424 



NATURE 



[November 24, 192 1 



RoTAL SociETT OF Medicink (Epidemiology and State Medicine 

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



UO^TiXY, NovEUBEE 28. 



iNSTiTriE or AcTVARiES, at 5.— S. J. Perry : The Relation between 

 the Course of Wholesale Prices of Commodities and the Market 

 Value of Various Classes of Securities. 



BoiAr, SociETi or Medicine, at 5.— Dr. Guelpa : The Treatment of 

 Diabetes and Gout by Disintoxication. 



Pahadat Society (at Chemical Society), at 8.— J. N. Greenwood: 

 The Effect of Cold Work on Commercial Cadmium. — J. N. Pring 

 and K. O. Ransome : Reaction between Cathodic Hydrogen and 

 Nitrogen at High Pressures.— F. H. Jeffery : The" Electrolysis 

 of Aqueous Solutions of Alkaline Nitrites with a Lead Anode, 

 and an Electromagnetic Determination of the Constitution of 

 the Complex Anion Formed.— T. C. Nugent : An Inhibition Period 

 in the Separation of an Emulsion.— N. R. Dhar ajid N. N. Mittra : 

 Induced Reactions and Negative Catalysis. — Dr. S. J. Lewis and 

 Miss P. ^f. Wood : Exhibition and Description of a New Ad- 

 justable Thermostat for all Temperatures between 0° and 100° C. 



RoTAL Society of Arts, at 8.— A. M. Hind : Processes of Engraving 

 and Etching (Cantor Lecture) (1). 



RoTAL Society of Medicin-e (Odontology Section), at 8.— W. P. 

 Brodcrick : The Endocrine Factor in the Production of Immunitv 

 or Susceptibility of the Teeth to Pain.— S. Jlummery : A Case 

 of Mandibular Sarcoma in an Infant. 



TUESDAY, November 29. 



Royal HonTicrr.TrHAi, Society, at 3.— Dr. A. B. Rendle : Plants of 

 Interest in the Day's Exhibition. 



Medical Officers of \Schooi.s Association (at 11 Chandos Street, 

 W.l), at 5.— R. C. Elmslie : Status of Physical Instructors in 

 Schools. 



Royal Photographic Society of Great Britain, at 7.— C. M. Wil- 

 liamson : Photography and Mechanics : Facts and Possibilities. 



HoYAL Anthropological Institfte (at Roval Societv), at R..30.— F. 

 Balfour : The Archer's Bow in the Homeric Poe;ns (Huxley 

 >remorial Lecture). 



WEDNESDAY. November 30. 



Royal Society, at 4.— Anniversary. 



HOTAL Society of Arts, at 8.— N. Heaton : The Preservation of 

 Stone. 



THURSDAY, December 1. 



LiNNEAN Society of London, at .5.— Prof. W. N. Jones : Note on 

 the Occurrence of Brachiomonas.— J. Burtt-Davy : The Distribu- 

 tion of Salix in South Africa.— Miller Christy: The Problem 

 of the Pollination of the British Primulas. 



TloTAL Aeronattical Society (at Roval Society of Arts), at .5.30.— 

 Oapt. G. de Havilland : Design of a Commercial Aeroplane. 



Tnstitvtion of Electrical Engineers, at 6.— L. J. Steele and H. 

 Martin : The C'yc-arc Process of Automatic Electric Welding. 



Royal Microscopical Society CMetallurgicnl Section), at 7.30.— 

 The Practical Application of Vertical Illuminators in the De- 

 termination of the Structure of ;\retals and Alloys and in 

 Metallographical Research Generally. Exhibition of Various 

 Types of Vertical Illuminators by C. W. Hawkslev and P. Swift. 



■Chemical Society, at 8.- R. Mond and A. Wallis : Some Researches 

 on the Metallic Carbonyls.— R. Mond and A. Wallis : The Action 

 of Nitric Oxide on the Metallic Carbonyls. 



FRIDAY. December 2. 

 TloTAL Astronomical Society, at .5.— Geonhvsieal Discussion : The 



Geological Effects of the Cooling of the" Earth. 

 JrNioH Institition of Engineers (at Caxton Hall), at 8. — B. L. 



Ladkin : Notes on ^laintcnance of Electrical Accumulators. 

 RoTAL Photographic Society of Great Britain, at 8. — M. O. Dell : 



Ideals and Methods in Picture Slaking. 



S.iTURDAY, December 3. 

