—s 
Nature, 
August 11, 1923 

Intermittent Pressure by Boiling Water, The Production 
of an, C. R. Darling, 830 
Internal Combustion: Engine, The: H. R. Ricardo. 
Vol. I.: Slow-speed Engines, 43 ; a Text-book for the 
Use of Students and Engineers, H. E. Wimperis. 
Fourth edition, 320; Motors, The Theory of, M. 
Brutzkuo, 903 
International: Astronomical Union, The, ror; Latitude 
Observatory at Ukiah, California, U.S., appropriation 
for the, 476; Meteorological Committee, Report of 
the Eleventh Ordinary Meeting, 26 
Intersexuality, Studies in, I., F. A. E. Crew, 653 
Intestinal: Disinfection, The Possibility of Realising, A. 
Lumiere, 383 ; Parasite of Man, An, 379 
Invariants Intégraux : Lecons sur les, Cours professé a la 
Faculté des Sciences de Paris, Prof. E. Cartan, 217 
Iodine, A Hydrate of, P. Villard, 867 
Iodosalicylic Acids, The, P. Brenans and C. Prost, 903 
Ionic Mobilities in Air and Hydrogen, J. J. Nolan, 35 
Ionised Gas, The Opacity of an, J. Q. Stewart, 186 
Ions in Air, Experiments on Large, J. J. Nolan and J. 
Enright, 794 
Ireland, Geological Survey of, Catalogue of Maps, Memoirs 
and Sections published by the, 892 . 
Iridescent Colour, Studies of, and the Structure producing 
it: Lord Rayleigh, 346; IV., Iridescent Beetles, 
Lord Rayleigh, 418 
Trish Sea Plankton, 448 
Iron: and Nickel, Alloys of, Constitution of the, Dr. 
Hanson and J. R. Freeman, jun., 861; and Steel: 
Institute, the Bessemer gold medal of the, awarded 
to Dr. W. H. Maw, 300; the Metallurgy of, Advances 
in, Sir Robert Hadfield, 232 ; Carbide of, The Etching 
Properties of the a-and 8-forms of, F. C. Thompson 
and E. Whitehead, 762; The Corrosion of, in the 
Presence of Iron Sulphide, R. Stumper, 762; The 
Demagnetisation of, by Electro-magnetic Oscillations, 
S. K. Mitra, 727; Total, The Histochemical Detection 
of, in Tissues by the Method of Incineration, A. 
Policard, 692 
Irrigation in India, Triennial Review of, 1918-1921, 388 
Ismaili Sect of Islam, The, W. Ivanov, 339 
Isoetacee, The, N. E. Pfeiffer, 443 
Isopod, New, from Central Australia, Prof. C. Chilton, 823 
Isotopes: M. de Broglie, 510; The Separation of, J. 
Kendall and E. D. Crittenden, 763 
Isotopic Ions, Separation of, J. G. Pilley, 848 
Italian Society for the Advancement of Science, The, 685 
Jades of Middle America, The, H. S. Washington, 36 
Japanese: Journal of Chemistry, the, 614; Journal of 
Physics, the, 478; Marine Triclads, T. Kabouraki, 
75 3; Plant Products, Chemistry of some, Y. Asahina, 
23 
Jellies, Deformations of, by the Action of an Electric 
Current, F. Michaud, 727 
Jelly, The Rigidity of, F. Michaud, 35 
Jenner: Edward, 69; Centenary Celebration in Paris, 
156; pictures and relics, exhibit of, 230 
Jupiter: New Observations of, F. Sargent, 27; The 
Eighth Satellite of, Prof. E. W. Brown, 546; The 
Great Red Spot on, W. F. Denning, 233 ; The Planet, 
F. Sargent, 580 
Jupiter’s Satellites, The Theory of, Prof. de Sitter, 717 
Kahn, Albert, Travelling Fellowship, the, awarded to 
W. Randerson, 864 
Kammerer’s, Dr.: Alytes, Dr. W. Bateson, 878; Experi- 
ments, Prof. E. W. MacBride, 841 
Kansou Earthquake, The: Determination of the Epi- 
centre, Mlle. Y. Dammann, 588 
Kaolins, Clays, etc.: Action of Heat on, A. Bigot, 171; 
Colloidal Plasticity, A. Bigot, 831 
Kent’s Cavern Anthropology and the Ice Age, H. J. 
Lowe, 95 
Kew, Royal Botanic Gardens: damage from smoke in 
the, 679; exhibit of abnormal growths taken from 
trunks, etc., of trees and shrubs, 299; exhibition 
of funeral wreaths, etc., from Egyptian tombs, 266 ; 
exhibit of sports requisites, 476 


