XXX 



Index 



r Nature^ - 

 LA^ri'i 15, 1920 



Western Progress from 1815 to the Great War, F. S. 

 Marvin, 130 , 



Hornea hignieri, One of the simplest Land-plants, Prof. 

 \V. H. Lang, 367 



Horse : Bot-flies, Drs. S. Hadwen and A. E. Cameron, 64 ; 

 Cemetery in the Nile Valley, discovery of a, Prof. 

 G. A. Reisner, 702 ; -chestnuts, Experiments with, A. 

 Gill, 575 



House-fly : The Hibernation of the. Sir Herbert Maxwell, 

 435 ; in Winter, 96 



Huddersfield Technical College, J. R. Taylor appointed 

 Director of Humanistic Studies in the, 127 



Hull : Municipal Museum, The Drake and Bower Geo- 

 logical Collections acquired by the, g ; Whaling Trade, 

 The, T. Sheppard, 6og 



Human : Metabolism, 644 ; Personality and its survival of 

 Bodily Death, F. W. H. Myers, Edited and Abridged 

 by S! B. and L. H. M, 595 ; New Views of, Dr. 

 Olive Wheeler 513; Vitality and Efficiency under pro- 

 longed Restricted Diet, F. G. Benedict, \V. R. Miles 

 P. Roth, and H. M. Smith, 644 



Humus, The Chemical Properties of, and their Utilisation 

 for the protection of Combatants against Asphyxiating 

 Gases, G. du Bellay and M. Houdard, 683 



Hunterian Society, Celebration of the Centenary of the, 

 presentation of the Society's silver medal to J. Adams, 



Huronian Iron-bearing strata of the Mesabie range m 



Minnesota, Structures in the, due to Alga;, F. F. 



Grant and T. M. Broderick, 360 

 Hydramides, The Oxidation of the, J. Bougault and P. 



Robin, 407 

 Hydrocyanic : Acid, Detection of, in a Case of Poisoning, 



L. Chelle, 367 : Transformation of, into Thiocyanic 



.Acid in the Course of Cadaveric Putrefactions, M. 



Chelle, 327 ; and Thiocyanic Acids in a Complex 



Medium, The Detection and Estimation of Traces of, 



L. Chelle, 407 

 Hydro-electric : Development Scheme, The. Chippawa- 



Queenston, Dr. B. Cunningham, 483 ; Development 



Works, Dr. B. Cunningham, i6i ; Survey of India, 



The, Dr. B. Cunningham, 363 

 Hydrogen :-ion Concentration and Photosynthesis, T. T. 



Saunders, 366 ; The Secondary Spectrum of. T. R. 



Merton, 406 

 Hvdrographic Conference, The Internationa!, 440 



Immune Sera, Dr. C. F. Bolduan and J. Koopman. Fifth 

 edition, 434 



Imperial: .Air Routes, Major-Gen. Sir F. H. Sykes, f>34 : 

 Botanical Congress in London, The Protxised. Aban- 

 doned. 670; College of Science and Technolofv. Request 

 for Power to Award Degrees, 426 ; Statistics, The 

 Organisation of, G. H. Knibbs, 1^51 



Incandescent Electric Lamps', The Luminosity of. Dr. L. 

 Fabaro, 542 



India : Cults of the Mother Goddesses in. Dr. W, Crooke, 

 608 ; Government of, .Apoointment by the. of a Com- 

 mittee on the Sugar Industry, 444 ; Hvdro-electric 

 Survev of. Preliminary Report on the Water-i>ovver 

 Resources of. Compiled by J. W. Meares. 363 ; Rei'iow 

 of the Mineral Production of, during iqi8, 542 ; Seri- 

 culture in. 471 : Survey of. General Report of the, 

 for 1917-18, 509: Survev of. Maps and the Modern 

 Development of Indian Cartography, Lt.-Col. W. M. 

 Coldstream, 574; The Organisation of .Scientific Work 

 in, 653 



Indian: Botanv, Journal of. No. i, 297; Geologv. 1:02: 

 Munitions Board, Industrial Handbook. 1919. Revised 

 edition, 413 ; Museum, Calcutta, Identification of Two 

 Statues in the, 702 ; Sugar-canes and Their Origin, 

 Some, Dr. C. A. Barber, 14; Studies in. Dr. C. . A. 

 Barber, :;78 



Industrial : Efficiency and Fatigue. The Influence of the 

 Six-hour Day on. Dr. H. M. Vernon, 519 ; Psychology, 

 Lectures on, B. Muscio. .Second edition. Revised, 687 ; 

 Research, A. P. M. Fleming, 470; Associations, 551; 

 Pamphlet on, 9 ; Resources of India, 413 



Industrialist, A Great, 592 



Industry, Elimination of Wasteful Effort in. Prof. T. H. 

