Nature, 
October 7, 1915 
Lndex 
Xxill 

Hosie (Sir A.), On the Trail of the Opium Poppy: a 
Narrative of Travel in the Chief Opium-producing 
Provinces of China, go < 
Hotchkiss (W. O.) and E. Steidtmann, Limestone Road 
Materials of Wisconsin, 614 
Houston (Dr. A. C.), Eleventh Report on Research Work, 
Metropolitan Water Board, 677 
Hovey (Dr. E. O.), Examination of Mont Pelée, etc., 349 
Howell (Dr. H. B.), a Foundational Study in the Pedagogy 
of Arithmetic, 62 
Howlett (F. M.), Chemical Entomology, 52 
Hrdli¢éka (Dr.), Anthropological Research in Eastern Asia, 
137; an Exhibit in Physical Anthropology, 638; Ex- 
ploration in Peru, 275 
Hiubl (A. F. von), translated by H. O. Klein, Three-colour 
Photography, 641 
Hubrecht (Prof. A. A. W.) [Death], 95; [Obituary article], 
121 
Hudson (O. F.), Etching Reagents, 102; Zinc-copper 
Alloys, 157 
Huggins (Lady) [Obituary], 123; Bequests of, 
to the City of London School, 361 
Humbert (P.), Equilibrium of a Fluid Mass, 251 
Hunt (Prof. T. F.) and Prof.°C. W. Burkett, Farm Animals, 
278; Bequest 
256 
Hunt (W. N.), Bequest to Dartmouth College, 414 
Huntington (Prof. A. C.), Effects of Heat and Work on 
Mechanical Properties of Metals, 102 
Hurry (Dr. J. B.), the Vicious Circles of Neurasthenia and 
their Treatment, 424 
Hurtzig (A. C.) [Obituary], 514 
Husband (J.), Mechanical Drawning, with Special Reference 
to the Needs of Mining Students, 535 
Hutchinson (Jonathan), awarded Jacksonian Prize, 180 
Huxley Memorial Lectures to the University of Birming- 
ham, with an Introduction by Sir Oliver Lodge, 32 
Hyde (R. R.), Drosophila confusa, a Fly of the Species of, 
153 
Hyndman (F.)., Electrical Conductivity of Metals, 240 
Iddings (Dr. J. P.), the Problem of Volcanism, 33 
Ingle (Dr. H.), a Manual of Oils, Resins, and Paints, vol. i., 
Analysis and Valuation, by Dr. H. Ingle and J. A. L. 
Sutcliffe, 202 
Innes (R. T. A.), Presidential Address to the Pretoria Meet- 
ing of the South African Association, 714 
Innes and Van der Spuy, Measures of Southern Double 
Stars, 354 
Isherwood (Rear-Admiral B. F.), [Obituary], 650 
Ivanof (Dr. V.), Leaves in Saxaul, 214 
Ives (Genl. Brayton), Bequest to Yale University, 223 
Iyengar (M. O. P.), Defoliation of some Madras Trees, 307 
Jackson (Prof. H.), the “Green Fluorescence” of X-Ray 
Tubes, 479 
Jackson (Miss A. C.), Plumage in some British Ducks, 569 
Jackson (Dr. A. R.), the Spider Fauna of Scotland, 569 
Jackson (Admiral Sir H.), appointed First Sea Lord, 377 
Jackson (Prof. H. S.), appointed to the Purdue University 
Agricultural Experiment Station, 693 
Jackson (R. F.), Basic Lead Acetate Solutions, 125 
Jacobs (Dr. M. H.), Heredity in Protozoa, 443 
James (Prof. W. H.) and M. W. Dole, Mechanism of Steam 
Engines, 559 
Jayaram (B. J.), the Charnockite Series of Rocks in South- 
West Mysore, 460 
Jekhowsky (B.), Delevan’s Comet, 27 
Jenkin (C. F.) and D. R. Pye, Thermal Properties of Car- 
bonic Acid, 334 
Jenkinson (Dr. J. W.), re-appointed Lecturer in Embryology, 
53; [Death], 432; [Obituary article], 456 
Jensen (P. B.), the Organic Matter of the Sea Bottom, 526 
Jervis-Smith (Rev. F. J.), Dynamometers, Edited and Ampli- 
fied by Prof. C. V. Boys, 557 
Jevons (Prof. F. B.), Philosophy : What is it?, 172 
Jewett (F. G.), the Next Generation, 173 
Johansen (A. C.) and A. Krough, Influence of Temperature, 
etc., upon the Rate of Development of the Eggs of 
