xliv 
Lndex 
[ Nature, 
October 7, 1915 

Dr. L.. Doncaster, 197; in Plants, the Evolution of, 
Prof. J. M. Coulter, 447 
Sexual Reproduction in Plants, Significance of, 447 
Shag, the Breeding Habits of the, E. Selous, 329 
Shah Daula’s Rats, M. L. Dames, 434 
Sheffield University: Bequest to, 80; Exhibition of Ap- 
paratus, 138; Dr. J. S. C. Douglas appointer Professor 
of Pathology, 304; Foundation of a Laboratory, 278 
Shellfish: and Sewage, 301; Terrestrial and Fluviatile, 
H. Findon, 465 
Shells : Cast-iron, J. Keith, 437; the Manufacture of, 712 
Shinumo Quadrangle, the, L. F. Noble, 128 
Shore-lines in Eastern Finland, W. W. Wilkman, 239 
Siberia, Through, Dr. F. Nansen, 36 
Sigaut, Dr. Max, Prize of the Paris Academy of Medicine, 
649 
Similitude: Galileo and the Principle of, Prof. D’Arcy W. 
Thompson, 426; the Principle of, J. L., 644; Lord 
Rayleigh, 66, 202, 644; Prof. D’Arcy W. Thompson, 
202; Dr.. D. Riabouchinsky, 591 
Siwalik Teeth, Dr. G. E. Pilgrim, 277 
Skeleton Found at Gough’s Cave, Cheddar, C. G. Selig- 
man and F. G. Parsons, 329 
Skiagraphic Researches in Teratology, Dr. H. Rainy and 
Dr. J. W. Ballantyne, 27 
Skull of an Extinct Mammal, Dr. A. Smith Woodward, 
47 
Sleeping-sickness Country, Alone in the, Dr. F. Oswald, 
209 
Smithsonian : Institution, Annual Report of, 217; Institution 
Explorations, 275; Institution, Scientific Works of the, 
134; Physical Tables, sixth revised edition, prepared by 
F. E. Fowle, 534 
Smoke Bombs, 349 
Snakes: and Snake-charmers, Capt. Acton, 624; of Mada- 
gascar, etc., G. A. Boulenger, 415; of the Belgian and 
Portuguese Congo, etc., G. A. Boulenger, 249 
Social Service, Lectures on, 24 
Societal Evolution, Prof. A. G. Keller, 695 
Société Helvétique des Sciences Naturelles, Annual Session 
of the, 596, 650 
Society : of Chemical Industry, Annual General Meeting of, 
401; for Practical Astronomy, Monthly Register of 
the, 462 
Soda, Influence of, on a-Glucosidase, E. Bourquelot and 
A. Aubry, 722 
Sodamide and Hydrogen, Reaction between, F. D. Miles, 
195 
Sodium: the Coefficient of Expansion of, E. A. and E. 
Griffiths. 472; Vapour, Resonance of, in a Magnetic 
Field, Prof. the Hon. R. J. Strutt, 33 
Soil : Conditions and Plant Growth, Dr. E. J. Russell, new 
edition, 89; Management, Dr. F. H. King, 256; Pro- 
tozoa and Soil Bacteria, Dr. E. J. Russell, 499 
Soils, Changes in, Produced by Heating, Miss A. Wilson, 
251 
Solar-constant of Radiation, the Value of the, C. G. Abbot, 
F. E. Fowle, and L. B. Aldrich, 552 
Solar: Corona, Prophotographing the, E. B. Knobel, 301; 
Corona, Rotation of the, J. Bosler, H. Deslandres, 195; 
J. Bosler, 217; Energy, the Utilisation of, A. S. E. 
Ackermann, 358, 381; Radiation Measures in Egypt, 
Eckersley, 157; Vortices, Prof. G. E. Hale, 713 
Solenoids, Self-induction of, S. Butterworth, 335 
Solomon Islands, the Future of the, 351 
Somersetshire Archzological and Natural History Society, 
Annual Meeting, 458 
Sorghum, Sweet, H. E. Annett, 272 
Sorghum vulgare, Pers., G. C. Dudgeon, 570 
Sound: Steel for Rails and Structural Purposes, Sir R. 
