XXVIII 
INDEX 
[Wature, Dec. 2, 1886 
ee 
sv sSsSsssssSSSssSsSSSSsssssss 
Silk Cultivation in India, 14 
Silurian Rocks of North Wales, Prof. T. McKenny Hughes, 
M.A.; 512 
Silver-Blue Cloudlets again, Prof. C. Piazzi Smyth, 311 
Simpson (B., M.D.), Scientific Memoirs by Medical Officers of 
the Army of India, E. Klein, 75 
Singular Case, Prof. Henry H. Giglioli, 313 
Sirius, Companion of, Prof. Young, 176 
Sjogren (Dr. H.), Mud Volcanoes near Baku, 464 
Skin, Experiments for Ascertaininz the Influence of the Nerves 
on the, Dr. Joseph, 332 
Skin, Black, Flinders-Petrie on, F. C. J. Spurrell, 76 
Skulls, Hova and Salakava, M. Trucy, 185 
Slater (J. W.), Origin of Colours in Insects, 70 
Smell, Sense of, Arthur Mitchell, 521; G. Henslow, 572 
Smeru, Eruption of Volcano at, 14 
Smirnoff (M.), Vegetable Zones of the Caucasus, 85 
Smith (E. G.), Pseudomorphs of Limonite after Pyrite, 158 
Smith (Hamilton, Jun.), on Wrought-Iron Conduit Pipes, 62 
Smith (Percy), Ascent of Tarawera, 544 
Smithsonian List of Foreign Correspondents, 397; List of 
Institutions in the United States receiving the Smithsonian 
Publications, 397 ; Smithsonian Reports, Prof, Barker on the 
Progress of Physics, Prof. E. S. Dana on the Progress of 
Mineralogy, 370 
Smoke-Abatement Institution, National, E. White Wallis, 203 
Smyrna, Chios, &c., Earthquakes at, 130 
Smyth (Prof. C. Piazzi), Flora of South Africa, 99 ; the Silver- 
Blue Cloudlets again, 311 
Snake, Black, containing 109 Young Ones, Capture in Tas- 
mania of, 201 
Snakes, Mimicry in, W. H. Tooke, 547; A. B. Meyer, 596 
Snow: on the Form of Mole-Hills thrown up under, Prof. 
Thos. McKenny Hughes, F.R.S., 3; Permanently Frozen, 
Depth of, in Polar Regions, 485 
Snowfall (Himalayan), Blanford on the, 201 
Soap from Grease of Sheep’s Wool, 530 
Society of Arts, Medals of, 129 
Sohnke (L.), Electrification of Ice by Water Friction, 462 
Solar Activity during the First Half of 1886, 278 
Solar Corona, Photography of the, W. Huggins, F.R.S., 469 ; 
A. A. Common, F.R.S., 470 
Solar Eclipse, Total, August 28-29, 1886, 272 
Solar Halo, T. H. Tizard, 168; and Sun Pillar seen on June 
5, 1886, F. A. Bellamy, 193 
Solar Meteorology, Signor Tacchini, 194 
Solar Physics, J. F. II. Schulz, 620 
Solar Radiation, recording Direct Intensity of, 477 
Solar Spots and Faculz, J. Delauney, 564 
Solar System : Spectroscopic Determination of the Motion of, in 
Space, 131 ; Motion of, through Space, M. P. Ubaghs, 158 
Soleillet (P.), Death of, 490 
Solomon Islands, on the Mode of Formation of the Coral Reefs 
of the, Dr. H. B. Guppy, 307; H. B. Guppy’s Proposed 
Work on the Solomon Islands and their Natives, 370 
Solution, Laws of, W. Durham, 263, 468 
Solutions, W. Alexejew, 355; Certain Physical Constants of, 
506 
Somerset, West, 
Ussher, 513 
Sommier’s Expedition to Lapland and Finland, 248 
Sorby (Dr. H. C., F.R.S.), Microscopical Structure of Steel, 
6 
Lower and Middle Devonian in, W. E. 
3 
South Georgia, Vegetation of, W. B. Hemsley, 106 
Species Making, Devonian Lamellibranchiata and, H. S. 
Williams, 539 
Species, Origin of, Physiological Selection, an Additional 
Suggestion on the, Dr. Geo. J. Romanes, F.R.S., 314, 336, 
360, 362, 407, 439, 545; Prof. Darwin, F.R.S.,-407, 468; 
« A. R. Wallace, 467; J. H. A. Jenner, 468; F. Evershed, 
468 ; E. Catchpool, 617 
Spectrum Analysis: M. Janssen’s Experiments in Spectroscopic 
Analysis, 38 ; M. Trépied on the Spectrum of Fabry’s Comet, 
40 ; a New Spectrometer, J. A. Steggall, 92; Spectroscopic 
Determination of the Motion of the Solar System in Space, 
131 ; New Elements in Gadolinite and Samarskite detected 
Spectroscopically, W. Crookes, F.R.S., 160; Absorption- 
Spectrum of Oxygen, M. Janssen, 176, 187 ; Solar Spectrum, 
Drs. Miiller and Kempf, 176; the Ultra-Violet Spectrum of 
Cadmium, Louis Bell, 208; on a Method of Distinguishing 
Rays of Solar from those of Terrestrial Origin, Prof. Cornu, 
210; Further Discussion of the Sunspot-Spectra Observations 
made at Kensington, J. Norman Lockyer, F.R.S., 251 ; Ab- 
sorption-Spectrum of Didymium, William Crookes, F.R.S., 
266; M. Janssen’s Researches on Influence of Gases on the 
Rays of the Spectrum, 299 ; Spectrum of Comet ¢c 1886, O. T. 