Title Index xiii 

Kincardineshire, the late G. H. Kinnear, 144 
Kinematograph Studio Technique, L. C. Macbean, 427 
King’s English, the, 490 
Knotted Curves, A Lemma on Systems of, J. W. Alexander, 
764 
Knowledge, For the Diffusion of, ro 
Krypton: and Argon, The Hydrates of, R. de Forcrand, 
310; and Xenon, The K Absorption Discontinuity of, 
M. de Broglie and A. Lepape, 903 ; the Electrons in, 
Critical Velocities of, and the Production of the 
Spectra of this Gas, G. Déjardin, 554 
Labour and Science in Industry, 385 
Lactic Fermentation, Influence of Copper on the, M. 
Fouassier, 451 
La Force motrice électrique dans |’Industrie, E. Marec, 
494 
Lamba Language, The Grammar of the, C, M. Doke, 460 
Lamp Oil and Alcohol containing a High Percentage of the 
Latter, Utilisation (in a Motor) of a Mixture of, M. 
Dumanois, 831 
Land Molluscs, Dr. N. Annandale, 656 
Langley Aeroplane, The, 25 
Laramie Problem of the Rocky Mountain, The, F. H. 
Knowlton, 548 
L’Are électrique, M. Leblanc fils, 805 
Larch Chermes (Cnaphalodes strabilobius 
searches upon the, E. R. Speyer, 274 
Lea Valley, The late Glacial Stage of the (third report), 
S. H. Warren, 419 
Lead: and Turpentine in the Professional Pathology of 
Painters, The Réles of, F. Heim, E. Agasse-Lafont, 
and A. Feil, 243; in Britain, Production of, Prof. 
H. Louis, 512; The Hardness and Spontaneous 
Annealing of, A. L. Norbury, 762; The Vapour 
Pressure of. I., A. Egerton, 381 
League of Nations Committee on Intellectual Co-operation, 
work of the, Prof. K. Bonnevie, 829 
Leeds University: Report on the Textile Industries and 
Colour Chemistry Departments of, 205; Prof. 
Smithells re-appointed Pro-Vice-Chancellor ; J. Robb 
appointed district lecturer in agriculture; Dr. W. 
H. M. Telling to be professor of therapeutics in the 
department of medicine, 307; conferment of an 
honorary degree upon E. F. L. Wood, 380; agree- 
ment with Basle University for a scheme of mutual 
recognition of courses and examinations, 449; con- 
ference on full-time education for boys and girls 
and the choice of subjects for school examinations, 
586; course of training in printing; grants from 
the County Borough Councils of Dewsbury and 
Halifax; Dr. R. W. Whytlaw-Gray appointed 
professor of chemistry, 586; a War Memorial by 
E, Gill, 651; Report for 1921-22, 688; grant from 
the Huddersfield Town Council ; appointments, 900 
Leibniz, Some Problems in the Philosophy of, L. J. 
Russell, 726 
Leicester, University College, Dr. Ethel N. Miles Thomas 
appointed lecturer in botany and zoology at, 518 
Leodicide, Reproduction in the, Prof. A. L. Treadwell, 28 
Lepidoptera, Spermatogenesis of the, Prof. J. B. Gatenby, 
568 ; H. G. Cannon, 670 
Leprosy, Treatment of, Sir Leonard Rogers, 858 
Leptoplana, A New Gregarine Parasite of, Prof. B. L. 
Bhatia, 116 
Leucocytic Secretions, A. Carrel, 555 
Leucotermes lucifugus, A New Appearance of, P. Lesne, 832 
Lhota Nagas, The, J. P. Mills. With an Introduction and 
Supplementary Notes by J. H. Hutton, 282 
Liberal Education in Secondary Schools, 862 
Life : Contingencies, E. F. Spurgeon, 769; in the Southern 
Hemisphere, The Distribution of, and its Bearing on 
Wegener's Hypothesis, K. H. Barnard and others, 
I 
Kalt.), Re- 
13 
Light: Elements, The, and the Whole Number Rule, 
Dr. F. W. Aston, 739; in Gases and Liquids, The 
Theory of Dispersion and Scattering of ; The Complex 
Anisotropic Molecule in Relation to, Dr. L. V. King, 
667; in Paris and its Neighbourhood, The Loss of, 
L. Besson, 207; Projection of, in Optical Lanterns 
