xl 



Index 



r 



Nature, 

 \_Septemhcr 29, 1921 



IHuminati'ng Engineering Society, Report of the, 470 



Illumination, International Commission on, the First 

 Technical Session of the, 722 



Imbecility, Mongolian, Dr. F. G. Crookshank, 218 



Imperial : College of Science a'nd Technology, Anonymous 

 Gift for Scholarships, 123 ; New Chemical Laboratory 

 opyened by A. J. Balfour, 561 ; Large-scale Chemistry 

 at the, 624; Forestry Education, 315 



Impressions and Comments. Second series, 1914-20, 

 Havelock Ellis, 743 



Indexing, Co-operative, of Periodical Literature, 449 ; Dr. 

 F. A, Bather; Prof. W. M. Flinders Petrie ; Dr. J. W. 

 Evans, 550; A. P. Newton, S. Gaselee, 551 



" Index-numbers " and Wages-regulation. 513 



India : and Burma, Pendulum Operations in ; Capt. Couch- 

 man, 187 ; Hydro-electric Survey of. Vol. ii. : Second 

 Report on the Water-power Resources of India, ascer- 

 tained during the Season 1919-20 by F. E. Bull and 

 J. W. Meares, 263 ; Institution of Engineers, Calcutta, 

 Inauguration of the, 243 ; Meteorological Department 

 of the Government of. Report of the, for 1919-20, 279 ; 

 The Prehistoric Arts and Crafts of, P. Mitra, 630 



Indian : Agriculture, Dr. W. E. Brenchley, and others, 58 ; 

 Botanical Society, Origin and Aims of the, 243 ; Educa- 

 tional Service, Appointments to the, 411 ; Industries and 

 Labour, Journal of. No. i., 179; Infants, Weights at 

 Birth of. Dr. D. F. Curjel, 757 ; Micro-lepidoptera, Life- 

 histories of, T. B. Fletcher, 631 ; Oils, Some, Hydro- 

 lysis of, by Vegetable Lipase, N. A. Yajnik and H. C. 

 Mahajan, 672 ; Tribes of Ecuador, Sociology of the. Dr. 

 R. Karsten, 150 ; Village Site and Cemetery near 

 Madisonville, Ohio, Excavation of an, 278 



Indigo Textile Hydrosulphite Vat-dyeing, Some Investiga- 

 tions on, N. A. Yajnik and D. R. Sarma, 671 



Indonesian Canoes, The Outriggers of, Dr. A. C. Haddon, 

 244 



Inductance, Small, Measurement of, F. B. Pidduck, 623 



Inductometers, Errors due to Capacity and Eddy-current 

 Effects in, S. Butterworth, 632 



Industrial : Crisis in this Country, The, Sir Robert Had- 

 field, 342 ; Fatigue, Dr. C. S. Myers, 23 ; Hygiene, 

 impending appointment of an International Committee 

 on, 562 ; Research, F. B.. Jewett, 121 ; Worker, The 

 Health of the. Prof. E. L. Collis and Dr. M. Green- 

 wood. Containing a Chapter on Reclamation of the 

 Disabled, by Dr. A. J. Collis, 354 



Industries : Safeguarding of, 178 ; Bill, read a second time, 

 467 



Infection by the Air, Activity of, A. Trillat and R. Kaneko, 



734 

 Ingersoll Cement Gun, The, O. G. C. Drury, 596 

 Insect : Adventures, J. H. Fabre, loi ; Control in Flour 



Mills, E. A. Back, 309 ; Life, C. A. Ealand, 806 ; 



Oases, C. G. Lamb, 189 

 Insects : in Relation to the Reproduction of Coniferous 



Trees, E. R. Speyer, 413 ; The Psychic Life of, E. 'L. 



Bouvier, 501 

 Instinct: and the Unconscious: A Contribution to a Bio- 

 logical Theory of the Psycho-neuroses, Dr. W. H. R. 



Rivers, 515 ; in Man : A Contribution to the Psychology 



of Education, Dr. J. Drever. Second edition, 455 

 Institute of Metals, Programme of the Autumn Meeting of 



the, 756 

 Institute of Physics, The Inauguration of the. Speeches by 



Sir J. 7. Thomson, and A. J. Balfour, 312 

 Institution : of Civil Engineers, Election of Officers and 



Council of the, W. B. Worthington President, 370 ; of 



Mining and Metallurgy, Annual Report of the, 278 

 Intelligence, The Annual Incidence of, and its Measurement 



by the American Army Tests, M. M'C. Fairgrieve, 601 

 Interference : Bands, A Method of Projecting, Dr. Har- 



tridge, 446 ; Methods, Recent Applications of,' Prof. 



