364 



NA TURE 



[March 16, 1922 



Royal Statistical Society, at 5.15. — J. Y. Hart : Sickness Data 



of Public Elementary Sciiool Teacliers in London 1904-1919. 

 MiNERALOGicAL SOCIETY (at Geological Society), at 5.30.— Sir William 



Bragg : Recent X-ray work on the Crystal Structure of Organic 



Substances. 

 Zoological Society of London, at 5.30. — G. Blaine : Notes on the 



Zebras and some Antelopes of Angola. — R. I. Pocock : The External 



Characters of some Histricomorph Rodents. — H. B. Hogg : Some 



Spiders from South Annam. 

 Institution of Civil Engineers, at 6. — W. Willox : All-Electric 



Automatic Power Signalling on the Metropolitan Railway. 

 Royal Photographic Society of Great Britain, at 7. — S. Bridgun : 



Landscape from the Practical Side. 

 ROntgen Society (at Institution of Electrical Engineers), at 8.15. — 



Sir Oliver Lodge : Magnetism— and the Ether (Fifth Silvanus 



Thompson Memorial Lecture). 



WEDNESDAY, MARCH 22. 



Geological Society of London, at 5.30.— Sir Charles J. Holmes 

 Lionardo da Vinci as a Geologist. 



Royal Society of Arts, at 8. — Prof. A. P. Laurie : The late Mr. 

 Holman Hunt's Experiments on the Permanency of Artists' Oil 

 Colours. 



THURSDAY, MARCH 23. 



Royal Institution of Great BrIitain, at 3.— Dr. P. Chalmers 

 Mitchell : The Cinema as a Zoological Method (2). 



Royal Society, at 4.30.— Probable Papers.—Sh Richard Glazebrook : 

 The Specific Heats of Air, Steam, and Carbon Dioxide.— Lord 

 Rayleigh : A Photographic Spectrum of the Aurora of May 13- 

 15, 1921, and Laboratory Studies in connection with it. — F. A. 

 Freeth: The System : Nas-COj-NaCl-H^O.-M. A. Catalan : 

 Series and other Regularities in the Spectrum of Manganese. — 

 D. W. Dye : Calculation of a Primary Standard of Mutual Induct- 

 ance of the Campbell Type and Comparison of it with the similar 

 N.P.L. Standard.— P. E. Shaw and N. Davy : The Effect of Tempera- 

 ture on Gravitative Attraction. 



Royal College of Physicians of London, at 5. — Dr. A. Felling : 

 The Interpretation of Symptoms in Disease of the Central Nervous 

 System (2). 



Child-Study Society (at Royal Sanitary Institute), at 6. — F. Whelen : 

 The League at Work (League of Nations Union). 



Concrete Institute, at 7.30. — S. F. Staples : Floating Docks. 



FRIDAY, March 24. 



Royal Society of Arts (Indian Section), at 4.30. — Prof. H. E. Arm- 

 strong : The Indigo Situation in India. 



Physical Society of London (at Imperial College of Science and 

 Technology), at 5. 



Institution of Production Engineers (at Institution of Mechanical 

 Engineers), at 7.30. — E. Fairbrother : Inspection Methods. 



J UNiOR Institution op Engineers, at 8. 



Royal Institution of Great Britain, at 9. — Prof. F. G. Donnan : 

 Auxiliary International Languages. 



SATURDAY, MARCH 25. 

 Royal Institution of Great Britain, at 3. — Sir Ernest Rutherford : 

 Radioactivity (4). 



PUBLIC LECTURES. 



(A nniiibe,r in brackets indicate'^ the numher of a lectii,re in a series.) 



FRIDAY, MARCH 17. 



Meteorological Office (South Kensington), at 3. — Sir Napier Shaw : 

 The Structure of the Atmosphere and the Meteorology of the Globe 

 (9). 



King's College, at 5. — Prof. R. Robinson : Orientation and Con- 

 jugation in Organic Chemistry from the Standpoint of the Theories 

 of Partial Valency and of Latent Polarity of Atoms (3). 



Tavistock Clinic for Functional Nerve Cases (at Mary Ward 

 Settlement, Tavistock Place, W.C.I), at 5.30.— Dr. H. C. Miller : 

 The New Psychology and its Bearing on Education (8). 



Birkbeck College, at 8. — F. Hodges : Trade Unionism. (Meeting 

 arranged by the London Branch of the National Union of Scientific 

 Workers.) 



SATURDAY, March 18. 



The Polytechnic (Regent Street, W.l), at 10.30 a.m. — P. A. Best : 

 The Romance of Commerce. 



HORNIMAN Museum (Forest HiU), at 3.30.— H. N. Milligan : The 

 Natural History of Elephants. 



MONDAY, MARCH 20. 

