: Length Measurement () 
(Cantor Lectures), 
Soctery or Cuewica Ixpustry (London Section) (at Engineers’ Club, 39 
Coventry Street), at 8.—Dr, T, M. Legge: Industrial Poisoning and the 
Works Chemist. 


TUESDAY, Marcu 6. 
Royau Inst1TUTION OF GREAT Brirain, at 3.—Sir Arthur EB. Shipley : 
Life and its Rhythms (2). Rhythin in Living Organism. 
Royat Sociery of Arts (Dominions and Colonies Section), at 4.30.— 
Major E. A. Belcher: The Dominion and Colonial Sections of the 
British Empire Exhibition. 
Royat CoLLece or Puysictans oF Lonpon, at 6.—Dr. G. Evans: The 
: Nature of Arterio-sclerosis (1) (Goulstonian Lectures). 
Zooroatcar Society or Lonpon, at 5.30.—H. G. Cannon: A Note on the 
Zowa of the Land-Crab, Cardisoma armatum,—Miss L. E. Cheesman : 
Notes on the Pairing of the Land-Crab, Cardizoma armatum.—Dr. C. F. 
Sonntag: The Comparative Anatomy of Tongues of the Mammalia. 
VIU, Carnivora.—R. Kirkpatrick: A New Species of the Tunicate 
Rhizomolquia with remarkable Sensory Organs. No. 24. Results of the 
Oxford University Expedition to Spitsbergen, 1921.—T. H. Ring : The 
Elephant-Seals of Kerguelen Island. 
Insti TUTION oF Civir. ENGINEERS, at 6. 
Roya Pxorocrapnic Society or GREAT BRITAIN (Scientific and Technical 
Group), at 7.—K. C. D, Hickman: An Electric Indicator for Washing- 
troughs.—A. C. Banfield: The “ Perfect” Camera. 
ROnTGEN Sociery (at Institution of Electrical:Engineers), at &.15. 
WEDNESDAY, Marcu 7. 
INSTITUTE or METALS (at Institution of Mechanical Engineers), at 10.— 
Dr. Aitchison : The Mechanical Properties of the Magnesium Alloys.— 
Prof. H. C. H. Carpenter and C. C. Smith: Tests on Work-hardened 
Aluminium Sheet.—Kathleen E. Bingham and Dr. J. L. Haughton: The 
Constitution of some Alloys of Aluminium with Copper and Nickel.—M. 
Cook: The Reerystallisation of Cold Worked Cadmium.—Dr, A. W. 
Gray : Volume Changes accompanying Solution, Chemical Combination, 
and Crystallisation in Amalgams.—At 2.30.—Dr. W. Rosenhain, 8. L. 
Archbutt, and 8. A. E. Wells: The Production and Heat.Treatment of 
Chill Castings in an Aluminium Alloy (‘‘Y”).—Prof. F. C, Lea, Dr. V. 
A, Collins, and Dr. E. A. F. Reeve: The Modulus of Direct Elasticity 
of Cold-drawn Metals as a Function of Annealing Temperature,—A. M. 
Portevin: The Structure of Eutecties.—R. Genders: The Extrusion 
Defect in Brass Rods extruded from a Multiple Die.—S. Beckinsale : 
Further Studies in Season-Cracking and its Prevention. The Removal 
of Internal Stress in 60:40 Brass. 
Roya. Society ror THE Prorection or Brrps (at the Middlesex Guild- 
hall, Westminster), at 8.—Annual Meeting. 
Roya. Coutecr or Surcrons or HNGLAND, at 5.—Sir Arthur Keith: 
Man's Posture: its Evolution and Disorders (2) (Hunterian Lectures). 
INSTITUTION or ELectricaL ENGINEERS (Wireless Section), at 6.—H. 
Morris-Airey : Development of Naval High Power Valves, 
Society or PuBLic ANALYSTS AND OTHER ANALYTICAL CHemisTs (at 
Chemical Society), at 8.—A. Lucas: The Examination of Firearms and 
Projectiles.—R. C. Frederick : The Interpretation of the Results obtained 
in the Analysis of Potable Waters,—S. B. Phillips : Determination of 
the Purity of Vanillin. ’ 
Borat SoGuer or Arts, at 8,—Prof. E. P. Stebbing: The Forests of 
ussia. 