A. A. Michelson, 220 ; The Application of, to Astronomy, 



H. Spencer Jones, 685 

 Interferometer for Testing Camera Lenses, An, F. Twyman, 



635 

 Intermolecular Condensations produced by Oxynitric Groups, 



G. Cusmano, 127 

 International : Hydrographic Board, Establishment of an, 

 562 ; Organisation and Public Health, Dr. G. S. Bu- 



chanan, 150 ; Research Council, The, Sir Arthur 

 Schuster, 72 ; Prof. G. H. Hardy, 107 ; Union against 

 Tuberculosis, The Conference of the, 751 



Internationalism, 577 



Inulin, the Products of Fermentation Hydrolysis of, The 

 Application of the Biochemical Method of Research on 

 Glucose to the Study of, E. Bourquelot and M. Bridel, 



350 

 Inventions and Grants in Aid, 129 

 lodamidines, The, J. Bougault and P. Robin, 94 

 Iodine : Electrode, The Potential of the, and the Activity 

 of the Iodide Ion at 25° C, A. McKeown, 702 ; The 

 Action of, on Different Metals in the Cold, C. Matig- 

 non, 127 ; -tellurium, The System, A. Damiens, 94 

 lonisation : Potential, The Atomic Radius and the. Prof. 

 Megh Nad Saha, 682 ; and the Size of the Atom, Prof. 

 A. S. Eve, 552 ; Spectrometer, Application of the, to 

 the Determination of the Structure of Minute Crystals, 

 Sir William Bragg, 253; The Influence of Solvent 

 upon, and the accompanying Heat Effect, S. M. Neale, 

 702 

 Ireland, the Geological Map of, 823 



Iron : -age Culture in the Balkan Peninsula, S. Casson, 500 ; 

 and Associated Industries of Lorraine, etc.. The, A. H. 

 Brooks and M. F. La Croix, 631 ; and Steel Industry, 

 Fatigue and Efficiency in the, Dr. H. M. Vernon, 156; 

 Institute, Programme of the Paris Meeting of the, 821 ; 

 The World's Hunger for. Sir Robert Hadfield, 596; 

 Currency-bars, O. G. S. Crawford, 587 ; in Antiquity. 

 Dr. J. N. Friend, 372 ; in Plants, The Distribution of, 

 L. Maquenne and R. Cerighelli, 799 ; Ores : Bedded Ores 

 of the Lias, Oolites, and 'Later Formations in England, 

 G. W. Lamplugh, C. B. Wedd, and J. Pringle, 261 ; 

 Pre-Carboniferous and Carboniferous Bedded Ores of 

 England and Wales, Sir A. Strahan, Dr. W. Gibson, 

 T. C. Cantrill, Dr. R. L. Sherlock, and H. Dewey, 

 261 ; The Resistivity of. The Influence of Welding on, 



E. L. Dupuy, 670 



Ironstone Beds of the Mornington Peninsula, Age of the, 



F. Chapman, 607 



Isatin 5-Sulphonic Acids, J. Martinet and O. Dornier, 31 

 Isle of Wight : Disease in Hive Bees, Dr. J. Rennie, and 



others ; Dr. A. D. Imms, 283 ; Short Account of the 



Geology of the, H. J. O. Wright, 827 

 Isochronism, The Deviations from the Law of, Produced by 



the Suspension Strip of the Pendulum, P. Le Rolland, 



190 

 Isonzo Valley, Central, Geology of the. Dr. A. Winkler, 



827 

 l5o-thiocyanacetic Acid, Alkvl Amides of, T. B. Johnson, 



A. J. Hill, and E. B. Kelsey, 94 

 Isotopes and Atomic Weights, Dr. F. W. Aston, 334 ; The 



Atomic Volume of. Prof F. Soddy, 41 ;i Their Number 



and Classification, Prof. W. D. Harkins, 202 

 Italian : Engineering, Lectures on, by Prof. Luiggi, 60 ; 



Meteorites, Prof. W. M. Flinders Petrie, 301 

 Italy, Agriculture in, A New Society for Scientific Work 



in, 149 



Japan, A Diplomat in, Rt. Hon. Sir Ernest Satow, 263 

 Japanese Artificially Induced Pearl, The, Dr. H. Lyster 



Jameson, 396 ; Dr. W. Wingrave, 620 ; Dr. H. Lyster 



Jameson, 621 

 Jersey, The Geology of, G. H. Ply men, 827 

 Jerusalem, The Proposed University of, C. Crossland, 733; 



Literature for, Prof. S. Alexander I. M. Sieff, and 



D. B. Stanhill, 333 

 Jivaro Indians, The Diminutive Shrunken Heads made by"" 



the, C. W. Mead, 823 

 Jones, Thomas Wharton, Sir Rickman Godlee, 829 

 Jordan's Nets for Making Models of Simple Crystal-forms, 



Julin's Chloride, The Formation of, in the Preparation of 

 Electrolytic Chlorine, F. Bourion and Ch. Courtois, 542 



Jungle Book, A, 615 



Jupiter's : Four Great Satellites, Prof. W. de Sitter, Dr. A. J. 

 Leckie, 663 ; Satellites, Theory of. Prof. Sampson, 405 



Jurassic Ammonites from Vinales, Western Cuba, Dr. Mar- 

 jorie O'Connell, 631 



