Nature, ~| 



■ne 14, jgofij 



Index 



xlvii 



Spring (Prof. W.), the Colour of Natural Waters, 159 

 Spurrell (H. G. F.), Articulation of the Vertebrate Jaw, 430 

 Squire (W. A.), on the Art of the Bushman, 66 

 Ssetschenoff (Prof. Iwan Michaelowitsch), Death and 



Obituary Notice of, 133 

 Standard Atlas of England and Wales, 218 

 Stansfield (Herbert), Behaviour of Liquid Films formed 

 from a Solution of Saponin in Water, 455 ; Observations 

 and Photographs of Black and Grey Soap Films, 597 

 Stanton (Dr. T. E.), Resistance of Iron and Steel to Re- 

 versals of Direct Stress, 617 

 Stark (Dr. J.), the Spectrum of the Positive Rays (Canal- 

 strahlen), 79 ; Emission of Light by Kanal-strahlen 

 Normal to their Direction, 389 ; Spectral Series in Rela- 

 tion to Ions, 533 

 Stars : Photographic Star Catalogue, iS ; the Spectrum of 

 Nova Persei No. 2, 18; Radial Velocities of Certain 

 Variable Stars, Prof. Frost, 39 ; a Suggestion for the 

 Next International Scheme, W. E. Cooke, 63 ; Catalogue 

 of Variable Stars, 87 ; Star Calendar for 1906, 87 ; 

 Spectra of Bright Southern Stars, no; a Catalogue of 

 42S0 Stars, no; Catalogue of Binary Star Orbits, Prof. 

 R. G. Aitken, 136; Nova Aquilas No. 2, J. A. Park- 

 hurst, 136; Nebulosity around Nova Aquilae, Prof. Frost, 

 279; Prof. E. C. Pickering, 279; the Supposed Nebu- 

 losity around Xova Aquilae No. 2. Prof. Frost, 518; 

 How to Know the Starry Heavens, Edward Irving, 196 ; 

 Measures of Double Stars, Messrs. Lewis, Furner, and 

 Bowyer, 20S ; Micrometer Measures of Double Stars, 

 H. E. Lau, 232 ; Double Star Orbits, Prof. Doberck, 

 305 , Micrometer Measures of Struve Double Stars, Dr. 

 H. E. Lau, 495 ; the Orbit of | Ursa? Majoris, N. E. 

 Norlund, 255 ; Right Ascensions of the Eros Comparison 

 Stars. Dr. Fritz Cohn, 305 ; Observations of Standard 

 Velocity Stars, Mr. Slipher, 326 ; a Catalogue of Spec- 

 troscopic Binaries, Prof. Campbell and Dr. H. D. Curtis, 

 352 ; Observations of Eros, 375 ; Catalogue of Stars 

 within Two Degrees of the North Pole, Dr. Caroline E. 

 Furness, 375 ; the Increasing Period of $ Lyrae, Dr. 

 Alex. W. Roberts, 375 ; the Ring Nebula in Lyra, Dr. 

 Newkirk, 448 ; Prof. E. E. Barnard, 448 ; Twenty-five 

 New Variable Stars, Miss Leavitt, 448 ; Remarkable 

 Variation in the Spectrum of ( Bootis, Drs. H. Luden- 

 dorff and G. Eberhard, 474 ; Catalogue of 3799 Bright 

 Stars, J. Bossert, 405 ; the System of the Stars, Agnes 

 M. Clerke, Prof. R. A. Gregory, 505 ; New Variable 

 Stars in the Region about 7 Sagittas, Prof. Wolf, 518; 

 a Systematic Study of Faint Stars, Prof. Pickering, 545 ; 

 Stars having Peculiar Spectra, Prof. Pickering, 545 ; 

 Mrs. Fleming, 545 ; Objective-prism Determinations of 

 Stellar Radial Velocities, Geo. C. Comstock, 592 ; the 

 Observation of Long-period Variables, Prof. Pickering, 

 5q2 ; Der Bau des Fixsternsystems mit besonderer 

 Beriicksichtigung der photometrischen Resultate, Prof. 

 Hermann Kobold, 603 ; Catalogue of Pleiades Stars, Dr. 

 R. S. Dugan, 617 



Statics : an Introduction to the Design of Beams, Girders, 

 and Columns in Machines and Structures, with Examples 

 in Graphic Statics, W. H. Atherton, 1 ; Les Origines de 

 la Statique, P. Duhem, Supp. to November 30, ix 



Statistics : Mortality caused by Wild Animals and Venom- 

 ous Snakes during 1904, 15 ; the Decline of Human 

 Fertility, Drs. Newsholme and Stevenson, 230 



Stature, Result of War affected by Soldier's, John 

 H. Twigg, 340, 441 ; Major-General W. E. Warrand, 414 



Steam : Heat and Steam (Elementary), an Introductory 

 Supplement to a Text-book of Marine Engineering for 

 the Use of Naval Officers, Engineer-Commander Tomp- 

 kins, 557 



Stebbing (E. P.), the Avenues and Fruit Gardens of Quetta, 

 253 ; the " Borer " Beetle, 323 ; Bark-boring Beetles in 

 Pine Forests, 348 



Steel, Concrete, a' Treatise on the Theory and Practice of 

 Reinforced Concrete Construction, W. Noble Twelvetrees. 