 Royal Society of Medicine, at 5. — Prof. H. Roger : Les fonctions du 

 Poumon. 



TUESDAY, MARCH 21. 

 King's College, at 5.30.— F. H. Rolt : Accurate Measurements in 



Mechanical Engineering : The Use and Testing of Gauges (5). 

 University College, at 5.30. — Col. W. M. St. G. Kirke : Imperial 

 Defence as affected by the War (2). 



WEDNESDAY, March 22. 

 School of Oriental Studies, at 12. — Miss Alice Werner : Bantu 



Mythology and Folklore (5). 

 East London College, at 4. — Prof. F. E. Fritsch: Certain Aspects 



of Freshwater Algal Biology (6). 

 School of Oriental Studies, at 5. — M. de Z. Wickremasinghe : Tea 



and Rubber Industries in Ceylon. 

 King's College, at 5.15. — Prof. N. Bohr : The Quantum Theory of 



Radiation and the Constitution of the Atom (3). 

 HORNIMAN Museum (Forest Hill), at 6.— W. W. Skeat : The Living 



Past in Britain (9). 

 University College, at»8. — The Current Work of the Biometric and 



Eugenics Laboratories (6). Dr. M. Greenwood : Occupational 



Mortality. 



THURSDAY, MARCH 23. 

 Royal Society of Medicine, at 5. — Prof. A. ChaufTard : Syndrome 



Humoral de la Goutte. 

 School of Oriental Studies, at 5. — ^Dr. L. D. Barnett : The Hindu 



Culture of India (4). 

 King's College, at 5.30. — Dr. O. Faber : Reinforced Concrete (10). 

 Royal Institute op British Architects, at 8.— H. E. Stllgoe : 



Water (1) : Its Storage and Filtration (Chadwick Lecture). 



FRIDAY, March 24. 

 Meteorological Office, (South Kensington), at 3. — Sir Napier Shaw : 



The Structure of the Atmosphere and the Meteorology of the 



Globe (10). 

 King's College, at 5.30. — Dr. G. Cook : Some Recent Advances in 



our Knowledge of the Strength of Materials. 



SATURDAY, MARCH 25. 

 HORNIMAN Museum (Forest Hill), at 3.30 —Dr. E. Marion Delf : Science 

 and the Food we eat. 



CONTENTS. PAGE 



The Melbourne University Bill 329 



Greek Mathematics. By Prof. D'Arcy W. Thompson, 



C.B., F.R.S 330 



Entomology and Malaria. (I/hisiraied.)— By 'Lieut- 

 Col H. ]. Walton, l.M.S 334 



Berber Surgery and Sport in the Aures Mountains . 336 

 The War and the Royal Engineers . -336 



Our Bookshelf 337 



Letters to the Editor : — 



A Magnetic Model of Atomic Constitution.— J. K. 



Marsh and Prof. A. W. Stewart . . . 340 



Nature of Vowel Sounds.— Sir R. A. S. Paget, Bart. 341 

 Protective Colloids — A Pretty Lecture Experiment. — 



Dr. J. Newton Friend 341 



A Problem in Economics. — E. G. Bilham . . 341 



Age Incidence of Influenza. — Gerard W. Butler . 342 

 Calcium Carbide and the Board of Trade. — Prof. F. 



Soddy, F.R.S., and H. E. A 343 



The Hormone Theory of Heredity. — By Dr. J. T. 



Cunningham 343 



Neon Lamps. — W. E. Curtis .... 343 



Photosynthesis. By Prof. E. C. C. Baly, F.R.S. . 344 

 The Migration of British Swallows. By Dr. A. 



Landsborough Thomson, O. B. E 346 



Obituary : — 



Prof. Benjamin Moore, F.R.S. By L. H. . . 348 



M. Camille Jordan. By W. E. H. B. . 349 



Current Topics and Events 349 



Our Astronomical Column : — 



Partial Solar Eclipse 352 



Photography of the Ultra-Violet Solar Spectrum . 352 



A Criticism of Majorana's Theory of Gravitation . 352 



The Definition of a Nova 352 



Stellar Magnitude of the Ringless Saturn . . . 352 



Research Items 353 



Carbon Monoxide in Gas. By Prof J. W. Cobb, 



C.B.E 355 



The Brain of Rhodesian Man 355 



Evolutionary Faith and Modern Doubts. By R. R. G. 356 



The Teeth of the Nation 356 



The Brown Bast Disease of the Para Rubber-tree. 



By Dr. S. E. Chandler 357 



Dairy Cattle and Milk Production. By W. E. B. . 360 

 University and Educational Intelligence . . .360 



Calendar of Industrial Pioneers 361 



Societies and Academies 361 



Official Publications Received 363 



Diary of Societies 363 



NO. 2733, VOL. 109] 



