IIV 



Index 



r Nature, 

 \jOctobtr 7, 1920 



Tasmanian Mammals, Living and Extinct, Studies of. 



Part, ii., H. H. Scott and C. Lord, 796 

 Teachers in the U.S.A., The Supply and Remuneration of, 



731 



Technical : Colleges and the Universities, The Necessity for 

 Close Co-operation Between, Principal C. Coles, 728 ; 

 Education and Mind Training, E. L. Rhead, 439 ; In- 

 stitutions, Association of, Annual General Meeting of 

 the, 22 ; 727 ; Libraries and Intelligence, Major W. E. 

 Simnet, 505 ; Library, The, R. Borlase Matthews, 505 ; 

 Review, Retirement of Major W. E. Slmnett from the 

 Editorship and Direction of the, 722 ; Schools and their 

 part in Adult Education, A. Mansbridge, 23 



Techno-Chemical Receipt Book, Compiled and Edited bv 

 W. T. Brannt and Dr. W. H. Wahl, 739 



Telephonic Transmission : Theoretical and Applied', J. G. 

 Hill, 418 



Telephony and Telegraphy, Multiplex, over Open-circuit 

 Bare Wires laid in the Earth or Sea, Gen. Squier, 467 ; 

 Wireless, Prof. W. H. Eccles, 519 ; without Wires, 

 P. R. Courscy, 5 



Telephotography, A Note on, A.B., 488 



Telescope, The Optimum Magnification of a, M. Battcstini, 



443 



Telescopes, Increasing the Photographic Power of. Dr. Shap- 

 ley. 625 



Tempel's Comet: Return of, 436; 560; M. Fayet, 789; 

 P. Chofardet, 794 [ 



Temperature : Curve, The Daily, Prof. L. T3ecker, 282 ; 

 Life and, 161 ; The Influence of, on the Rigidity of 

 Metals, A. Mallock, 631 ; Variations at 10,000 ft., 

 C. K. M. Douglas, 614; in the North Atlantic Ocean 

 and in the Atmosphere, Drs. B. Helland-Hansen and 

 F. Nansen, 715 



Terra Sigillata, Introduction to the Study of, Dr. F. 

 Oswald and T. D. Price, 240 



Terraces in Chalk Districts, The Mode of Formation of, 

 L. Gentil, 315 



Terre et des Planfetes, L'Origine des formes de la, E. Belot, 

 , 559 . 



T ctanus during the Great War, Prevention of, Major-Gen. 

 Sir David Bruce, 785 



Tetrahedra, Generation of Sets of Four, mutually Inscribed 

 and Circumscribed, C. V. H. Rao and Prof. Baker, 

 379 



Textile : Industries and Technical Education in Canada 

 and the United States, 789; Research in, 118; Students, 

 Chemistry for, B. North, assisted by N. Bland, 382 



Therapeutic Substances offered for Sale, Appointment of a 

 Committee LTpon, 273 



Thermionic : Valve, The, in Wireless Telegraphy and Tele- 

 phony, Prof. J. A. Fleming, 716 ; Valves, The Develop- 

 ment of, for Naval Uses, B. S. Gossling, 559 



Thermo : -couples, Construction of, by Electro-deposition, 

 W. H. Wilson and Miss T. D. Epps, 842 ; -electricity, 

 Recent Progress in, Prof. C. A. F. Benedicks, 499 



Thermostatic Metal, 703 



Thompson : Life and Letters of Silvanus P., A. A. Camp- 

 bell Swinton. 448; Silvanus Phillips, D.Sc, ' LL.D., 

 F.R.S., His Life and Letters, J. S. and H. G. Thomp- 

 son, 448 



Thrush, The First Act of a Young, Honor M. M. Perry- 

 coste, 456 



Thimder and Lightning at Kimberley, Some Statistics of, 

 J. R. Sutton, 507 



Thunderstorms of May 29, The, and the Louth Disaster, 

 468 



Tidal : Friction and the Lunar and Solar Accelerations, 

 Dr. H. Jeffreys, 403 ; in Shallow Seas. H. .Jeffreys, 632 ; 

 Motion in the Irish Sea : Its Currents and its Energy, 

 R. O. Street, 632 ; Power, 427 



Tides in Landlocked and Border Seas, Bays, and Chan- 

 nels, Dr. A. Defant, 466 



Timber : Exhibition, The Empire, A. I^. Howard, 691 , 

 Map, Nos. I to 4, J. H. Davies, 577 



Timbers Grown in France, Forthcoming Researches upon, 

 722 



Time : and Latitude, Methods of Determiningf, C. Puonte, 



Tin : and Antimony, The Separation of, A. Kling and A. 

