Nature, 1 



September 29, 1921J 



Index 



xxiu 



Evolution, 197 ; The Cretaceous-Tertiary Boundary in 

 North America, 282 

 Shackleton (Sir Ernest), Impending New Expedition to the 



Antarctic, 602 

 Shackleton (W.), [obituary], 561 

 Shadwell (Dr. A.), The War of the Mines, 763 

 Shakespear (Dr. G. A.), A New Acoustical Phenomenon, 



623 

 Shapley (Dr. H.), Magnitudes in Star Clusters, xi., 94; 

 and Prof. H. D. Curtis, The Distances of the Globular 

 Clusters, 825 

 Sharpe (Sir Alfred), The Backbone of Africa : A Record of 

 Travel during the Great War, with some Suggestions 

 for Administrative Reform, 518 

 Sharpe (Prof. W.), Diagnosis and Treatment of Brain 

 Injuries : with and without a Fracture of the Skull, 

 484 

 Shattock (Prof. S. G.), appointed Erasmus Wilson Lecturer 



at the Royal College of Surgeons of England, 507 

 Shaw (H. K.), The Variable Nebula in Corona Australis, 



634 

 Shaw (Sir Napier), " Absolute " Temperatures in Meteor- 

 ological Publications, 201 ; Meteorological Physics, 66 ; 

 presented with a Portrait of Himself, 562 ; The Air and 

 its Ways (Rede Lecture), 507, 653 ; The Possibility of 

 Dissipating Fog by Artificial Heating, 118 

 Shaw (R. C), appointed a Demonstrator in Anatomy in 



Manchester University, 507 

 Shears (Prof. G. P.), Obstetrics : Normal and Operative. 



Third edition, revised by Dr. P. F. Williams, 484 

 Sheen {A. W.), appointed Professor of Surgery in the 



Welsh JJational School of Medicine, 604 

 Sheppard (Dr. S. E.), The Nature of the Emulsoid Colloid 



State, 73 

 Sheppard (T.), Artefacts and their Geological Age, 587; 

 elected President of the Museums Association, 722 ; 

 Origin of Materials Used in the Manufacture of Pre- 

 historic Stone Weapons in East Yorkshire, 244 

 Sherlock (Dr. R. L.), Rock-salt and Brine, 693 

 Sherrington (Prof. C. S.), Break-shock Reflexers and 

 ** Supra-maximal " Contraction-response of Mammalian 

 Nerve-muscle to Single-shock Stimuli, 509 ; Degree of 

 D.Sc. conferred upon, by Oxford University, 572 

 Shimizu (T.), New Apparatus for Showing the Tracks of 



0-, ;S-, and X-rays, 697 

 Shipley (Sir A. E.). and Prof. E. W^ MacBride, Zoology : 



An Elementary Text-book. Fourth edition, 295 

 Sllberstein (Dr. L.), Elements of Vector Algebra, 616 

 Simmons (A. T.), [obituary article], 820 

 Simpson (Dr. G. C), The Origin of the South-west Mon- 

 soon, 154 

 Singer (Dr. C), Astrology, 771 

 Singh (Prof. B. K.), Phototropism in Solution. Part i., 



373 ; Recent Advances in Stereochemistry, 474 

 Siret (L.), " La Dame de I'^rable," 215 

 Sitter (Prof. W. de), Jupiter's Four Great Satellites, 663 

 Skaife (S. H.), Animal Life in South Africa, 136 

 SkifT (Dr. F. J. V.), [death], 148 

 Skjellerup (J. F.), Detection of Encke's Comet, 825 

 Slipher (E. C), Planetary Photography, 725 ; and G. H. 



Hamilton, The 1920 Opposition of Mars, 24 

 Slipher (Prof. V. M.), Two Nebulae with Unparalleled Velo- 

 cities, 55 

 Sloane (T. G.), Revisional Notes on Australian Carabidae. 