Sherman, 402; Spectrum of the Negative Pole of Nitrogen, 
M. H. Deslandres, 380 ; Photographs of Stellar Spectra, 
Exhibiting Bright Lines, 439; Photographs of Stellar 
Spectra, E. C, Pickering, 569 ; Prof. Rowland’s Photographic 
Map of the Normal Solar Spectrum, 490; Wave-Length 
Tables of Spectra of Elements, 506 ; Absorption-Spectra of 
Uranium Salts, Dr. W. J. Russell, F.R.S., and W. Ifo 
Lapraik, 510 ; Thollon’s Map of the Solar Spectrum, 579 ; 
Fractionation of Yttria, W. Crookes, F.R.S., 584 
Speech, Western, Arabic Analogues in, E. M. Clerke, 578 
Spencer (W. B.), Parietal Eye of Hatteria, 33 
Spoerer (Dr.), Solar Spots and Protuberances, M. Faye, 588 
Sponges, Nervous System of, Dr. R. von Lendenfeld, 538 
Sprengel (Dr.), on Panclastite, 32 
Squall of January 13, 1886, R. H. Scott, F.R.S., 187 
Srinagar, Cashmere, Earthquake at, 627 
Stamens, Superimposed, Thos. Meehan, 17 
Standard Measures, Dr. Pernet on, 22 
Starfish, Abnormal, Prof. W. A. Herdman, 596 
Stars: Binary Star a Centauri, 61; Binary Star + Cygni, 
J. E. Gore, 603; Binary Star y Coronz Australis, H. C. 
Wilson, 176 ; Binary Star O3, 234, 459; Observatory Work 
at Yale College, 84; Stars with Remarkable Spectra, 85 ; 
Catalogue of Comparison Stars, 110; Variable Stars, III, 
132, 156, 177) 435, 459, 491, 502, 532, 556, 580, 604, 628 ; 
M. Espin, 110; Suspected New Variable Star, 459 ; Occul- 
tations of Stars by the Moon, rit, 132, 156, 435, 459, 491, 
532, 556, 579; Telegraphic Longitude Determinations in 
India, 131; Zone Observations of the Astronomische 
Gesellschaft, 131; Prof. Holden and the Astrono- 
mische Gesellschaft, 490; Publication der Astronomischen 
Gesellschaft, Herr Romberg, 556; Apparent Oscillation of, 
H. de Parville, 163; Photographs of Stellar Spectra, E. C. 
Pickering, 439, 569 ; Photographic Determinations-of Stellar 
Positions, Dr. B. A. Gould, 502, 560; Heliometric Observa- 
tions of the Pleiades, Dr. Elkin, 502, 531; Gore’s Nova 
Orionis, T. E. Espin, 502; Stellar Photometry, Mr. 
Chandler, 531; Personal Equation in Observations of Double 
Stars, M. Bigourdan, 555; 10 Sagittee, S. C. Chandler, 604 ; 
Distribution of, in Schénfeld’s Durchmusterung, 627; Sun 
and Stars, J. Norman Lockyer, F.R.S., 41, 205, 227, 280 
Start (T. W. K.), Exercises on Mensuration, 49 
Statics with Relation to Physics, G. M. Minchin, Major Allan 
Cunningham, 165 
Stationary Waves in Flowing Water, Sir William Thomson, 
F.R.S., 507 
Steam, the Electricity of, M. Palmieri, 277 
Steel: Steel Wire, Dr. J. Percy, 62; Blow-holes in Steel, Me 
Head, 62; Endurance of Steel Rails, F. W. Webb, 63; 
Microscopical Structure of, Dr. H. C. Sorby, F.R.S., 63; 
Production of Soft Steel in a New Sort of Fixed Converter, 
512; Casting Chains in Solid Steel, F. Gautier, 576; Strain- 
Effect of Sudden Cooling in Steel and Glass, Barus and 
Strouhal, 208 
Steggall (J. E. A.), a New Spectrometer, 92 
Stejneger (Dr, Leonhard) : Explorations in Behring Straits, 15 ; 
Results of Ornithological Explorations in the Commander 
Islands and Kamchatka, 323 ; Ornithological Explorations in 
Commander Islands and Kamchatka, 619 
Stellar Photography, Researches in, Rev. Prof. Pritchard, 
F.R.S., 305 
Stellar Spectra, Draper Memorial Photographs 04 E. C. Picker- 
ing, 439 
Stenger (Fr.), Phenomena of Fluorescence, 355 
Stephens (Prof.), Recent Eruptions in the Taupo Zone, New 
Zealand, 379 
Stephenson (David), Death of, 274 
Steppes (the South Russian), Prof. Beketoff on, 226 
Stereoscope, New Form of, A. Stroh, 68 
Sternberg (Dr.), Micrococcus pasteuri, 162; Experiments with 
Hydrophobia Virus, 74 
Stevenson (J.), Hymenomycetes Britannici—British Fungi, 97 
Stewart (Prof. Balfour, F.R.S,), Madras Magnetical Obszrva- 
tions, 3; on Terrestrial Magnetism, F. S. Trouton, 53 
Stewart (T.), Rainfall of the Cape Colony, 573 
Stinging-Nettle, the Poison of the, A. W. Bennett, 53 
