64 



NATURE 



[January 12, 1922 



TUESDAY, Januabt 17. 



ROIAL HOKTICULTUBAL SOCIETT, at 1. 



lloTAL Institution of Great Britain, at 3.— Dr. F. H. A. Mar- 

 shall: Phyeiology as Applied to Agriculture (1). 



Eugenics Edication Society (nt Koyal Society), at 5.— Sir 

 Frederick JUott: The Neuroses and Psychoses in Relation to 

 Conscription and Eugenics. 



KOTAL Society of Medicine (General Meeting), at 5. 



KoTAL Statistical Society (at Royal Society of Arts), at 5.15.— 

 H. W. Maorosty: Some Current Financial Problems. 



Royal Photographic Society of Great Britain, at 7.— H. V. 

 Law-ley : Automatic Methods of Kinematogrjiph Film Processing. 



JloYAL Anthropological Institute, at 8.15.— Dr. H. S. Stannus : 

 Arts and Crafts from Nyassaland. 



HoYAL Society of Medicine (Pathology Section), at 8.30.— Sir G. 

 Lenthal Cheatle : JMulticentric Origin in a Case of Rodent Ulcer 

 of the Trunk.— J. B. Buxton : Grass-disease and Botulismus.— 

 Dr. A. B. Kosher and Dr. H. A. Fielden : Agglutinins for 

 Bacilli of the Salmonella Group in Sera obtained from the 

 •General Population.— Dr. W. W. C. Topley : The Effect of Dis- 

 persal during the Eiirly Stages of a Mouse-epidemic. 



WEDNESDAY, January 18. 

 Royal College of Surgeons of England, at 5. — Sir Arthur Keith : 



Hunterian Lecture. 

 Royal Society of Medicine (History of Medicine Section), at 5.— 



Dr. j< . P. Wilson : The Plague in Shakespeare's London. 

 Geological Society of London, at 5.30.— Prof. A. C. Seward and 



R. E. Holtum : Jurassic Plants from Ceylon.— F. S. Wallis : 



The Carboniferous Limestone (.-Vvonian) of Broadfield Down 



(Somerset). 

 Royal Meteorological Society, at 7.30.— Annual General Meeting. 



— R. H. Hooker : The Weather and the Crops in Eastern 



England, 1885-1921. 

 Entomological Society of London, at 8.— Annual Meeting. 

 Royal Photographic Society of Great Britain, at 8. — W. Stone- 

 man : Faces, Famous, Fair, and Funny. 

 Royal Microscopical Society, at 8.— Prof. J. Eyre : Microscopy 



and Oyster Culture (Presidential Address). 

 Royal Society of Arts, at 8.— J. S. Huxley : Recent Advances in 



the Determination of Sex in Animals. 

 Society for Constructive Birth Control and Racial Progress 



(at Essex Hall, Essex Street), at 8.30.— Earl Russell and others: 



Discussion : Divorce and Birth Control. 



THURSDAY, January 19. 



Royal Institution of Great Britain, at 3.— S. Gordon : Mountain 

 Birds of Scotland. 



HoYAL Society, at 4.30.— Probable Papers.— Vioi. L. Hill, H. M. 

 Vernon, and D. H. Ash : The Kata-Thermometer as a Measure 

 of Ventilation.— Lt.-Col. C. B. Heald and Major W . S. Tucker : 

 Recoil Curves as Shown by the Hot Wire Microphone.— 



E. W. A. AValker : Studies in Bacterial Variability : The Occur- 

 rence and Development of Dys-agglutinable, Eu-agglutinable, 

 and Hyper-agglutinable Forms of Certain Bacteria.- Marjory 

 Stephenson and Margaret W'hetham : Studies in the Fat Meta- 

 bolism of the Timothy Grass Bacillus. — J. A. Gardner and 



F. W' . Fox : The Origin and Destiny of Cholesterol in the 

 Animal Organism. Part 12 : The Excretion of Sterols in Man. 

 —Dr. S. J. Lewis : The Ultra-violet Absorption Spectra and 

 the Optical Rotation of the Proteins of -the Blood Sera. 



LiNNEAN Society of London, at 5.— Dr. E. Marion Delf : Studies 

 in Macrocystis pyrifera, the Giant Alga of the Southern Tem- 

 perate Zone.— J. L. C. Musters : The Flora of Jan Mayen 

 Island. 



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



Institution of Mining and Metallurgt (at Geological Society), 

 at 5.30.— J. F. Allan: A Typical Example of Magmatio In- 

 jection.— ^V. E. Whitehead : Steep Sights in Underground 

 Surveys. 



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

 Brig. -Gen. R. K. Bagnall-Wild : Aeroplane Installation. 



Institution of Electrical Engineers (Joint Meeting with Institu- 

 tion of Heating and Ventilating Engineers), at 6.— Discussion : 

 The Utilisation of Waste Heat from Electrical Generating 

 Stations, with the following Introductory Papers : C. I. Haden : 

 Utilisation of Exhaust Steam from Electric Generating Stations, 

 and Coal Economy.— F. H. Whysall : The Utilisation of Waste 

 Heat from Electrical Generating Stations. 