Part vi., 640 

 Slosson (Dr. E. E.), Creative Chemistry : Descriptive of 



Recent Achievements in the Chemical Industries, 618 

 Small (Prof. J.), A Text-book of Botany for Medical and 



Pharmaceutical Students, 777 

 Smart (W. M.), appointed to the John Couch Aciams Astro- 



nomership, Cambridge University, 60 

 Smith (A. J.), awarded a Frank Smart prize at Cambridge 



University, 540 

 Smith (B. S.), and G. F. Partridge, A Method of Measuring 



Frequencies, 350 

 Smith (Eng.-Comdr. E. C), The Centenary of Napoleon, 



302 

 Smith (E. F.), An Introduction to Bacterial Diseases of 



Plants, 168 

 Smith (Sir Francis P.), a Memorial Tablet to, placed on 

 Birthplace of, 597 



Smith (Prof. G. Elliot), Prof. H. W. G. von Waldeyer, 368 

 Smith (Dr. G. F. H.), appointed Assistant Secretary to the 



Natural History Museum, South Kensington, 51 

 Smith (G. M.), Phytoplankton of the Inland Lakes of Wis- 

 consin. Part i., 168 

 Smith (J. Henderson), and Major A. G. Church, Science and 



Civilisation, 684 

 Smith (Reginald A.), appointed Deputy-keeper of the Depart- 

 ment of British and Medieval Antiquities of the British 

 Museum, 51, 722 

 Smith (T.), Tracing Rays through an Optical System, 126 

 Smith (W. C), elected a Fellow of Corpus Christi College, 



Cambridge, 572 

 Smithells (Prof. A.), The Universities and Technological 



Education, 656, 695 

 Smithells (C. J.), High-temperature Phenomena of Tungsten 



Filaments. 2 parts, 702 

 Snyder (T. E.), Injury caused to the Lead Sheathing of 



Aerial Telephone Cables by Scobicia declivis, 343 

 Soddy (Prof. F.), The Atomic Volume of Isotopes, 41 

 Sollas (Prof. W. J.), Saccammina Carteri, Brady, and the 



Minute Structure of the Foraminiferal Test, 92 

 Solomon (M.), A Radiological lonometric Arrangement, 702 

 Solvay (Dr. E.), elected an Honorary Foreign Member of 



the Chemists' Club, New York, 114 

 Somigliana (C), Depth of Glaciers, i., 703 

 Spence (H. S.), Phosphate in Canada, 794 

 Spencer (A. C), The Geology and Ore Deposits of Ely, 



Nevada, 117 

 Spencer (Sir Baldwin), The Cultural Anthropology of Aus- 

 tralian Aboriginals, 410 

 Speyer (E. R.), Ceylon Ambrosia Beetles and their Relation 

 to Problems of Plant Physiology, 93 ; Insects in Rela- 

 tion to the Reproduction of Coniferous Trees, 413 

 Sprague (F. J.), presented with the Franklin Medal and 



Honorary Membership of the Franklin Institute, 369 

 Standen (R.), The Feeding Habits of Squirrels, 822 

 Standley (P. C), The Trees and Shrubs of Mexico, 603 

 Stanners (R. W.), appointed University 'Lecturer in His- 

 torical and Economic Geography, Cambridge University, 

 830 

 Starch (Dr. D.), Educational Psychology, 164 

 Starling (S. G.), An Introduction to Technical Electricity, 



296 

 Stead (G.), Effect of Electron Emission on the Temperature 

 of the Filament and Anode of a Thermionic Valve, 210 

 Steavenson (Dr.), Dubiago's Comet, 405 

 Stebbing (E. P.), The Diary of a Sportsman-Naturalist in 



India, 615 

 Stebbins (Prof. J.), A Photoelectric Study of Algol, 311 

 Steckbeck (Dr. D. W.), The Comparative Histology and 



Irritability of Sensitive Plants, 764 

 Steel (Prof. M.), A Laboratory Manual of Organic Chemistry 



for Medical Students. Second edition, 549 

 Steel (T.), Dental Encrustations and the so-called " Gold- 

 plating " of Sheep's Teeth, 249 ; Ulmite, a Constituem 

 of Black Sandstone, 640 

 Steele (Lieut. G. C), The Influence of Meteorology on Naval 



Warfare, 286 

 Stefanini (G.), Geology of Cyrenaica : i., Eocene Strata, 478 

 Stefansson (V.). awarded the Founder's Medal of the Royal 



Geographical Society, 178 

 Steinmann (Herausgegeben von Prof. G.), und Prof. O. 

 Wilckens, Handbuch der Regionalen Geologic. 20 heft, 

 iii. band, i. abteilung. The IBritish Isles : The Channel 

 Islands, by Thirteen Contributors. Local editor, J. W. 

 Evans, 355 

 Stelfox (S. H.), The Laws of Mechanics : A Supplementary 



Text-book, 134 

 Stephenson (M.), The Silchester Discoveries, 538 

 Stevens (A.), appointed Lecturer in Geography in Glasgow 



University, 66g 

 Stewart (Prof. A. W.), Recent Advances in Physical and 



Inorganic Chemistry. Fourth edition, 262 

 Stewart (Prof. J. D.), Animal Tuberculosis, 410 

 Stocks (Dr. P.), appointed Medical Officer in connection 

 with the Department of Applied Statistics and Eugenics 

 at University College, London, 379 

 Stone (Dr. W. E.), [obituary], 721 

 Stopes (Dr. Marie), elected President of the Society for Con- 



