XXXVl 



Index 



CNaturi, 

 Aprtl 14, 1921 



Hornero, El, 151 



Horsley, Victor, Memorial Fund, The, 638 



Housing Schemes, Smoke Abatement and, 517 



Huddersfield Technical College, Report for 1920, 424 



Human ; Retinal Adaptation, S. Hecht, iby ; Sex Ratio, 

 The, C. C. Little, 587; Skulls found at South Malekula, 

 New Hebrides, Prof. J. Cameron, 28; Tails, Prof. A. 

 Keith, 84s 



Huxley : Thomas Henry, A Character Sketch, Dr. L. 

 Huxley, b ; Memorial Lecture for 1920 of the Royal 

 Anthropological Institute, Dr. A. C. Haddon, 483 ; 

 Memorial Medal of the Royal Anthropological Institute 

 presented to Dr. A. C. Haddon, 484 



Huygens : Christiaan, OJuvres Completes de, Tome 

 Treizi^me, Dioptrique, I'asc. i., ii., 140; The Diop- 

 trics of, 140 



Hyderabad, Work of the .Archaeological Department of, 

 121 



.Hydrobenzamide, The Catalytic Hydrogenation of, G. 

 Mignonac.i 586 



HydVobenzoin Transformation, The, Tiffeneau and Or6- 

 khoff, 99 



Hydrocarbons, The Dispersion of the Refraction of, E. 

 Darmois, 490 



Hydro-castorite of Elba, .So-called, P. Comucci, 35 



Hydrogen: Active, Y. Venkataramaiah, 46; Chloride, 

 Absorption Spectrum of, K. W. Loomis, 179'; Peroxide, 

 The Action of, on Flour, M. Marion, 394; The Recti- 

 linear Diameter of, E. Mathias, C. .\. Crommelin, and 

 H. K. Onnes, 850 ; to Suberone, The Catalytic Ad- 

 dition of, M. Godchot, 682 



.Hymenoptera, Two New, of the Super-family Proctotrypids 

 from Australia, .\. P. Dodd, 427 



Hypergamy, The Origin of, Dr. W. H. R. Rivers, 646 



Hyperplasia of Nerve-centres, The, resulting from Exces- 

 sive Peripheral Loading, S. R. Detwiler, 136 



.Hypnotics, A New Class of, the Dialkylhomophthalimides, 

 A. Lumi^re and F. Perrin, 299 



Hypnum commutatum. Modification of the Form and 

 Structure of, kept under Water, Ad. D. de Virville, 

 779 



Iceland, The Botany of. Edited by Dr. L. K. Rosenvinge 

 and Dr. E. Warming. Vol. ii., part i., E. 0strup and 

 O. Galloe, 530 



Idealism, Modern, Lectures on, Prof. J. Royce, 102 



Ila-speaking Peoples of Northern Rhodesia, The, Rev. 

 E. W. Smith and Capt. A. M. Dale, 2 vols., 410 



Ilex, Observations on the. Dr. J. Massart, 417 



Illuminating Engineering Society, J. H. Parsons elected 

 President of the, 545 



Immunity in Health : The Function of the Tonsils and 

 other Subepithelial Lymphatic Glands in the Bodily 

 Economy, Prof. K. H. Digby. 177 



Imperial: Capitals, Dr. Vaughan Cornish, 300; College 

 War Memorial Scheme, The, 99 ; War Memorial and 

 Athletic Ground Scheme, The, 650 ; Sir Alfred Keogh 

 and others, 552 ; as a University of Science and Tech- 

 nology, 262 ; Mineral Resources, Prof. H. Louis, 528 



Inbreeding and Outbreeding : Their Genetic and Socio- 

 logical Significance, Dr. E. M. East and Dr. D. F. 

 Jones, 335 



Income-tax Assessment of Scientific Workers, The, 447 



India: fixperimental Science in, 572; Forest Department 

 in, The Work of the, 729 : Higher Education in. De- 

 velopment of, 39 ; " Selections from Educational Re- 

 cords,'' 712 : Survey of. General Report of the, 1018-19. 

 t8q ; The Forest Resources of, 720 ; The Neglect of 

 Science and Technology in, K. Srinivasa Iyengar, 777 : 

 University Education in, Sir Harcourt Butler. 26<; ; 

 Zoological Survey of. Report on the, 1917-20, Dr. N. 

