Nature^ ■ "1 

 April 15, 1Q20J 



Index 



XI 



Hoagland (D. R.), Experiments in tlie Cultivation of 

 Barley. 4.^6 



Hodgson (E. S.), Trilingual. Artillery Dictionary. 3 vols. 

 Vol. i., English — French — titalian, 332 



Hodsman (H. J.), and Prof. Cobb, Tests of the E.xpansions 

 of Refractory Materials, 379 



Hogben (L. T.), Nuclear Phenomena in the Oocytes of 

 Neuroterus, a Gall-fly, 346; Studies in Synapsis, I., 

 649 : 674 



Hogg (H. R.), Some Australian Opiliones, 713 



Holmes (T. V.), Warren's Pre-History in Essex, 112 



Holteijahl (Dr. O.), Forthcoming' Exploring Expedition to 

 Novaya Zemlya, 357; Suess's "Sal" and " Sima " 

 Magmas, 574 



Hooker (R. H.), elected President of the Royal Meteoro- 

 logical Society, 573 



Hopkins (Dr. Cyril G.), [obituary article], 442 



Horlon (F.), and .Ann C. Davies, -An Experimental Deter- 

 miirition of the Critical Electron V'elocities for the 

 Production of Radiation and lonisation on Collision 

 with .Argon Atoms, 406; Effects of Electron Collisions 

 with Platinum and with Hydrogen, 618; The lonisa- 

 tion by Electron Collisions in Argon and Helium, 454 ; 

 and ^liss D. Bailey, The Luminosity Produced in 

 Helium, 454 



Hosmer (Prof. G. L.), Text-book on Practical Astronomy. 

 .Second edition, 3 



Houstoun (Dr. R. .A.). Elements of Physics, 658 



Howard (.A. L.), The Timbers of India, 159 



Howard (Dr. L. O.), elected President of the American 

 .Association, 613 



Howchin (W.), The Geology of South .Australia. In two 

 Divisions, 91 



Howorth (Sir Henry 11.), Tlie Turks of Central Asia, 273 ' 



Hrdlifka (Dr. ,A.), The Population of Russia, 341 



Hughes (T, .S.), Bequest to the University of London, 344 



Hull (Rev. J. E.), " Gynandry " among Spider:^, 81 



Hull (L. ^L), Method of Rating Thermionic-valve Gene- 

 rators, ^lo / ■ . . 



Hulme (E. W.), Presentation to, on Vacating the Librarian- 

 ship of the Patent Office, 585 : . : 



Humbert (P.), The Calculations of G. H. Darwiii on the 



Stability of the Pyriform Figure, 650 , ■ ' 



Humphreys (Prof. W. j.). The Factors Controlling Climate, 



610 

 Humphry (R. H.), appointed Lecturer in Physics at the 

 .Sir John Cass Technical Institute, 186 '. 



Hutchins (D. E.), The Economic Value of the Forests of 



New Zealand, 159 

 Hutton (T. H.). Leopard-men in the Naga Hills, 427 



Huxley (J.), The Courtship of the Dabchick. 359 ; Meta- 

 morphoses of .Axolotl caused by Thyroid-feeding, 435 



Ilford, Ltd., .\ Hardening Solution for Gelatine Negatives, 



1 1 

 Inge (Dean), appointed Romanes Lecturer for 1920, 266 

 Inglis (Prof.), Portable 'Militarv Bridges, j86 

 Innes (R. T. .A.), The Blink Microscope, 66 

 Izat (.\.), [obituary], 540 



Jackson (Rt. Hon. F. Huth), The National .Alliance of 



Employers and Employed, 485 

 Jackson (.Sir John), [obituary], 798 

 Jackson (\'. IL), and .A. T. Mukerjeo, Improvements in 



.Measurements with Quadrant Electrometers. Part ii., 



459 ; The Utility of Desiccants in Electrostatic Measure^ 



mcnts, j^9 

 James (.A. V. E.), The Physiography and Geography of 



the Bulla-Sydenham .Area, 610 

 James (R. VV.), The .Antarctic: Shackleton's Expedition of 



1914-17, .SS4 

 Jardine lV)r. !•". V.). appointed Lecturer on Applied .Anatomy 



Lji Edinljurch University. 42; 

