XVlll 



Index 



r Nature, 

 \_At-ril 15, 1920 



Stapfer and Moleski, Snowfalls, 618 



Starck (H. P.), appointed Lecturer in Chemistry at the 



Bradford Technical College, 345 

 Stark (E. E.), The ElTect of Low Po" er-factor from the 



Viewpoint of Electric- Power Station Of>erators, 517 

 Stark (Prof. H.), awarded the Nobel Prize of 1919 for 



Physics, 318 

 Stead (Dr. J. E.), Investigations on Some Ternary Alloys 

 of Tin, Antimony, and Arsenic, 448 ; nominated as Presi- 

 dent of the Iron and Steel Institute. 340 

 Steel (T.), Water from the Roots of the Red Malice, 20 

 Steenwijk (J. E. de Vos Van), The Transit Circle, 80 

 Stefansson (V.). Living off the Country, 118 

 Step (E.), Insect Artizans and their Work, 132 

 Stephen (H.), and Prof. H. B. Di.xon, The Discovery of 



Chemical Elements since i86q, 221 

 Stephens (J. G.), K New Method of Measuring Molecular 



Weights, 555 

 Sterling (J. W.), Bequest to Yale University, 67 

 Stewart (Dr. J. G.), appointed Lecturer in Engineering at 



University College, London, 107 

 Stewart (J. S.), The Rocky Mountain Belt in Alberta. 672 

 Stirling (the late Sir Edward), and E. R. Waite, Description 

 of Toas, or .^ustralian Aboriginal Direction .Signs, 64^ 

 Stoddart (Dr. W. H. B.), Mind and its Disorders. Third 



edition, 624 

 Stokes (Dr. A. C), Aquatic Microscopy for Beginners ; or. 

 Common Objects from the Ponds and Ditches. Fourth 

 edition, 498 

 Straehling (C), The Radio-activity of Uranium, 450 

 Strassmaier (Father' J. N.), [death], 506 ; [obituary], 540 

 Strathcona (Lord), Legacy of, to Yale University, 146: 