Hadfield, 492; Velocity of, in Gaseous Mixtures, 
A. Leduc, 251 
Sources of Temporary Water Supply, 244 
South Africa: Appointments in Government Departments, 
471; Geological Survey of the Union of, no Report of, 
for 1914, 381 
South African: Association, the Pretoria Meeting of the, 
489, 684; Presidential Address, R. T. A. Innes, 714; 
Erysiphaceer, E. M. Doidge, 389; Mollusca, M. Con- 
nolly, 598; Museum, Report for 1914, 350 
South America, Moving Waves of Weather in, H. Helm 
Clayton, 306 
South-Eastern Union of Scientific Societies, the, 465 
South Indian Insects, Some, and other Animals of {mport- 
ance, T. B. Fletcher, 143 
South Wales Tornado of October 27, 1913, 98 
South-Western Polytechnic, Annual Gathering, 81 
Southern Nigeria, Languages from, N. W. Thomas, 29 
Species, Nature and Origin of, 49 
Specific : Heat of Steam, Measurement of the, J. H. Brink- 
worth, 334; Heats of Mixtures of Gases, A. Leduc, 139 
Spectra: given by B and y Rays of Radium, Sir E. Ruther- 
ford, 167; of Gases, the Continuous, E. P. Lewis, 394; 
of the Alkaline Earths, Enhanced Series of Lines in, 
Prof. W. M. Hicks, 500; of the Homogeneous 
Secondary X-rays, de Broglie, 501 
Spectroscopic Analysis of the N’Kandhla and other Meteoric 
Irons, Dr. J. Lunt, 354 
Spectrum: a Continuous, in the Ultra-violet, Prof. J. 
Barnes, 451; a Further Extension of the, Prof. T. 
Lyman, 343; beyond the Schumann Region, Extension 
of the, Prof. T. Lyman, 553; Lines, Behaviour of, of 
the Same Series, Dr. Royds, 437; Lines, Origin of 
Certain, T. R. Merton, 388 ; 
Spermatozoon, Entrance of, into the Egg, Prof. J, Loeb, 
657 
Sperm Whale, the, Dr. F. E. Beddard, 546 
Spider-crab, the Four-horned, H. N. Milligan, 624 
Spider Fauna of Scotland, the, Dr. A. R. Jackson, 569 
Spitsbergen, Dr. Bruce’s Expedition to, 154 
Spleen Rate, the, and other Splenic Indices, 
Christophers, 545 
Spotted Fever, Memorandum on, 13 
“S” Sound, on the Character of the, Lord Rayleigh, 645 
Stable-fly, the Feeding of the, Dr. Gordon Hewitt, 603 
Staffordshire, W. B. Smith, 615 
Standards, Bureau of, Papers in the Bulletin, 272 
Stanford University, Addition to Collections of, 223 
Star Charts for Meteor Observers, 100 
Starfish, Feeding of, H. N. Milligan, 271 
Stars, Measures of Southern Double, Innes and Van der 
Spuy, 354; Measuring Heat from, Dr. W. W. Coblentz, 
354; Measurement of the Distances of the, Sir F. W. 
Dyson, 383; Orbits of Variable Radial Velocity, 382; 
Short-period Variable, Von G. Hornig, 655; Wariable, 
Dr. Dugan, R. J. McDiarmid, 655; with Proper Motion 
exceeding o'50” Annually, A. van Maanen, 381; with 
Variable Radial Velocities, R. E. Wilson, R. F. San- 
ford, 156, 157 
State: and the Fisherman, the, Moreton Frewen, 330; 
Indifference of the, to Science, Sir A. Geikie, 523; 
Science and the, Sir W. Ramsay, 309 
Statesman’s Year Book, the, edited by Dr. J. Scott Keltie, 
assisted by Dr. M. Epstein, fifty-second annual publica- 
tion, 642 
Steam: Boilers, the Design of, and Pressure Vessels, Profs. 
G. B. Haven and G. W. Swett, 534; Engines, Mech- 
anism of, Prof. W. H. James and M. W. Dole, 
Major 
5 ~ 
Steel “Drafting, Structural, and Elementary Design, C. D. 
Conklin, jun., 425; Elastic Properties of, F. E. Rowett, 
82; Mild, the Change in Density of, Prof. F. C. Lea 
and W. N. Thomas, 548; Purification Process, Lord 
Chetwynd’s Electrical, 46; Suitable for Permanent 
Magnets, Prof. S. P. Thompson, 25 
Steels, the Superficial Deformations of, B. Bogitch, 474 
Stegocephalians, Certain Triassic, Lieut. P. Broom, 472 
Stegosaurus, the Genus, C. W. Gilmore, 276 
Stein’s (Sir Aurel) Explorations, 181 
Stela of Sebek-Khu, the, T. E. Peet, 270 : 
Stellar: Parallax, Photographic Determinations of, A van 
Maanen, 332; Spectra, A. de Gramont, 218; the Struc- 
ture of the Hy Line in, Dr. A. Hnatek, 99; Variability, 
Dr. H. Shapley, 572 
Stellenbosch, Bequest for a University at, by Mr. Marais, 
14 - 
Gtepeatonte Photography in the Study of the Proper 
Motions of Stars, J. C. Sola, 694 
Stevens Institute of Technology, 334 
Stock-breeding, Principles of, Prof. J. Wilson, 671 
