328 



NA TURE 



[March 9, 1922 



Royal Society of Arts, at 8.— O. T. Falk : Certain Aspects of the 

 Problem of Exchange Stabilisation. 



Entomological Society of London, at 8. 



Royal Microscopical Society, at 8. — J. E. ]iarnard : The Future 

 of the Microscope in Medical Research. — Dr. H. Hartridge : Mono- 

 cliromatic Illumination. A Low-Power Eyepiece with Large Field. 



THURSDAY, MARCH IG. 



Royal Institution of Great Britain, at 3. — Dr. P. C. Mitchell : 

 Tiie Cinema as a Zoological Method (1). 



Royal Society, at 4.30. — Probable Papers. — Dr. H. H. Dale and 

 C. H. Kellaway : Anaphylaxis and Anaphylatoxins.— J. C. Bramwell 

 and Prof. A. V. Hill : The Velocity of the Pulse Wave in Man.— 

 A. Fleming : A New Bacteriolytic Element found in Tissues and 

 Secretions.— Dr. J. W. Pickering and Dr. .1. A. Hewitt : The Action 

 of " Peptone " on Blood and Immunity thereto. 



LiNNEAN SOCIETY OF LONDON, at 5.— B. M. Griffiths : The Heleoplankton 

 of Three Berkshire Pools.— C. E. Salmon : Three British Plants.— Rev. 

 F. C. R. Jourdain : Bear Island and Spitzbergen, with especial regard 

 to theu- Bu-d-life. 



Royal College of Physicians of London, at 5. — Dr. M. Greenwood : 

 The Influence of Industrial Employment on General Health (3). 



Royal Aeronautical Society (at Royal Society of Arts), at 5.30. — 

 Dr. V. E. PuUin : Radiological- Examination of Materials. 



Institution of Mining and Metallurgy (at Geological Society), at 

 5.30.— L. C. Stuckey : Notes on the Valuation of Ores, Concentrates 

 and Smelter Products.— L. H. Cooke : Methods of Measuring Hori- 

 zontal Angles involving Steep or Precipitous Sights. 



Institution of Electrical Engineers, at 6. — J. G. Hill : Phantom 

 Telephone Circuits and Combined Telegraph and Telephone Circuits 

 worked at Audio Frequencies. 



Chemical Society, at 8.— H. B. Baker: Change of Properties of 

 Substances on Drying. — H. Burton and J. Kenner : The Influence 

 of Nitro-Groups on the Reactivity of Substituents in the Benzene 

 Nucleus. Part VI. The Elimination of Halogen during the 

 Reduction of Halogenated Nitro-Compounds. 



Society for Constructive Birth Control and Racial Progress 

 (at Essex Hall, Essex Street, W.C.2), at 8.— Open Meeting. 



Royal Society of Medicine (Dermatology Section), at 8.30. — Dr. J. 

 Darier : Des cancers 6pith61iaux de la peau. 



FRIDAY, MARCH 17. 

 Royal Society of Medicine (Otology Section), at 5. 

 Institute of Transport (at Royal Society of Arts), at 5. — F. Pick : 



The Operation of an Omnibus Company, with reference to Capacity 



and Cost under Given Conditions. 

 Institution of Mechanical Engineers, at 6. — P. C. Dewhurst : 



British and American Locomotive Design and Practice. 

 Institution of Electrical Engineers (London Students' Section), 



at 7.— C. C. H. Wade : The Electron Theory. 

 Junior Institution of Engineers, at 8. — G. H. Ayres : Power 



Factor Improvement. 

 ROYAL Society op Medicine (Electro-therapeutics Section), at 8.30. 



— Dr. M. Legge and others : Discussion on the Pathological Changes 



produced in Subjects rendered Unconscious by Electric Shock, and 



the Treatment. 

 Royal Institution op Great Britain, at 9. — Principal A. P. Laurie : 



The Pigments and Mediums of the Old Masters. 



SATURDAY, MARCH 18. 

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



Radioactivity (3). 

 Physiological Society (at University College). 



PUBLIC LECTURES. 



(A number in brackets indicates the number of a lecture in a series.) 



FRIDAY, MARCH 10. 



Meteorological Office (South Kensington, S.W.7), at 3.— Sir 



Napier Shaw : The Structure of the Atmosphere and the Meteorology 



of the Globe (8). 