 457 



Steel, Elementary Practical Metallurgy, Iron and, Percy 

 Longmuir, A. McWilliam, 509 



Steele (Dr. B. D.), the Accurate Measurement of Ionic 

 Velocities, 166 



Steinmann (Dr. G), Geologische Beobachtungen in den 

 Alpen, 546 



Steinwehr (H. v.), Influence of the Size of Crystals of Mer- 



curous Sulphate on its Relations to Electromotive Force, 



37 

 Stellar Magnitude of the Sun, Prof. Ceraski, 279 

 Stellar Universe, Our, Thomas Edward Heath, W. E. 



Rolston, 581, see Stars 

 Step (Edward), Wayside and Woodland Blossoms, 3 

 Stephens (Dr. J. W. W.), the Practical Study of Malaria 



and other Blood Parasites, 148 

 Stevens (Consul), Agriculture in the Trans-Caucasus for 



the Year 1905, Ravages of Locusts, 324 

 Stevens (Mr.), Structure of the Placenta of an Elephant, 59 

 Stevenson (Dr.), the Decline of Human Fertility, 230 

 Stewart (A. W.), Relations between Absorption Spectra 



and Chemical Constitution, part i., Chemical Reactivity 



of the Carbonyl Group, 382 ; part, ii., the Quinones and 



a-Diketones, 382 ; Nitranilines and Nitrophenols, 382 

 Stewart (C), on the Climate of South Africa, 19 

 Stiatteri (Pre. Raffaello), Determination of the Distances 



of the Epicentre of an Earthquake from the Duration of 



the Preliminary Tremors, 206 

 Stilhnan (Thomas B.), Engineering Chemistry, a Manual 



of Quantitative Chemical Analysis for the Use of 



Students, Chemists, and Engineers, 387 

 Stimulus and Memory, 338 

 Stomata and Phylogeny, 436 

 Stone Age of the Zambesi Valley, the, and its Relation in 



Time, Col. H. W. Feilden, C.B., 77 

 Stonehenge, Notes on, Sir Norman Lockyer, K.C.B., 



F.R.S., 153, 224 

 Stones, Sounding, at Ch'iifu, Shantung, Alfred Tingle, 222 

 Stones, Sounding, Cecil Carus-Wilson, 246 ; T. Dillon, 



270 ; Cyril Crossland, 297 ; W. G. Barnett, 390 ; O. F. 



Wheeler Cuffe, 464 

 Stoney (G. G.), the Evolution of the Steam-Turbine, 157 

 Stout (Prof.), Things and Sensations, 17 

 Strachey (Lieut. -General Sir Richard, F.R.S.), Symons 



Gold Medal awarded to, S4 

 Straits of Messina, Currents in the, Prof. Platania, 621 

 Strange Pets and other Memories of Country Life, My, 



R. Bell, 76 

 Stratton (F. J. M.), Planetary Inversion, 599 

 Strbmgren (Dr. E.), Comet 1905c, 208 ; New Elements and 



Ephemeris for Comet 1905c, 232 ; Comet 1906c, 51S, 569 

 Strong (W. W.)i the Spectrum of the Magnesium Spark 



under Various Conditions, 86 

 Strutt (Hon. R. J., F.R.S.), Radio-activity of Ordinary 



Matter in connection with the Earth's Internal Heat, 



173; Radio-activity, Prof. E. Rutherford, F.R.S., 289 

 Struve Double Stars, Micrometer Measures of, Dr. H. E. 



Lau, 495 

 Submarine Telegraph Cables, Death of Jules Despecher, 



3 21 

 Sudborough (J. J.), Influence of Substituents in the Trini- 

 trobenzene Molecule on the Formation of Additive Com- 

 pounds with Arvlamines, 551 

 Sugar and the Sugar Cane, Noel Deerr, 75 

 Sugar, Beet-, the Growth of, in England, 539 

 Sulphur-Dioxide on Plants, the Action of. Prof. Dr. A. 



Wieler, F. Escombe, 385 

 Sumpner (Dr. W. E.), the Theory of Phasemeters, 47 

 Sun : the Zodiacal Light to the North of the Sun, Prof. 

 Newcomb, 161 ; the Figure of the, Dr. C. L. Poor, 279 ; 

 Stellar Magnitude of the, Prof. Ceraski, 279; Magnetic 

 Observations during the Total Eclipse of the Sun, Father 

 P. Cirera, 400 ; the Solar Eclipse of 1905, Dr. W. J. S. 

 Lockyer, 537 ; Photographies de la Granulation Solaire 

 faites a Poulkowa, Prof. A. Hansky, W. E. Rolston, 

 401 ; the Temperature of the, Henri Moissan, 569 

 Sun-spot Minima and Volcanic Eruptions, Possible Rela- 

 tion between, H. I. Jensen, 210 

 Sun-spot Spectra, Profs. Hale and Adams, 425 

 Sun-spots, the Periodicity of, Prof. Arthur Schuster, 



F.R.S., at Royal Society, 378 

 Surface, the Maximum Number of Double Points on a, 



A. B. Basset, F.R.S., 246 

 Sutton (J. R.), Results of Observations made with a Black 



Bulb Thermometer in vacuo, 324 

 Swedish Chemical Industries, Development of the, 399 

 Swinburne (J.), Temperature and Efficiency of Thermal 

 Radiation, 95; Physics of Ore Flotation. 214 



