392 



NATURE 



[November 17,. 1921 



Andrews and Titanohyrax, g.n. : A Revision of the Oenera of 

 Hyraooids from the Fayum, Egypt. _ . 



Women's Engineering Society (at 26 George Street, W.l),_at 6.15. — 

 Miss Mary Abbott : Women and the Conquest of the Air. 



QiiEKETT Microscopical Cub, at 7. 



RoTAL Photographic Societt or Great Britain, at 7. — A.. C. 

 Braham : Demonstration of the Latest Developments and Improve- 

 ments in the Carbro Process. 



Institute or iNDrsTRiAL Administration, at 7.30. — H. Lesser : Un- 

 employment Insurance for Individual Firms. 



Society for Co-vstrixtive Birth Control and Racial Progress (at 

 Esse.x Hall, Strand), at 8.— Dr. Marie Stopes, the Mayor of Isling- 

 ton, A. Harrison, and others : Resolution in Connection with 

 Unemployment and Birth Control. 



Society of Chemical Indt^stry (Chemical Engineering Group), and 

 Institution of Mechanical Engineers (at Institution of Elec- 

 trical Engineers).—.!. H. West: The Claude Synthetic Ammonia 

 Process and Plant. 



WEDNESDAY, November 23. ' 



Royal Institite of Public Health, at 4. — R. P. White : Do We 

 Neglect the Industrial Skin Sufferer? 



Royal Society of Medicine, at 5. — Dr. G. Monod : Syphilis of the 

 Stomach. To be followed bv Sir Berkelev Moynihan, Dr. C. 

 Bolton, Dr. A. F. Hurst, Prof. McNee, H. Paterson, J. Sherren, 

 and A. J. Walton. 



Geological Society of London, at 5.30.— W. K. Earle : The Lower 

 Carboniferous Rocks of West Cumberland.— W. G. St. J. Shan- 

 non: A Composite Sill at Newton Abbott (Dfevon). 



Royal Society of Arts, at 8. — Prof. .T. A. Fleming : The Comintr 

 of Age of Long-distance Wireless Telegraphv and Some of its 1 

 Scientific Problems (Trueman Wood Lecture). 



THURSDAY, November 24. 



Royal Society, at 4. — Special General ^Meeting to consider the 

 Annual Report of Council. At 4.30. — Probable Papers. — K. Sassa : 

 (1) Observations on Reflex Responses to the Rhythmical Stimu- 

 lation in the Frog. (2'> The Effects of Constant Galvanic 

 Currents upon the Mammalian Nerve-muscle and Reflex Prepara- 

 tions. — E. Ponder : The Hsemolytic Action of Sodium Glycolate. 

 — Dorothy J. Lloyd and C. Mayes : The Titration Curve of 

 Gelatine.— D. H. de Souza and J. A.. Hewitt : Idio-Tentrieular 

 Periodicity. 



Child-Study Society (at Royal Sanitary Institute), at 6. — Dr. C. 

 Hay-Murray : Phrenology as an Aid to Education. 



Concrete Institute, at 7.30. — E. F. Etchells : Presidential Ad- 

 dress. 



Optical Society (at Imperial College of Science and Technology), 

 at 7.30.— Prof . P. .1. Cheshire : Polarising Apparatus. 



Royal Microscopical Society (Metallurgical Section), at 7.30. — 

 C. W. Hawksley and P. Swift: Various Types of Vertical Illu- 

 minators. 



Royal Society of Medicine (Urology Section), at 8.30. — Discus- 

 sion on Renal Function Tests.— S/iorf Opening Papers by J. J. 

 Everidge. J. S. Jolv. J. B. Maealrine. Dr. >lacLean and C. 

 Nitch, Dr. M. Wallis and G. Ball. To be followed by Sir 

 Cuthbert Wallace. Dr. L. Brown. F. Kidd, Dr. Marrack, G. E. 

 Neligan. A. E. Webb- Johnson, and A. C. Morson. 



FRIDAY. November 25. 



Royal Society of Arts (Dominion and Colonies and Indian Sec- 

 tions, .loint Meeting), at 4.30.— A. H. Ashbolt : An Imperial 

 Airship Service. 



Physical Society of London (at Imperial College of Science and 



Technologv, at 5. — Hvgrometrv : Dr. E. Griffiths, F. J. W. 



. Whipple, 'Principal Skinner. W. Watts, Dr. G. A. Shakespear, 



Prof. A. M. Tyndall. H. G. Mavo, and Prof. A. P. Chattock. 



Followed bv a discussion to be opened bv Sir Napier Shaw. 



Royal Society of Medicine (Study of Disease in Children Sec- 

 tion), at 5.— Miss Eva Morton: Report on a Fatal Case of 

 Bullous Eruption. 



Institution of Production Engineers iat Institution of Mechani- 

 cal Engineers), at 7.30.— A. F. Guyler : Drawings and Pro- 

 duction. 



Junior Institution of Engineers, at 8.— G. F. Shotter : Electro- 

 magnetic Instruments : Problems in their Design and Con- 

 struction. . 



Royal Society op Medicine (Epidemiology and State IJredicine 

 Section), at 8.— Dr. J. P. Kinloeh : Metabolism in Fevers. 



PUBLIC LECTURES. 



(A number in brackets indicaten the number of a lecture 



in a series.) 



THURSDAY, November 17. 



University College, at 5.— Prof. J. E. G. De Montmorency : The 



Background of Non-European Feudalism (3). 