 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 (7). 



SATURDAY, MARCH 11. 

 London Day Training College, at 11. — Prof. J. Adams : The School 



Class (8). 

 Horniman Museum (Forest Hill), at 3.30. — Miss M. A. Murray : 



Cleopatra's Needle and Sun-worship. 



TUESDAY, MARCH 14. 

 Imperial College (Royal School of Mines), at 5.30.— Col. N. T. 

 Belaiew : The Crystallisation of Metals (4). 



WEDNESDAY, March 15. 

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



of Freshwater Algal Biology (5). 

 London (R.F.H.) School of Medicine for Women (Hunter Street, 



W.C.I), at 5.— Dr. H. H. Dale : Some Recent Developments in 



Pharmacology (4). 

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



Radiation and the Constitution of the Atom (2). 

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



Past in Britain (8). 

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



and Eugenics Laboratories (5). Julia Bell : The Inheritance of 



certain Types of Blindness. 



THURSDAY, March 16. 

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



Culture of India (3). 

 University College, at 5.15.— Prof. J. E. G. de Montmorency : 



Welsh and Irish Tribal Customs (6). 



King's College, at 5.30.— Dr. O. Faber : Reinforced Concrete (9). 

 London Day Training College, at 6. — Dr. W. Rosenhain : 

 Aluminium and its Alloys. 



FRIDAY, MARCH 17. 



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

 The Structure of the Atmosphere and the Meteorology of the (31obe 

 (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). . 



SATURDAY, MARCH 18. 



A.M.— P. A. 



The Polytechnic (Regent Street, W.l), at 10.; 



The Romance of Commerce. 

 Horniman Museum (Forest Hill), at 3.30.— H. N. Milligan ; 



Natural History of Elephants. 



CONTENTS. PAGE 



Awards for Discovery and Invention .... 293 

 Principles and Problems of Aeronautics. By Prof. 



G. H. Bryan, F.R.S .296 



The History of Whaling 298 



Inorganic Chemistry as a Science. By Prof. F. G. 



Donnan, F.R.S 300 



Cloud- Forms. By Sir Napier Shaw, F.R.S. . . 301 



Prehistoric Western Europe. By H. J. F. . . 302 



Rosenbusch's Petrology. By Dr. J. W. Evans, F. R. S. 303 



Our Bookshelf 304 



Letters to the Editor :— 



The Langley Machine and the Hammondsport Trials. 



—Griffith Brewer ; The Writer of the Articles 305 

 Some Biological Problems. — Sir G. Archdall Reid, 



KB E 307 



A Rainbow Peculiarity. [Illustrated.) — Major 



William J. S. Lockyer 309 



Flowering Dates of Trees. — Wilson Lloyd Fox . 310 

 Where did Terrestrial Life Begin?— Prof. J. W. 



Gregory, F. R S 310 



The Name of the Gid Parasite.— Prof. T. D. A. 



Cockerell 310 



The Weathering of Mortar. — Nelson M. Richardson 310 



Cancer Research. By Dr. J. A. Murray . • 311 

 The Mechanism of Heredity.— III. [With diagrams.) 



By Prof. T. H. Morgan 312 



Obituary :— 



Sir George Carter, K. B. El By T. B. A. . . 314 



Dr. H. Lyster Jameson 314 



Sir E. C. K. Gonner, K.B.E 314 



Mr. George Cussons 315 



Current Topics and Events 315 

 Our Astronomical Column :— 



Saturn 318 



Meteoric Fireballs 318 



Comparison of Speed of Blue and Yellow Light , 318 



The Illumination of the EcHpsed Moon . . . 318 



Parallaxes and Proper Motions .... 318 



Research Items 319 



Ewing's Theory of Magnetic Induction. {Illust7-ated) 321 



The Profession of Chemistry 322 



Biology of Mosquitoes and the Disappearance of 



Malaria in Denmark . . . . . 323 



The Unity of Anthropology 323 



Geology and the History of London .... 324 



University and Educational Intelligence . . . 325 



Calendar of Industrial Pioneers 325 



Societies and Academies .... . 326 



Official Publications Received 327 



Diary of Societies 327 



NO. 2732, VOL. 109] 