Chemical Society, at 8.— Prof. A. Smithells : Models of the Lewis- 

 Langmuir Atom, with Explanations. 



FRIDAY, January 20. 

 Royal College of Surgeons of England, at 5.— Sir Arthur Keith : 



Hunterian Lecture. 

 Royal Society of medicine (Otology Section), at 5.— A. Tweedie : 



Short Account of the Research Work being conducted in Utrecn. 



on the Saccular, Utricular, and Allied Reflexes (continued). 

 Institution of Mechanical Engineers, at 6.— H. S. Denny and 



N. V. S. Knibbs : Some Observations on a Producer-gas Power 



Plant. 

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



Dr. Zimmern, Dr. Agnes Savill, Dr. Sloan-Chesser, Dr. C. A. 



Robinson, Dr. W. J. Turrell, and others : Discussion : Electro- 

 therapy in Gynaecology. 

 Royal Institution of Great Britain, at 9.— Sir James Dewar : 



Soap Films and Molecular Forces. 



SATURDAY, January 21. 

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

 The Evolution of Organ Music (1). 



. PUBLIC LECTURES. 



(.1 number in brackHs indicates the number of a lecture 

 in a series.) 



THURSDAY, January 12. 

 St. John's Hospital for Diseases of the Skin, at 6.— Dr. W. K. 

 Sibley : Electrical Treatments— Diathermy, etc. (Chesterfield 

 Lecture). 



THURSDAY, January 19. 



King's College, at 5.30— Dr. O. Faber : Reinforced Concrete (1). 



St. . John's Hospital for Diseases of the Skin, at 6.— Dr. W. 

 Griffith : Diseases of the Skin Appendages (Chesterfield Lec- 

 ture) . 



FRIDAY, January 20. 



Meteorological Office, South Kensington, at 3. — Sir Napier 

 Shaw : The Structure of the Atmosphere and the Meteorology 

 of the Globe (1). 



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 (1). 



King's College, at 5.30.— Rev. Dr. F. A. P. Aveling : Matter, 

 Jlind. and Man. 



SATURDAY, January 21. 



University College, at 10.30 a.m.— A. Chaston Chapman : Yeast : 

 What it is, and what it does (Lecture for Teachers). 



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

 School Class (1). 



CONTENTS. 



Prof. 



33 



NO. 2724, VOL. 109] 



Classics and Science 



The Hormone Theory of Heredity. By 



W. M. BayHss, F.R.S 



Medicinal Chemicals. By T. A. H 



Some New Text-books on Radio-telegraphy . 



Our Bookshelf 



Letters to the Editor: — 



Chemical Warfare.— Prof. F. Haber ; Sir T. E. 



Thorpe, C.B., F.R.S. . 



Some Problemsin Evolution.— Dr. J. T. Cunningham 

 Optical Observation of the Thermal Agitation of -the 



Atoms in Crystals.— Prof. C. V. Raman . 

 A Fossil Buttercup. {Illustrated.)— 'Pvoi. T. D. A 



Cockerell 42 



The Absorption of Fluorescing Sodium Vapour. 



(///Mj/;'a/£^.)--Prof. John K. Robertson .... 43 

 The Message of Science.— J. J. Robinson . ... 43 

 Terrestrial Magnetic Disturbances and Sun-spots. — 



Father A. L. Cortie, S.J 



Reform of the Calendar : Mean Value of the Year. — 



Arthur Rose-Innes 44 



Units in Aeronautics.— H. S. Rowell 44 



42 



44 



R. M. 



( With 



Aurora. 



A Curious Physiological Phenomenon. - 



Deeley 



Oceanography of the Gibraltar Region 



Diagrams.) By Dr. Jobs. Schmidt . . 

 Photographic Studies of Heights of 



{Illutrated.) By Dr. C. Chree, F.R.S 47 



The Meldola Medal. {Illustrated) 49 



Obituary : — 



Dr. T. A. Chapman, F.R.S. By J. J. W. . . . 50 



Notes 51 



Our Astronomical Column : — 



The Shower of January Meteors 55 



44 



45 



Spectral Evidence of a Persistent Aurora 



Movements in Spiral Nebulse 



A Bright Fireball 



A Notable Exhibition of Physical Apparatus 



Science in Secondary Schools 



Problems of Animal Breeding 



55 

 55 

 55 

 56 

 56 



„ 57 



A Petrological Microscope 5^ 



Archaeology in Mexico 59 



The Treasury Grant to Universities 60 



The Royal Academy Winter Exhibition. By 



60 

 60 

 61 

 61 

 62 

 63 

 63 



J. S. D. 

 Botany of the Argentine Republic 

 University and Educational Intelligence 

 Calendar of Industrial Pioneers .... 



Societies and Academies 



Official Publications Received .... 

 Diary of Societies 