 ■Gilbert White Fellowship (at 6 Queen Square. W.C.I), at 3.— 

 Prof. G. S. Boulger : The Sundews : Their Kindred and Neigh- 

 bours. 



PUBLIC LECTURES. 



(.'1 number in brackets inilicatex the number of a lecture 

 in a series.) 



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). 



Barnes Hall (1 Wimpole Street, W.l). at 5.1.5.— Prof. E. C. Van 

 Leersum : Dietetics and Public Health (Chadwiok Lecture). 



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

 Recent Advances in Genetics (4). 



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

 tion (4). 



FRIDAY, November 25. 



University College, at 4 30.— Dr. ,T. C. Drummond ; Nutrition (7). 



HoYAL Institute of British Architects, at 5. — B. G. Goodhue and 

 D. Barber : American Architecture. 



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

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



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

 ledge of the Real World (4). 



SATURDAY. November 26. 



U'niversitt College, at 10.30. — Prof. Karl Pearson : Fallacies (Lec- 

 tures for Teachers). 



MONDAY, November 28. 



U.vivERSiTY College, at 5. — k. T. Walmisley : Geometry for En- 

 gineers. 



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

 Falconer: The Wonders of Geology (Swiney Lectures) (10). 



King's College, at 5.30. — H. Moore: Liquid Fuels (4). 



TUESDAY, November 29. 



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

 Scientific Revolution and its Meaning for Philosophy (8) ; The 

 Theory of Creative Evolution ; Dr. W. Brown : Psychology and 

 Psycho-therapy (7). 



Royal Institite" of British Architects, at 6.— R. Unwin : Ameri- 

 can Architecture and Town Planning. 



WEDNESDAY, November 30. 



University College, at 3.— Prof. E. G. Gardner : Nature in the 

 Divina C6inmedia (3). 



Ki.vg's College, at 4.30.— Dr. C. Da Fano : Histology of the Ner- 

 vous System (8). 



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

 of Man (2). 



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

 Falconer,: The Wonders of Geology (Swiney Lectures) (11). 



THURSDAY, December 1. 



University 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) (12V 

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



of the Real World (5). 



CONTENTS. PAGE 



Britain's Food Supply Basis . . ^ 393 



Priestley in America. By Sir T. E. Thorpe, C.B , 



F.R.S 394 



The Actinomycetes. By Dr. W. B. Brierley ... 397 

 Emin Pasha's Last Collections. By Sir H. H. 



Johnston, G.C.M.G., K.C.B 397 



Our Bookshelf 39^ 



Letters to the Editor: — 



Metaphv.sics and Materialism. — Dr. Norman R. 



Campbell ; Prof. H. Wildon Carr 399 



Ilybriditv and the Evolution of Species. — Prof. J. P. 



Lotsy; Prof. R. Ruggles Gates . .... 400 

 Biological Terminology.— Sir G. Archdall Reid, 



K.B.E 401 



The Softening of Secondary X-rays.— S. J Plimpton 402 

 The Molecular Scattering of Light in Liquids and 

 Solids. -Prof. C. V. Raman ... ... 402 



The Tendency of Elongated Bodies to Set in the 

 North and South Direction.— Col. E. H. Grove- 

 Hills, C M.G., F.R.S 403 



Ophion luteus.—'Dt. C. J. Gahan ; R. Stenton . 403 

 Sex-manifestation and Motion in Molluscs. — G. C. 



Robson 403 



Sinistral Limnaea peregra.— Prof. A. E. Boycott, 



F.R.S 403 



Some Problems in Evolution. By Prof. Edwin S. 



Goodrich, F.R.S 404 



Mount Everest. By Lieut. -Col. H. H. Godwm- 



Austen, F.R.S 409 



Obituary : — 



Sir Charles Douglas Fox. By W. C. U. . . . 412 



Prof A. S. Deldpine, By R. T. H 4>2 



M. Henry Bourget. By A. C. D. C 412 



Notes 413 



Our Astronomical Column : — 



The Leonid Meteor Shower .• • .• ^^"^ 



A New Suggestion to Explain Geological Climatic 



Changes 4i7 



Star Catalogues . • 417 



British Research on Tides . ....... 4''* 



The Influence of Egypt on African Death Cere- 

 monies 41^ 



University and Educational Intelligence 4'9 



Calendar of Scientific Pioneers 420 



Societies and Academies 421 



Books Received 422 



Diary of Societies 423 



I 



NO. 2717, VOL. 108] 