Fishes, 435 



Johannsen (Dr. W.), Falske Analogier, etc., 178 
Johnson (Prof. D. S.), the Laboratory and Garden at 
Cinchona, 516 
Johnson (Prof. D. W.), Physiographic Features as a Factor 
in the European War, 443 
Johnson (J. W. H.), Biology of Sewage Disposal, 332 
Johnston (Sir H. H.), Life-Habits of the Okapi, 713 ; Mam- 
mals of Eastern Equatorial Africa, 510; the Languages 
of Southern Nigeria, 29 
Johnstone (Dr. J.), the Organism as a Thermodynamic 
Mechanism, 240 
Johnston (Dr. S. J.), Moreauia mirabilis, 722 f 
Joly (Prof. J.), Radio-Therapy : its Scientific Basis and its 
Teaching, 409; the Cancer Problem and Radio-activity, 
618 
Jolly (Prof.), the Electro-Cardiogram, 599 
Jonas (Sir J.), Gift to Sheffield University, 278 
Jones (C. M.), awarded the Gladstone Memorial Prize of the 
London School of Economics, 708 
Jones (Prof. F. Wood), External Genital System of Che- 
lonian Reptiles, 625 
Jones (H. C.) and others, the Absorption Spectra of Solu- 
tions, etc., 467 
Jones (Dr. H. Lewis), [Obituary], 152 
Jones (H. Spencer), the Structure of the Universe, 548 
Jones (H. S.), the Aberration Constant of Latitude Varia- 
tion, 493 
Jones (1), Guide to the Botanic Gardens, Dominica, 600 
Jones (Mrs. R.), Periodicity in Plant Growth, 26 
Jones (Prof. W.), Nucleic Acids: their Chemical Properties 
and Physiological Conduct, 116 
Jordan (F. W.), Experiment on Sunset Colours, 590 
Jordan (G. F. W.), Novel Laboratory Experiments, 389 
Juritz (Dr. C. F.), Chemical Composition of Karroo Ash, 
685; Plant Poisons of South African Plants, 15; 
Prickly Pear Problem in Australia, 352 
Kallen (Dr. H. M.), William James and Henri Bergson, 200 
Kalmus (H. T.) and C. Harper, Cobalt and Cobalt Alloys, 
240 
Kanthack (F. E.), Development of the Internal-Combustion 
Engine, 684 
Kapteyn (J. C.) and Adams (W. S}), 
Radial Velocities of Stars, 46 ; 
Kasim (Mohammad Bey), Some Arabic Weather Sayings, 
688 
Kaup (W. J.), Machine-shop Practice, Second Edition, 259 
Kaye (G. R.), Indian Mathematics, 560 
Kaye (Dr. G. W. C.), X-Rays: an Introduction to the Study 
of Réntgen Rays, 87 
Kayser (E.), the Ferments of Rum, 722 
Kearney (J.), [Obituary], 123 : : 
Keen (Prof. W. W.), Animal Experimentation and Medical 
Progress, 170 ; 
Keith (Prof. A.), Palzolithic Man in South Africa, 616 
Keith (J.), Cast-iron Shells, 437 
Kelleher (Prof. S. B.), Dr. M. W. Crofton, 377 
Keller (Prof. A. G.), Societal Evolution, 695 
Keller (V. A.), Botanical Geography of Saissan, 216 
Kellogg (Prof. V. L.) and Prof. R. W. Doane, Elementary 
Text-book of Economic Zoology and Entomology, 476 
Kelly (E. O. G.), a New Sarcophagid Parasite of Grass- 
hoppers, 332 
Kellas (Capt. A.), [Obituary], 709 
Keltie (Dr. J. Scott), awarded Paris Geographical Society 
Medal, 212; awarded the Gold Medal of the Royal Scot- 
tish Geographical Society, 568; Successor of, in Secre- 
taryship of Royal Geographical Society, 151; Assisted 
by Dr. M. Epstein, the Statesman’s Year Book, 52nd 
Annual Publication, 643 
Kemp (Stanley), Discovery of a Peripatid in the Eastern 
Himalaya, 304 
Kemp (W. G.), Discovery of a Fossilised Human Skull and 
Associated Remains, 297 
Kennedy (Prof. R.), Restoration of Paralysed Muscles, 82 
Kent (A. F. S.), Mechanism of the Cardiac Valves, 82 
Kenwood (Col. H. R.), “Health in the Camp,” 680 
Kerr (R.), [Obituary], 349 
Kershaw (G. B.), Sewage Purification and Disposal, 477 
Proper Motions and 