 'Lassieur, 442 ; Ores, G. M. Davies, 193 



Tissues, Resistance of, to Light and Ultra-violet Rays, 

 L. Vignon, 506 



Topography, Effect of, on Precipitation in Japan, Prof. 

 Terada, 599 



Toronto University : Dr. V. J. Harding appointed Professor 

 of Pathological Chemistry in, 537 ; the Appointment of 

 Prof. A. T. De Lury as head of the Department of 

 Mathematics, 762 



Torquay Natural History Society, Journal of the, Vol. II, 

 No. 6, 788 



Total Solar Eclipse of September 20, 1922, The, A. R. 

 Hinks, 84 



Toxines et Antitoxines, M. Nicolle, E. C6sari, and C. Jouan, 

 67 



Trade Routes of the British Empire in Africa, G. F. Scott 

 Elliott, 274 



Trans-African Flight, The Recent, Lt. L. Walmsley, 624 



Transport, Some National Aspects of, Lord Montagu of 

 Beaulieu, 469 



Tree: Diseases, Manual of, Dr. W. H. Rankin, 577; 

 -growth, Climatic Cycles, etc., Prof. Douglass, 562 



Trichodynamics, Dr. W. Lawrence Balls, 777 



Trioxymethylene : in Powder, The Use of, for the Destruc- 

 tion of the 'Larvre of Mosquitoes, E. Roubaud, 604 ; 

 The Mode of Action of Powdered, on the Larvae of 

 Anopheles, E. Roubaud, 667 



Trobriand Islanders, The Economic Pursuits of the, Dr. B. 

 Malinowski, and others, 564 



Tropical : Aericulture, A College of, 153 ; Control of Aus- 

 tralian Rainfall, E. T. Quayle, 152 ; Departments^ of 

 Agriculture, with Special Reference to the West Indies, 

 Sir Francis Watts, 344 ; Medicine, 33 



Tsetse-Fly Problem, The, R. W. Jack, and others, 503 



Tubercle Bacillus : Culture of the, on a Medium of Auto- 

 lysed Yeast, R. Sazerac, 795 ; The Chemical Compo- 

 sition of the, A. Goris, 604 



Tuberculosis, particularly in connection with the War, 



Tungsten : and the Oxides of Tunefsten, Reversible Re- 

 actions of Water on, G. Chaudron, 411; Preparation 

 and Uses of, in Incandescent Lamp Filaments, etc., 

 A. B. Searle, 339 



Turbine Steels, The Mechanical Properties of. Dr. W. PI. 

 Hatfield and H. M. Duncan, 148 



Turin Academv of Medicine, Award of the Riberi Prize to 

 Prof. G. Vanghetti, 557 



Twins, Influence of the Male on the Production of, 

 Dr. C. B. Davenport, 7155 



Tycho Brahe, Dr. J. K. Fotheringham, 672 



Tvchonis Brahe Dani Opera Omnia, Edidit, I. L. E. 

 Dreyer. Tomus VI, 672 



Typhus Fever, 81 



Ultra-Violet, Extreme, Some New Spark Spectra in the, 



L. and E. Bloch, 27 

 Union Observatory, The, Johannesburg, Circular No. 17, 



7.'59 

 U.S.A. : Increased Demand for Collegiate Education in 

 the, 731 : Army, Psychological Examining and Classi- 

 fication in the, Dr.' R. M. Yerkes, yqK, ; Bureau of 

 Mines, Dr. F. G. Cottrell nominated as Director of the, 

 432 ; Commercial Marbles of the. Physical and Chemi- 

 cal Properties of, D. W. Kessler, 181 : Engineeringr 

 Research in the, A. P. M. Fleming, 598, General Edu- 

 cation Board, Appropriations by the. 602 ; Glass 

 Industry in the. Scientific Research and the. Dr. M. W. 

 Travers, 9 ; National Academy of Sciences, F. D. 

 Adams, M. E. C. Jordan, F. A. L. Lacroix. H. K. 

 Onnes, Sir David Prain, and S. R. y Cajal elected 

 Foreign .'\ssociates of the. 463 ; National Food Consump- 

 tion in the, Prof. R. Pearl, 597 ; National Research 

 Council, Appointment of a Committee on Eugenics, 240 ; 

 Election of Chairman of Divisions of the, 754 ; Elec- 

 tion of Officers of the, 526 ; Prof V. Kellogg, 332 ; 

 Statistics of School Systems in the, for 1917-18, 841 ; 

 Sunshine in the, J. B.' Kincer, 791 



