Nature. , 

 April 14, 1931. 



Index 



xxxvii 



Intravenous Injections, Use of Silicate of Soda in, L. 



Scheffler, A. Sartory, and P. Pellissier, 100 

 Iodic Acid, The Micro<hemical Reactions of, A. Bolland, 



490 

 lonisation and Excitation of Radiation by Electron Impact 



in Helium, Dr. F. H. Goucher, 457 

 Ions : Elective Absorption of, in Equilibrated Solutions, E. 



Pantanclli, 3q5 ; Large, The Existence of Homogeneous 



Groups of, O. Blackwood, 588 

 Ireland, Reports on the Injurious Insects and Other Animals 



for 1916-18, Prof. G. H. Carpenter, 576 

 Irish : Maps, Old, T. Sheppard, 243 ; Sea, Tides of the, 



A. Defant, 775 

 Iron : and Steel Institute, Forthcoming Annual Meeting of 



the, 639; Industry of South Wales, The, Dr. A. E. 



Trueman, 389 

 Isle nf Wight Disease in Bees : The Causation of. Physio- 

 logical Method as a Key to, Dr. J. M. McQueen. 376; 



Dr. J. Rennie, Miss Elsie Harvey, and B. White, 



458 

 Isomerism in the Series of the Aromatic a-Keto-acids, H. 



Gault and R. Weick. 99 

 Isothermal Concentration of a Solution Prepared Starting 



with Two Salts with Different Ions, The, E. Rencade, 



818 . . B . 



Isotopes : Dr. Aston, 357, 358 ; of Chlorine, The Separation 

 of the, D. L. Chapman, : of Mercury, The Separa- 

 tion of the, Prof. J. N. Bronsted and Dr. G. Hevesv, 

 .'44 

 Italian .Astronomical Society, Memoirs of the, 223 

 halite, A New Leucitic Rock, H. S. Washington, 491 

 Iteration, Complete, of x'-s, S. Pinrherle, too 



Japan, The Educational System of, 166 



Johnson CaAon, Ruins in, E. H. Morris, 479 



Joule, The Work and Discoveries of. Sir Dugald Clerk, 



7" 

 Jupiter, Variation in the Light of, P. Guthnick, 322 

 Jupiter's Satellites, R. T. A. Innes, 387 



Kalahari : The, and the Possibilities of its Irrigation, Prof. 



E. H. L. Schwarz, 390; or Thirstland Redemption, 



Prof. E. H. L. Schwarz, 2 

 Kaioka, The, a Madagascar Tree with Edible Seedt, H. 



Jumelle, 459 

 Keltic Remains, Late, from a Mendip Cave, L. S. Palmer, 



S49 

 Kelvin Gold Medal for Engineering, Award of the, to Dr. 



W. C. Unwin, 737 

 Kent's Cavern, The Needles of, with Reference to Needle 



Origin, H. J. Lowe, 56 

 K^pWrien, Tables du Mouvement, Dr. M. F. Boquct, 546 

 Key Industries. Promise of the Introduction of a Bill 



dealing with, 512 

 Kilaue.-i. Thurston's Lava-tube near, S. Power, 27 

 Kinem.-i-film Production, The Vsf and Abuse of Light in 



Studios for, 702 

 Kinematograph : Projector of n New Tvpe, A. Mrs. 



Kingsley-Higginson, 841 ; The, as an Educational Aid. 



S'9 

 Kinetic Theory. 465 

 King's College. London. Proposed Memorial to the late 



Dr. R. M. Burrows, R47 

 Kirkcudbrightshire and Wigtownshire, W. I>earmouth, 561 

 Kummer't Memoir of i8j7 roncerning Ferm.Ti't Last 



Theorem, II. P. Vandiver, 588 



Labour, Science and, 37 



Larerlid.T. Monograph of the. Dr. G. A. Boulenger. 



Vol. i., 403 

 I.artarius and Russula, A New Reagent for, M Barlot. 746 

 Ladybirds. The Utilisation of. against Insects Harmful to 



Cultivation in the South of France, P. Marrhal. 77R 

 Lahore Philnvophiral .Society, Proceedings of the. Vol i) 



Ijik." The Term. In Geography. J. Parkiniton, 89 

 I^ke \1cforia and the Sleeping Sickness, 762 



Lakher Head-hunters of Upper Burma, The, R. A. Lorrain, 



359 



Laminariaceae, The Life-history of the. Prof. Lloyd Wil- 

 liams, 551 



Land Reclamation, W. Gavin, 743 ; Dr. E. J. Russell, 744 



Landscape : Architecture, Prof. H. V. Hubbard and "T. 

