456 



NATURE 



[December i, 192 i 



Demonstration of Histological Material from Experimental Pur 

 pura. — Dr. S. Eajaai : Dysentery Immunisation per Os. 



TFEDIVESDAr, December 7. 



RoTAL Botanic Societx of London, at 3. — Prof. A. W. Biokerton : 

 Gardening (2). 



Royal Institute or PrBLic Health, at 4.— Sir Kenneth Goadby : 

 Lead-poisoning in Industry. 



Geological Societi or London, at 5.30. — S. S. Buckman and J. P. 

 Jackson : Jurassic Chronology. II. Preliminary Studies. A. Cer- 

 tain Jurassic Strata near Eypemount (Dorset). Part I. The Junc- 

 tion Bed of Watton Cliff and Associated Rocks. — J. Stansfield : 

 Banded Precipitates of Vivianite in a Saskatchewan Fireclay. 



Rotal SociExr or Medicine (Surgery Section), at 5.30.— Sir Charles 

 Ballance : Ligation of the Innominate Artery. — Sir Lenthal 

 Cheatle : A New Operation for Inguinal Hernia. 



Institution of Electrical Enginkebs (Wireless Section), at 6. — T. L. 

 Eckersley : An Investigation of Trafismitting Aerial Resistances. 



Institution of Railway Signal Engineers (at Midland Grand 

 Hotel), at 6.— Resumed Discussion on Paper by A. E. Tattersall : 

 Three-position Signalling. 



Institution of Sanitary Engineers (at Caxton Hall), at 7. — S. A. 

 Hill-Willis : Town Planning. 



Royal Microscopical Society (Biological Section), at 7.30. 



Entomological Society of London, at 8. • 



Royal Socikty or Arts, at 8. — E. Cammaerts : Literature and Inter- 

 national Relations. 



Society of Public Analysts (at Chemical Society), at 8. — B. S. 

 Evans : The Estimation of Small Quantities of Antimony in 

 Copper and Brass.— A. Lucas : The Inks of Ancient and Modern 

 Egypt.— C. L. Claremont : Notes on the Analysis and Use of Red 

 Squill in Rat Poisons. 



Royal Society of Medicine (Neurology Section) (at Hospital for 

 Paralysis, Maida Vale), at 8.30.— Clinical Meeting. 



Royal Society of Medicine, at 9. — Sir Berkeley Moynihan : Medicine 

 in Art. 



THURSDAY, December 8. 



Royal Society, at 4.30.— Probable Papers. — Lord Bayleigh : A Study 

 of the Glow of Phosphorus : Periodic Luminosity and Action of 

 Inhibiting Substances (with Experimental Demonstration). — 

 Lord Rayleigh : The Aurora Line in the Spectrum of the Nig-ht 

 Sky.— W. D. Womerslev : The Energy in Air, Steam, and Carbon 

 Dioxide from 100° C. to 2000° C— Lt.-Col. J. W. Gifford : Atmo- 

 spheric Pressure and Refractive Indices, with a Corresponding 

 Table of Indices of Optical Glass.— H. P. Waran : A. New Form 

 of Interferometer.— H. Harle : On the Viscosities of the Hydrogen 

 Halides. 

 ' Royal College of Surgeons of England, at 5.— Sir Charles Bal- 

 lance : A Glimpse into the History of the Surgery of the Brain 

 (Thomas Vicary Lecture). 



Royal Society of Medicine (Balneology and Climatology Section), 

 at, 5.30. — Dr. A. G. S. ^M.t Itemed : The Relation of Atmospheric 

 Electrical Variations to the Incidence of Epileptic Fits.— Dis- 

 cussion on the Organisation of the Section. 



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

 at 7.30.— L. C. Martin : The Physical Alcaning of Spherical Aberra- 

 tion. — Dr. F. Lloyd Hopwood : An Autostrobosc-ope and an In- 

 candescent Colour Top.— Lt.-Col. Gifford: Achromatic One Radius 

 Doublet Eyepieces. 



Chemical Society (at Institution of Mechanical Engineers), at 8.— 



Prof. J. W. Gregory : The Genesis of Ores. 

 Institute of Metals (London Section) (at 85 The Minories), at 8.— 

 S. A. E. Wells : Casting in Metal Moulds. 



Harveian Society (at Medical Society of London), at 8.30. — Sir John 

 Charlton Briscoe, Bart., Sir Sidney Russell Wells, Dr. G. H. 

 . Hunt, and Sir William Willcox : Discussion : Is the Anginal 

 Syndrome only of Cardiac Origin? 



FRIDAY, December 9. 



Association of Economic Biologists (in Botanical Lecture Theatre, 

 Imperial College of Science and Technology), at 2.30.— Prof. J. H. 

 Priestley and others : Discussion : The Resistance of the Normal 

 and Injured Plant Surface to the Entry of Pathogenic Organisms. 



Royal Astronomical Society, at 5. 



Physical Society of London (at Imperial College of Science and 

 Technology), at 5. — G. A. Sutherland and L. Clark: The 

 Average Range of -rays in Different Metals. — Prof. E. Wilson : 

 The Sensitivity of Ballistic Galvanometers. — Prof. R. LI. Jones : 

 The Determination of the Damping Decrement of a Tuning Fork. 