Enromo.oaicat Society or Lonpoy, at 8. 
THURSDAY, Marc 8. 
InsTITUTE OF Merats (at Institution of Mechanical Engineers), at 10.— 
R. C. Reader: Some Properties of the Copper-Rich Copper-Aluminium 
Alloys.—C, R. Austin and A. J,.Murphy ; The Ternary System Copper- 
Aluminium-Nickel.—Col. N, T. Belaiew: The Inner Structure of the 
Crystal Grain as revealed by Meteorites and Widmanstatten Figures.— 
A. L. Norbury: The Hardness of Annealed Copper.—A. L. Norbury: 
The Hardness of certain Copper Alpha-Solid Solutions.—At 2.30.— 
H. Heape: The Density and the Hardness of the Cast Alloys of Copper 
with Tin.—Dr. D, Hanson and Marie L. V. Gayler: The Heat-Treat- 
NO. 2783, VOL. 111] 
NATURE 







[Marcu 3, 1923 
ment and Mechanical Properties of Alloys of Aluminium with Small 
Percentages of Copper.—Marie L, V, Gayler: The Constitution and Age- — 
Hardening of the Ternary Alloys of Aluminium with Magnesium and — ! 
Copper,—R. Genders : The Scleroscope Hardness Test. A New Form of 
Magnifier Hammer.—N. B. Pilling and R. EB, Bedworth: The Oxidation — 
of Metals at High Temperatures, ek 
Roya InstirvuTion or GREAT Brirarn, at 3.—T. Stevens: Water Power 
of the Empire (2). ee 
Roya. Socrety, at 4.80.—A. B. Wood, H. E, Browne, and C. Cochrane 
Determination of Velocity of Explosion Waves in Sea Water. Variation 
of Velocity with Temperature.—P. M. SBlackett : The Study of Forked — 
Alpha Ray Tracks.—E. Hatschek and P. C. L. Thorne: Metal Sols in 
Non-dissociating Liquids. I. Nickel in Toluene and Benzeue.—H, 
Hirata: Constitution of the X-Ray Spectra belonging to the L Series — 
of the Elements.—A. Egerton: The Vapour Pressure of Lead. I.— 
A, C. Egerton and W. B. Lee: Some Density Determinations.—A. C. 
Egerton and W, B. Lee: Separation of Isotopes of Zinc. 
Lonpon MATHEMATICAL Society (at Royal Astronomical Society), at 5.— 
Prof. A. E. H. Love: Some Electrostatic Distributions in Two — 
Dimensions.—J. P. Gabbatt: A Hyperspatial Analogue of Fenerbach’s 7 
Theorem.—Prof. G, H. Hardy and E. C. Titchmarsh: Solutions of 
some Integral Equations considered by Bateman, Kapteyn, Milne, and — 
Littlewood.—S. C. Dlar: Some Integral Equations connected with the 4 
Elliptic Cylinder Functions.—J. Vinogradow : Lattice Points in jons y 
of two or three Dimensions —M. Merker: Génération et étude d'une 
surface du 3e ordre particuliére.—H. W. Turnbull: The General — 
Symbolic Notation for the Principle of Duality and its Application to 
Determinants. —E. W. Hobson; On Generalised Fourier Series. | 
Rovau Couece or Paystctans or Lonpox, at 5.—Dr. G. Evans: The 
Nature of Arterio-sclerosis (2) (Goulstonian Lectures), - | 
Royat Socrery or Mepicrxe (Balneology and Climatology Section), at 
5.30.—Dr. Sonntag and others: Discussion on The Vagus and Sympathetic a 
Nerves and their Relation to Hydrology and Climate. > 
Society or DyERs anv. Cotaurists (London Section) (at Dyers’ je | 
Dowgate Hill), at 7.—B. Brown and H. Jordan: The Valuation of Dye- 
stufts by Titration Methods. (Rapid Commercial Estimation of Value.) ~ — 
OpricaL Society (at Imperial College of Science and Technology), at 7.30. 