 Kimball, 724 ; Visibility of the, during Rain, F. W. 

 Preston, 343 



Lantana in India, Indigenous Insect Pests as a Check on 

 the Spread of, 385 



Latitude of the Capitoline Observatory, G. Armellini, ii., 

 619 



Lead : Including Lead Pigments and the Desilverisation of 

 Lead, Dr. J. \. Srtiythe, 241 ; and Thallium, Combina- 

 tions of the Halogen Derivatives of, M. Barlot, 394 ; 

 White, its Use in Paint, Dr. A. H. Sabin, 276 



Leader Cable System, The, 760 



Leafhoppers, Two, Injurious to .Apple and Nursery Stock, 



773 . . 



Leaves, Dead, The Harmful .Action of, on Germmation, 



A. Lumiire, 818 

 Leeds University : Appeal Fund, 456 ; Report of, for 



1918-ig, 230 

 Leicestershire. G. N. Pingriff, 627 

 Leonid Meteoric Shower, The, W. F. Denning. 451 

 Lepidoptera Phalanae in the British Museum. Catalogue of 

 the. Supplement. Vol. ii.. Sir George F. Hampson. 78 

 Leptospira icteroides and Yellow Fever, H. Noguchi, 167 

 Lhasa and Central Tibet. E. H. C. Walsh, R48 

 Life : Fossils and, Dr. F. .A. Bather (Presidential Address 

 to Section C of the British Association). 161 ; The 

 Mystery of, as Interpreted by Science, R. D. Taylor, 490 

 Light : of the Eclipsed Moon and Solar Activity. .A Relation 

 between the. A. Danjon. 586 ; produced by Rubbing 

 Quartz Pebbles together. Sir E. Ray Lankester. 310: 

 scattered by Gases, A Re-examination of the, in respect 

 of Polarisation. II., Experiments on Helium and 

 Argon, Lord Rayleigh, 362 : The Absorption and Scat- 

 tering of, Sir A. Schuster, 4^ : The Velocity of. Popular 

 Relativity and, Sir Oliver Lodge, 321; 

 Lightinjj. Progress in, /;4,:; 



Lincolnshire Naturalists' Union Transactions. 1919. 124 



Linear : Substitutions on Five Symbols. Representation of 



the Simple Group of Order 660 as a Group of. Dr. W. 



Burnside. 520 ; Transformations and Functions of 



Positive Ty^pe, Dr. J. Mercer, 848 



Liometopum apiculalum, Mayr, Thermo-kinetics of, H. 



Shapley, 587 

 Liquid : Air and the Liquefaction of Gases, Dr. T. O'Conor 

 Sloane. Third edition, 404 ; Fuel in Peace and War. 

 Sir Frederick Black, 817 

 Literature for Men of Letters and Science in Russia, L. F. 



Schuster, 728 

 Lithium, The Constitution of. Dr. F. W. Aston and G. P. 



Thomson, 827 

 Liverpool : Observatorv, Bidston. Report for 1917-19, 671 : 

 University Tidal institute. First Annual Report of the. 

 30 

 Livingstone College. Report of. for 1919-20, 679 

 Ljungstrom Steam Turbine, Tests on a. Capt. H. R. Sankey, 



■•■iO 

 Llangollen District. The Lower PaliEOzoic Rocks of the, 

 with especial reference to the Tectonics, Dr. L. J. Wills 

 and B. Smith, 746 

 Lobster, Tube-dwelling Phase in the Development of the. 



Prof. W. C. Mcintosh, 441 

 Lorkyer. Sir Norman. Memorial Tributes to. Sir Archibald 

 Geikie. 20; Sir W. T. Thiselton-Dver, 21 : Sir Fxiward 

 Thorpe, 23 ; Sir William A. Tilden,' 14 : Sir T. Clifford 

 Allbutt; Prof. T. G. Bonnev, 25; Dr. H. Deslandrei, 

 383 

 I^ndon : County Council, Handbook of Lerturei and Classes 

 for Teachers, 34 : School of Economics and Political 

 Science Calendar. 134 ; (Roval Free Hospital) School 

 of Medicine for Women. Sir "T-eonard Rogers appointed 

 Stuart Mill lecturer In Tropical Medicmr. and Miss 

 Dorothy Mnughan Lecturer in Pharmacy at the, ^84 : 

 .School of Tropical Medicine. History of the, f^ord 

 Milner, 416: New Premises opened by the Duke of 

 York, 416; The, 741: The University Problem in. 129: 

 University, The Proposed Site for, H. A. L. Fisher, 