Dr. E. A. Owen : The Estimation of the Radium Content of 



Radio-active Luminous Compounds. 



HoYAL Society of Medicine (Clinical Section), at 5.30. 



Institution of Mechanical Engineers (Informal Meeting), at 7.— 

 Continuation of Discussion on Ball and Roller Bearings : Some 

 Recent Types and Criticisms. 



Royal Society of Medicine (Electro-therapeutics Section), at 8.30. — 

 Dr. Carelli : Demonstration of his Method of Radioscopic Ex- 

 amination with the Help of Gas Injections.— Dr. Riddell : Demon- 

 stration of a Simple Apparatus for Making Serial Radiographs 

 of Pyloric Region in the Horizontal and Upright Positions. 



Royal Society of Medicine (Ophthalmology Section), at 8.30. — 

 Clinical Evening. 



PUBLIC LECTURES. 



(A number in brackets indicates the number of a lecture 

 in a series.) 



THURSDAY, December 1. 

 TJNIVER.S1TY College, , at 5.— Prof . J. E. G. De Montmorency : Feu- 

 dalism in Western China and in Africa (5). 

 -Imperial College of Science and Technology, at 5.30.— W. Bateson : 

 Recent Advances in Genetics (5). 



FRIDAY, December 2. 

 University College, at 4.30.— Dr. J. C. Drummond : Nutrition (8). 

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



Falconer: The Wonders of Geology (Swiney Lectures) (12^. 

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



of the Real World (5). 



MONDAY, Dbcembeb 5. 

 University College, at 5.30.— Prof . A. Wolf : The Literature of 



Science. 

 Kino's College, at 5.30.— Dr. W. R. Ormandy : Liquid Fuel En- 

 gines (4). 



TUESDAY, December 6. 

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

 Scientific Revolution and its Meaning for Philosophy (9). — Dr. 

 W. Brown: Psychology and Psycho-therapy (8). 



WEDNESDAY, December 7. 

 School of Oriental Studies, at 12. — Miss Alice Werner; Bt>ntu 



Tribes of East Africa (5). At 5.— Dr. T. 6. Bailey: The Sansis, 



or Thieves of India : their Language, History, and Customs. 

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



of Man (3). 



THURSDAY, December 8. 

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



Vestiges in America and Elsewhere (6). 

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



Recent Advances in Genetics (6). 

 King's College, at 5.30. — H. W. Fitz-Simons : apridge Construe- 1 



tion (5). 

 Barnes H.4LL (1 Wimpole Street, W.l), at 8.— Dr. C. Singer: The' 



History of the Doctrine of Infection (Chadwick Lecture). 



FRIDAY, December 9. 

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

 of the Real World (6). 



SATURDAY, December 10. 

 Imperial College of Science and Technology, at 10.30 a.m.— Prof. 

 W. W. Watts : Geology &s a Basis for Geography (Lectures for 

 Teachers). 



CONTENTS. PAGE 

 A Proposed National Institute of Industrial Micro- 

 biology. By A. Chaston Chapman, F.R.S. 425 

 Currents of Mathematical Thought. By G. B. M. 427 



Science and the Community 429 



William Osier 43° 



.... 431 



Our Bookshelf .... 



Letters to the Editor:— 



Relativity and Materialism.— Hugh Elliot . . 

 Metallic Colouring of Beetles. — A. Mallock, F.R.S. 

 The Tendency of Elongated Bodies to Set in the 



North and South Direction. — E. A. Reeves . 

 Table for the Duration of Sunset.— Dr. Willard J. 



Fisher 



Relativity : Particles Starting with the Velocity of 



Light. — Prof. Kdward Kasner 



The Softening of Secondary X-rays.— Dr. J. A. Gray 



University Relief for Central Europe and Russia. — 



Right Hon. Sir Maurice de Bunsen, Bart., 



G.C M.G 



Ophion luteus.— Right Hon. Sir Herbert Max- 

 well, Bart., F.R.S 



The Zoological Record.— V/. L. Sclater ... 

 Reflection from Cylindrical Surfaces.— C. O. Bart- 

 rum 



Science in Westminster Abbey. By Eng. -Com. 



Edgar C. Smith, O.B.E., R.N 



The Nitrogen Problem 439 



Obituary : — 



Emile Boutroux. By H. W. C. , 441 



Prof. Peter Thompson 44i 



Notes 442 



Our Astronomical Column : — 



The December Meteors 447 



The Origin of Comets 447 



Observations of Mars at Flagstaff 447 



The Coming of Age of Long-distance Wireless 

 Telegraphy and some of its Scientific Problems 

 Physical Science at the British Association . . 



The Ethnology of the Sudan 



Fuel Research. By J. W. C 



University and Educational Intelligence 451 



Calendar of Scientific Pioneers 45^ 



Societies and Academies 453 



Books Received 454 



Diary of Societies 455 



432 



432 



433 



433 



434 

 435 



435 



436 

 436 



436 



437 



448 

 448 

 450 

 451 



NO. 2718, VOL. 108] 