 Jayaram (B.), The Manganese Ores of the Shimoga and 



.Adiacent Districts, 137 

 Jeans (J. IL), awarded a Royal Medal of the Royal Society, 



29.=;; S63 ; Relativity, 400; 631 

 Jcffrevs (Dr. H.), Relativity, 401': The National Union of 



Scientific Workers and Research, 23 



Jekhowsky (1!.), Orbit of the Metcalf Comet 1919&, 68 



Jespersen (P.), The North Atlantic Halibut Fishery, 158 



Joad (C. E. M.), Essays in Corhmon-sense' Philosophy, 352 



Johansen (.A. C), The Biometrics of the Spring-spawning 

 Herrings, 158 



Johnson (Prof. D. W.), Shore Processes and Shore-line De- 

 velopment, 70 



Johnston (Sir Harry H.), .A Comparative Study of the 

 Bantu and Semi-Bantu Languages, 129 ; The Flight 

 from Cairo to the Cape : Aviation and Exploration, 

 632; The Prehistory of South Africa, 315 



Johnston (R. M.), Proposed Memorial to the late, I17 



Johnston (\V. J.), A Linear Associative Algebra Suitable 

 for F:iectro-magnetic Relations and the Theorv of 

 Relativity, 365 



Johnstone (Prof. ].). The Extension of Territorial Waters 

 in Relation to Deep-sea Fishing, 135 



Jolibois (P.), .A New Method of Physico-chemical .Analysis 

 of Precipitates, 523 



Joly (Prof. J.). .\ Photoelectric Theory of Colour Vision, 

 74: Relativity and Radio-activity, 468;', Scfentific 

 Signalling and Safety at Sea, 41; and J. H. J. Poole, 

 Reversed Pleochroic Haloes, 94 



Jones (Prof. Brvner), Results of Breaking Up Grassland in 

 19 18, 98 



Jones (B. M.), elected Professor of Chemistry in the Uni- 

 versify College of Wales, Aberystwyth, 186 ; elected to 

 the Francis Mond Professorship of .Aeronautical Engi- 

 neering in Cambridge University, 107' 



Jones (Chapman), Progress of Photography, 251 



Jones (Dr. D. W. Carmalt), appointed Professor of 

 .Systematic .Medicine in Otago University, 490' 



Jordan (Dr. .A. C). X-r.'iys in Medical Science, 237 



Jourdain (P. E. B.), [obituary], 117 



JutSon (J. T.) Dust-whirls in Sub-arid Western Australia, 

 619 ; Rock Expansion by Temperature Variation in Sub- 

 arid Vv'estern .Australia;: 108; The "Clawing " .Action Of 

 Rain in> .Sub-aridW'estern Australia, 108 



Jutson and Simpson, The Geology of .Albany. 570 



Kaye (C;. R.), Ancient Hindu Spherical .Astronomy, 119 



Kave CDr'. G: W.'C), Industrial .and Medical Radiology, 

 "696 



Keeble (Dr. F. W.), elected Sherardian Professor of Botany 

 in Oxford L'niversitv, 426 



Keeling (Lt.-Col. B. Y . E.), [obituary article], 317 



Keen (B. A.). Forec'asting Frosts, 450 



Keilin (Dr. D.), The Larval .Structure and Life-history of 

 MeJinda cognata, Meig., 399 



Keith (Prof. .A.), Life and Work of Sir Francis Gallon, 670; 

 Menders of the Maimed : The Anatomical and Physio- 

 logical Principles underlying the Treatment of Injuries 

 to Muscies, Nerves, Bones, and Joints, 493 ; Nationality 

 and Race from an Anthropologist's Point of View. 476; 

 Presidential Address to the .Anthropology Section of the 

 British Association, 36; 301 ; Race and Nationality from 

 an .Anthropological Point of View, 344 ; Race and Per- 

 .sonality, 311 



Kcltie (Sir John Scott), Progress of Geography, 249 ; and 

 Dr. M. Epstein, The Statesman's Year Book, 1919, 152 



Kennelly (Prof. A. E.), and E. Velander, .A New Form of 

 Rectangular Component .Alternating-ciirrent Potentio- 

 meter, 42 



Kenover (L. A.), The Dimorphic Femalr 1' lower of Acalypha 

 indica, 297 



Kerr (Prof. J. Graham), Text-book of Embryology. Vol. ii., 

 Vertebrata with the Exception of Marnmalia, 309 



Kerr (W.), appointed Research .Assistant in Mechanical 

 Engineering at the Gla.sgow Technical College. 19 



Kidston (Dr. R.), and Prof. W. H. Lang. Old Red Sand- 

 stone Plants showing Structure from the Rhynie Chert 

 Bed, .Aberdeenshire. Part ni.. 458; The Petrified 

 Plants from the Silicified Peat-bed in the Old- Red 

 Sandstone of Rhynie, 641 



King (Prof. L. W.), H. R. Hall, 27 



King (W. B. R.), appointed .Assistant to the Professor of 

 Geology in Cambridge University, 364 ; Geological Work 

 on the Western Front, 476 



Kingzett (C. T.). Suggestion for the Analysis of Air obtained 

 at High .Altitudes, 540 