 (E.\ors. of the late). Gift to the Institute of Parasitology, 

 Cambridge University, 364 

 Stratton (Mr.), Types of Spectra occurring in the History 



of Nova Geminorum, 454 

 Stromeyer (C. E.) Memorandum for iqiS-ig on Steam 

 Boilers and Economisers, 675 ; The Study of Nationali- 

 ties, 490 

 Stroobant (Prof.), Nova .^quilae, 676 ; The Constitution of 



the Ring of Minor Planets, 676 

 Stuart (Prof. H. W.), College Studies, 490 

 Stuart (Dr. M.), The Deposits of Potash Salts in the 



Punjab Salt Range and Kchat, 268 

 Stuart (Dr. T.), appointed Lecturer in Mathematics at the 



Loughborough Technical College, 67 

 Suffern (C). The Migration of Birds over the Mediterranean 



Sea, 418 

 Sulman (H. L.), awarded the Gold Medal of the Institution 

 of Mining and Metallurgy, 573 ; The Study of Flota- 

 tion, 401 

 Sunier (Dr. .\. L. J.), .Stomatopoda in the Fishery Station 



and the Museum at Buitenzorg, J46 

 Sussmilch (C. v\.), and Prof. T. W. Edgeworth David, 

 Seajence and Correlation of the Permo-Carboniferous 

 and Carboniferous Rocks of N.S.W. Part i., 587 

 Swann (H. Kirke), .\ Synoptical List of the .\ccipitres 



(Diurnal Birds of Prey), Parts i. and ii., 529 

 .Swinton (.\. A. Campbell), Power from the Sun, 3q2, 532 

 Sykes (.Major-Gen. Sir F. H.), Imperial .\ir Routes, 634 



Tanret (G.), The MielUe of the Poolar, 367 



Tansley (A. G.), appointed University Lecturer in Botany 



in Cambridge University, 42 c 

 Tarazona (I.), Observation of the Solar Eclipse of November 



22, 1919, at Valencia, 491 

 Tarde (A. de). Work of the French in Morocco, 298 

 Tarn (A.). Mirage Effects, 662 

 Tarrnrit (A. G.), The Measurement of Physical Properties at 



High Temperatures, 523 

 Taylor (F.), .Australian Phlebotomic Diptera, New Culicid;t 



and Tabanid,T, and Synonymy, 555 

 Taylor (Griffith), The Possibilities of Settlement in Tropical 



.Australia, 64S 

 Taylor (Dr. Hugh S.), Catalysis in Chemical Industry, 04 

 Taylor (J. R.), apiointed Director of Humanistic Studies in 



the Huddersfield Technical College. 127 

 Te'ale (E. O.). The Diabase and .Associated Rocks of the 



Howqua River, near Mansfield, Victoria, loS 



Thaysen (Dr. A. C), Different .\spects of Bacteriology out- 

 side Medicine; 455 



Theal (Dr. G. McCall), Ethnography and Condition of 

 South Africa before a.d. 1505. Second edition, 315 



Thomas (Major E. R.), The Work of an Ammunition 

 Chsnist in the Field, j;^ 



Thomas (Capt. H. Hamshaw), Some Features in the Topo- 

 graphy and Geological Jlistorv of Palestine, 345 ; The 

 Desert Flora of Western Egypt, 520 



Thompson (Prof. D'.Arcy W.), international Relations in 

 Science, 154; The Birth ol Oceanography, 686 



Ihompson (H.), Modern Engineering Workshop Practice, 



352 



Thompson (Dr. McLean), Nature and Origin of the Pith 

 and Inner Endodermis in MeduUated Ferns, 521 



Thomson (Dr. G. 11.), awarded the Prize for a Paper 

 on the Availability of Pearson's Formulas for Psycho- 

 physics, 60S 



Thomson (Dr. J. .Allan), The Geology and Palaeontology of 

 the Palliser Bay District, 517 



Thomson (Prof. J. .Arthur), Heredity. Third edition, 92 ; 

 Secrets of Animal Life, 172 



Thomson (Sir J. J.), Presidential .Address to the Royal 

 .Society, 361 ; Recommended for Re-election as Presi- 

 dent of the Royal Society, 295 : The Influence of In- 

 vestigations on the Electrical Properties of Gases on 

 Our Conceptions of the Structure of Matter, 224 



Thorbarn (.A.), .A Naturalist's Sketch Book, 432 



Thornton (Dr.), Ignition of Gases by Hot Wires, 487 



Thornton (Prof.), The Thermal Conductivity and the 

 Velocity of .Sound in Insulatinsr Materials. 4.S- 



Thorp (Major G.), appointed Chief Instructor in Electricity 

 at ihe School of Military Engineering, Chatham, 186 



Thorpe (Sir Edward), Progress of Chemistry, 217 



Thrum (T. G.), The Formation of the Hawaian Islands, 

 etc., 508 



1 ilden (Sir William -A.), Progress in Science Teaching, 253 



Tilho (Col. J.), Discoveries in the Sahara, 610; The Raw 

 Materials and Railways of Tropical Africa North of 

 the Equator, 68 



Tillyard (Dr. R. J.), Australian Neuroptera. No. 8. Re- 

 vision of the Family Ithonidae, 147; Mesozoic Insects 

 of Queensland. No. 6, ur ; No. 7, 587 : The Panor- 

 poid Complex. Part iii.. The Wing-venation, 40S 



Tizard (Col.). Reduction of Engine Performance at a 

 Great Height to a Standard Pressure, Density, and 

 Temperature, 486 



Tolkowsky (M.), Conferment of the Degree of D.Sc. upon, 

 by the University of London, 616 



Tolmatcheff (Dr.), Conditions in Petrograd, 443 



Torporley (N.), The Career of, 297 



Torricelli, Opere di Evangelista, Edite da Gino Loria e 

 Giuseppe Vassura. Three vols., 557 



Townsend (Prof. J. S.), lonisation of Gases, 233 



Trail (Prof. J. VV. H.), [obituary article], 76 



Travers (Dr. M. W.), The Control of Scientific and In- 

 dustrial Research, 597 ; The Position of the Glass Trade 

 after the War, 455 



Trelease (Prof. W.). The Flora of Central .America and 

 the .Antilles an.f Former Land Connections, 476 



Trotter (A. P.), Lambert and Photometry, 358 



Trouo (R. S.), elected Pi ofessor of Forestry in Oxford 

 University, 1S6 



Trowbridge (S. B. P.), and others. Zoological Sculpture in 

 .Art and Architecture. 117 



Turner (Dr. .A. J.), Revision of Australian Lepidoptera. 

 Part vi., 20 ; 147 



Turner (Prof. H.), Long-Period Variables, 643 



Turner (H. G.), [obituary], 702 



Tutton (Dr. .A. F. H.), Crystallographic Properties of Mono- 

 clinic Double .Selenates of the Cobalt Group, etc., 447 



Tweedy (Sir John), The Surgical Tradition (The Thomas 

 Vicary Lecture), 418 



Twenhofei (W. H.), Pre-Cambrian and Carboniferous .Algal 

 Deposits, 640 



Twyman (F.), Variations of 'Refractive Index, 315 



Uljanin (Prof. W.), Reduction of the Measurement of the 

 Horizontal Comnonent of the Earth's Magnetic Field 

 to that of an Electric Current, 510 



I 



I 