 Imperial College of Scif.nce and Technology, at 5.30.— W. Bateson : 



Recent Advances in Genetics (3). 

 BiRKBECK College, at 7.30.— Prof . F. Soddy : The Bearing of Physi- 

 cal Science on Economics (2). 



FRID.\Y. November 18. 

 University College, at 4.30.— Dr. J C. Drummond : Nutrition (RK 

 Imperial College of Science and Technology, at 5.30.— Dr. J. D. 



Falconer: The Wonders of Geology (Swinev Lectures) (6). 

 University College, at 8.— Prof. G. Dawes Hicks : Our Knowledge 

 of the Real World (3). 



MONDAY, November 21. 

 Imperial College of Science and Technology, at 5.30— Dr. J. D. 

 Falconer: The Wonders of Geology (Swiney Lectures) (7). 



King's College, at 5.30.— Dr. W. R. Ormandy : Liquid 'Suel 

 Engines (3). 



TUESDAY, November 22. 



Ki.vg's College, at 5.30.— Prof. H. Wildon Carr : The Modern 

 Scientific Revolution and its Meaning for Philosophy (7) ; The 

 Pragmatic Theory of the Intellect.— Dr. W. Brown : Psychology 

 and Psycho-therapy (6). 



WEDNESDAY, November 23. 



King's College, at 4.30.— Dr. C. Da Fano : Histology of the 

 Nervous Svstem (7). 



School of Oriental Studies, at 5.— Miss Alice Werner: ine 

 Swahili Poem on the Ascension of the Prophet. „ , ^. 



University College, at 5.— Prof. G. Elliot Smith : The Evolution 

 of Man (1). r on T. T n 



Ijii'erial College of Science and Technology, at 5.30.— Ur. J. n. 

 Falconer: The Wonders of Geology (Swiney Lectures) (8). 

 THURSDAY, November 24. 



University College, at 2.30.— Miss M. A. Murray: Ancient Sur- 

 vivals in Modern Egypt. „ ,, . 



University College, at 5.-Prof. J. E. G. De Montmorency: 

 Feudalism in India (4). ^ , ^^ n, tr 



Barnes Hall (1 Wimpole Street, W.l). at 5.15.-Prof. E. C. Van 

 Leersum: Dietetics and Public Health (Chadwick L^'ctui^). 



Imperial College of Science and TecHjVOlogy, at 5..30.— W. Bateson: 

 Recent Advances in Genetics (4). „ ., ^ . 



King's College, at 5.30.— H. W. Fitz-Simons : Bridge Construc- 

 tion (4). 



FRIDAY, November 25. 



University College, at 4 30.— Dr. J. C. Drummond : Nutrition (7). 



Imperial College of Science and Technology, at :).30.— Dr. J. U. 

 Falconer: The Wonders of Geology (Swiney Lectures) (9). 



University College, at 8.-Prof. G. Dawes Hicks: Our Know- 

 ledge of the Real World (4). 



SATURDAY. November 26. „ „ . ,^ 



University College, at 10.30.-Prof. Karl Pearson : Fallacies (Lec- 

 tures for Teachers). 



NO. 2716. VOL. 108] 



CONTENTS. PAGE 



University Grants .... 36' 



Psychological Medicine 302 



British Mammals. By J. G. M 3^4 



Plant Biochemistry 3o4 



Our Bookshelf . 3o5 



Letters to the Editor:— -,u u w 



Metallic Coloration of Chrysahds.— The Hon. ti. 



Onslow « • ; A .u ■ ^ 



The Softening of Secondary X-rays.— Prof. Arthur 



H. Compton . • . • ; • • ^^ 



The Colour of the Sea.— Prof. C. V. Raman 367 

 The " Proletarisation of Science" in Russia.— Prot. 



Bohuslav Brauner ; • 3o7 



Biological Terminolog)'.-J. T. Cunriingham .368 



Reflection "Halo" of (Semi-)Cylindrical Surfaces. 



(With Diagram.)-]. H. Shaxby . . . ._ • • 369 

 Microscope Illumination and Fatigue. — H. J. 



Denham ^ ' ' \i '■ ' ^^ 



The Aurora Borealis of September 28-29.— Major 



William J. S. Lockyer • . • • • 37° 



Applied Anthropology. -Dr. N. Annandale . 370 

 Use of Carborundum for Ruling Test Plates.— W. 



G. Cady .... 37° 



Bee-sting and Eyesight.-J. W. Gifford ..... 37o 



The Age of the Earth. -Dr. Harold Jeffreys . . 370 

 A New Cave Man from Rhodesia, South Africa. 



Bv Dr. Arthur Smith Woodward, F.R.S . . . . 37 1 

 Problems of Physics. By Prof. O. W. Richardson, 



D Sc, F.R.S .••;,• •372 



The Botanic Gardens, Victoria, Cameroons 



Province, Nigeria. [Illustrated.) . . , 377 



Obituary: — 



Dr. F. W. Passmore i'^ 



Dr. Oscar Montelius 379 



Notes ^ 



Our Astronomical Column : — 



Bright Assemblage of Morning Stars . • " ' * ^°4 



Medieval Astronomical Instruments m India . . . 3^4 



BritSrictelitific Instrument Research Association ^85 



Arctic Medusae • • • ; ^ol 



University and Educational InteUigence . ^^° 



Calendar of Scientific Pioneers J^^ 



Societies and Academies ' ' loi 



Books Received ^^j 



Diary of Societies ■'^ 