 Annandale, 738 

 Indian : ftoat Desiens, The Origins and Ethnological Signi- 

 ficance of, T. Hornell, i;?^ : Gondwana Plants : .\ Re- 

 vision, Prof. A. C. Seward and Prof. B. Sahni._77o; 

 Institute of Science, Bangalore, The Directorship of 

 the, 26, 288 : School of Mining and Geology. The, 454 : 

 Science Congress, Forthcoming, 87 ; Proceedings of the 



Sixth Annual, 450 ; Tribes, Two, in the Gran Chaco, 

 An Ethnogeographical Analysis of the Material Culture 

 of, E. Nordenskiold, 370 : The Changes in the Material 

 Culture of, under the Influence of New Surroundings, 

 E. Nordenskiold, 370 



Indicator Diagram of a Gun, The, Sir J. B. Henderson and 



Prof. Hass6, 423 

 Indicators and the Law of Mass Action, Brig.-Gen. Hartley, 

 678 



Induction : Coil Design, M. A. Codd, 626 ; Coil of To-day, 

 The, 626 



Industrial : Administration : A Series of Lectures, A. E. 

 Berriman, and others, 74 ; Journal of. Part i., 704 ; 

 Aspects of Life in its Relation to Schools, Bray, 579 ; 

 Fatigue Research Board, Eighth Report of the, S. Wyatt 

 and H. C. Weston, 122 ; Threatened Withdrawal of 

 Grants to the, by the Treasury, 839 ; Psychology, 

 Present-day, Sir Lynden Macassey, 815 ; Research Asso- 

 ciations ; i., British Scientific Instrument Research 

 Association, J. W. Williamson, 346; ii., British Non- 

 Ferrous Metals Research Association, E. A. Smith, 

 381 ; iii.. The British Cotton Industry Research Asso- 

 ciation, Dr. A. W. Crossley, 411; iv.. The British Re- 

 search Association for the Woollen and Worsted In- 

 dustries, A. Frobisher, 443 ; v. , The British Portland 

 Cement Research Association, S. G. S. Panisset, 475; 

 vi., The Glass Research Association, E. Quine, 506; 

 vii.. The Research .Association of British Motor and 

 Allied Manufacturers, H. S. Rowell, 538; viii.. The 

 British Photographic Research Association, Dr. T. 

 Slater Price, 635 ; ix., British Boot, Shoe, and Allied 

 Trades Research Association, J. Blakeman, 763 



Industry, Efficiency in, 844 



Inflammable Mixtures of Coal-gas and Air after Explosion, 

 The Internal Energy of, Prof. W. T. David, 553 



Insect Pests, Control of, by Parasites, 289 



Insects: Keys to the Orders of, F. Balfour-Browne, 78; 

 The Iridescent Colours of, H. Onslow, 149, :8i, 215 



Insoluble Substances, The Shock Produced by the Intro- 

 duction of, into the Circulation, A. Lumiire and H. 

 Couturier, 586 



Institut International d'Anthropologie, Constitution of the, 

 3'8 



Institute of Human Paljeontology, Pans, The, 698 



Institution : of Electrical Engineers, Presidential Address to 

 the, LI. B. Atkinson, 481 ; of Mining and Metallurgy, 

 Award of the Gold Medal of the, to Sir T. Kirk Rose ; 

 the Gold Medal and Premium of the Consolidated Gold 

 Fields of South Africa, Ltd., awarded to H. L. Sulman, 



383 

 Intelligence, Testing, Prof. P. Nunn, 644 

 Intensity : and Phase in the Binaural Location of Pure 



Tones, The Functions of, G. W. Stewart, 587 ; in 

 . Solar and Stellar Spectra, Distribution of, B. Lindblad, 



59 



Intensive Cultivation, Prof. F. Keeble (Presidential Address 

 to the Agriculture Section of the British .Association), 

 293 



Interference: Fringes, The Location of, J. Guild, 458; 

 Method for the Determination of Quartz Standards of 

 Length, The, A. Pirard, 586 



Internal-combustion : Engine, A High-speed, for Research, 

 H. R. Ricardo, 422 : Engines, Specific Heat and Disso- 

 ciation in, H. T. Tizard and D. R. Pye, 423 ; Their 

 Principles and .Application to .Automobile, Aircraft, and 

 Marine Purposes, Lieut.-Commr. W. L. Lind, 210; 

 Motors, General Fatigue in. The Determination of a 

 Criterion of, M. Dumanois, 746 • 



International : Catalogue of Scientific Literature, Inter- 

 national Conference on the, 195 ; Commission for 

 Weather Telegraphy, Meeting of the, 484; Committee 

 of Weights and Measures, Proposed Change of Func- 

 tions of the, 771 : Congress of Mathematicians, The, 

 196; Intellectual Relations, The Organisation of. Dr. 

 V. Naser, 581 ; Scholarship, Sir Frederic E. Kenyon, 

 455 ; Trade", The Metric System and, H. Allcock, 169 



Intestinal Protozoa of Man in Health and Disease, Drs. 

 R. W. Hegner and G. C. Payne, 769 