—H. Dennis Taylor: Optical Designing as an Art.—T. Smith: The — 
Distribution of Correction Duties in Optical Instruments. ' 
InstIreTE oF METALS (London Local Section) (at Institute of Marine 
Engineers), at §.—Open Diseussion. 
CaMERA Cuvs, at 8,15.—H. Main : A Pilgrimage to Provence. 
FRIDAY, Marcu 9. 
: 
Roya Astronomical Socrety, at 5. : 
PuysicaL Sociery or Lonpon (at Imperial College of Science and 
4 

Technology), at 5.—Sir William Bragg: The Crystalline Structure of 
Anthracene.—Dr. A. B, Wood and Capt, H. E. Browne: A Radio- 
acoustic Method of locating Positions at Sea.—J. H. Powell and Dr, 
J. H. T. Roberts: The Frequency of Vibration of Circular Diaphragms. 
Roya CoLLece or SuRGEONS OF ENGLAND, at 5.—Sir Arthur Keith; 
Man's Posture : its Condition and Disorders (3) (Hunterian Lectnres). 
MALacooatcat Society oF Lonpon (at Linnean Society of London), at 6. ~ 
INSTITUTION OF HEATING AND VENTILATING ENGrnEeRS (at neers’ 
Club), at 7.—J. G. Clark: Gas as a Fuel. oe 
Junior INSTITUTION OF ENGINEERS, at 7.30.—R. ©. D. Fell: Rolling Mill — 
Machinery. tn 
Royat Puoroarapuic Society or GREAT Britatn, at 8.—W. Sanderson: 4 
Over the Gemmi to the Valley of the Rhone. ¥ 
InstiTUTE oF CHEMISTRY at 8.—E. J. MacGillivray : Some Aspects of the 
Law of England affecting Chemists. “Wh 
Royau InstiruTion or Great Briraty, at 9.—Dr. C., W. Saleeby: Sun- 
light and Disease. 
SATURDAY, Marcu 10. . 
Royat Institution oF Great Briraty, at 8.—Sir Ernest Rutherford: 
Aromie Projectiles and their Properties (4). 
Gitpert Wuire FeLLowsHip (at 6 Queen Square, W.C.1), at 3—Con- 
versazione, 
in 
“ 
| 
J 
i 
Payee | 5 SO 
PUBLIC LECTURES. 
SATURDAY, Marca 8. 
Horniman Musrum (Forest Hill), at 3.30.—Miss M. A. Murray: Legends — 
of the Gods of Ancient Egypt. q 
a pine 



MONDAY, Marcu 5. 
Vicror1s Leacur Hovusr (22 Eccleston Square, S.W.1), at 5.—P. D. 
Warren: Peeps at Ceylon Life, Industries, and Vegetation. - 
Overseas CLuB AND LEacueE (at Vernon House, Park Place. BvD a 
8.—W. R. Dunlop: The Work and Aims of the West Indian ‘Agricul 
College, Trinidad. 
TUESDAY, Marcu 6. ion 
Lonpon Scoot or Economics, at 5.—A. W. Flux: Statistics, before, 
during, and after the War: Prices. 4 i a 
ScHooL oF ORIENTAL Stupies, at 5.—Sir E. Denison Ross: 
European Intercourse with the Bast. 
WEDNESDAY, Marcu 7. 
University CoLiecs, at 5.—Dr. A. H. ue. a Cultivation of Tissues 
in Vitro (2). (Sueceeding Lecture on March 14. 4 
Kino's Th at 5.—Sir Herbert Jackson: Some Thoughts on the 
Relations of Science and Industry. _ 
THURSDAY, Marcn 8. 
Royat IsstrruTe or Bririss ARcuitects, at 5.—W. Bayes: Painting 
and Architecture. : ’ 
SATURDAY, Marcus 10. : time 
Horniman Museum (Forest Hill), at 3.80.—H. N. Milligan: The Great 
Sea-serpent. 