 Pear, 387 



Inference, The Nature of, G. Cater, 407 



Influenza : A Discussion Opened by Sir Arthur Newsholme, 

 275; Epidemic of 1918-19, The, 509 ; Epidemics, The 

 Periodicity of. Dr. J. Brownlee, 296; Mortality Statistics 

 in .America, Prof. R. Pearl, 509 ; Protective Inoculation 

 Against, in the Army, Major-Gen. Sir W. L^ishman, 

 703 ; Pneumonic, The Venous Oxvgen Content of. the 

 Alkaline Reserve of the Blood in. Dr. H. S. H. Ward- 

 law, 407 ; Returns, 638 ; Threatened Prevalence of. 



Inks, Commercial, Use of, in Plant Histologv, P. Bugnon, 



459 



Insect : Pests and Plant Diseases in the Vegetable and 

 Fruit Garden, F. Martin Duncan, 467; Scales, A 

 Periodic Structure in Many, and the Cause of Their 

 Iridescent Colours, H. Onslow, 649 



Insulating Materials Relation between the Thermal Con- 

 ductivity and the Velocity of Sound iii. Prof. Thorn- 

 ton, 487 



Intelligence, Tests of. Prof. J. Adams, 513 



Interferometry, .Applications of. Prof. C. Barus, 677 



Internal-combustion Engines, Principles of Electric Spark 

 Ignition in, J. D. Morgan, 372 



Internal Strains Existing in a Circular Cylinder, Method 

 of Determination of the, M. Mosnager, 618 



International : Co-ordination of Scientific Effort and Action, 

 Resolutions Respecting, 506 ; Hvdrographic Conference. 

 The, 440 ; Orjjanisation in -Science under the Peace 

 Treaty, 506; .Standardisation, 12 



Inventors, Difficulties of, 543 



Ionic Valve, Guide to the Study of the. Showing its Devel- 

 opment and .Application to Wireless Telcgraphv and 

 Telephony, W. D. Owen, 332 



lonisatipn : by Electron Collisions in .Argon and Helium, 

 Prof. Horton ,ind Miss .A. G.Davie.s. 454; in .Solution, 

 The Present Position of the Theory of. Dr. Senter, 

 and others, 707 



Ions: and lonisation, 707 : Effects of, on Ciliarv Movement 

 fGills of Mytilus edulis), J. Grav, 366; on,S|»rmatozoa, 

 J. Grav, 366 



Ireland: The Outpost, Prof. G. A. .1. Cole, 411 



Iridomermyx humilis in Madeira, Dr. M. C. Grabham. 



Irish : Decorated and Socketed Bronze .Axe, An, Sir W. 



Ridgeway, 441; : Geographical Association, Prof. G. A. ], 



Cole elected President of the, 51^4 

 Irrigation in Egypt: 580; and the Sudan, Dr.' B. Cunning- 

 ham, 67 

 Iron : and Steel Institute, Dr. J. E. Stead nominated as 



President of the, 340 ; Forthcoming .Annual Meeting 



of the, 474 : Deposition. Electrolytic, .An .Aspect of, 



Lt. W. .A. Macfadyen, 523 ; Electrolysing Solutions of. 



The Potential Necessary for, W. A. Noyes, jun., 407 ; 



Ores, British, Prof. H.' Louis, 420 ; B. Smith; T. C. 



Cantrill, Dr. R. L. Sherlock, and H. Dewey : Prof. 



T. F. Sibly, 429: Solutions, Polarisation in.-W. .A. 



Noyes, run., 683 

 Islands as Centres of Preservation of Human Diversities, 



etc.. Sir C. P. Lucas. 514 

 Isomerism, .An Electronic Theo''v of. W. E. Girner. 661 

 Lsopodan Genus, A New (fam. Oniscidse), from Lake Coran- 



gamite, Victoria. Prof. C. Chilton, cs^ 

 Isostasv : The Nature and Bearings of, and The -Status of 



the Theory of. Prof. J. Barrell, 645 

 Isostatic Compensation in the F.arth's Crust, 645 

 Isotooes : The Sepnrat'on of. Dr. A. Fleck, 565 ; The 



S|)ectra of. Dr. T. R. Merton, 406 

 Italian Papers on Relativity, Dr. L. Silberstein, 552 

 Italv. .Aeronautics in. Prof. G. H. Brvan, f^^6 

 Ithaca Agricultural Experimental Station, The, Dr. E. J. 



Russell, 482 



Jacobi, Marv Putnam, Fellowship of the Women's .Medical 



Association of . New York. The, 616 

 January Weather, 638 



