A'alun; May 27, 1SS0] 



Southern Comet, 384, 425, 475, 502, 525, 575, 597, 618 



Si ace, Temperature of, and its Bearing on Terrestrial Physics, 

 James Cioll, 521 



Spain, Petrography in, 165 



Spectrum Analysis : on the Necessity for a New Departure in, J. 

 Norman Lockyer, F.R.S., 5 ; Some Points in the History of, 

 Dr. B, Stewart, F.R.S., 35; on Photographing Spectra of 

 the Stars and Planets, Dr. Henry Draper, S3 ; Mutual Attrac- 

 tion of Spectral Lines, C. S. Peirce, 108; M. Fievez on 

 Spectroscopy, iSS ; Capt. Abney on the Photographic Method 

 of Mapping the Solar Spectrum, 267 ; Fluorescent Spectrum, 

 267; on the Photographic Spectra of Stars, W. Muggins, 

 F. R.S., 209 ; Reversion of Sodium Line--, C. A. Young, 274 ; 

 the Spectrum of Ordinary Daylight, 426; the "Indigo" 

 Spectrum, 426 ; Comparison of Gas, Sun, Day, and the 

 Electric Light, 504; the Spectra of Nebula;, 576 



Spider, a Clever, LI. A. Morgan, 276 



"Spiders of Dorset,'.' with an Appendix containing Short 

 ptions of those British Species not yet found in Dorset- 

 shire, by 1 he Rev. O. Pickard, Cambridge, 273 

 Fishery, 19 



Wm., P.R.S.), on some of the Effects Produced 

 by an Induction Coil with a De Meritens Magneto- Electric 

 Machine, 433 ; J. F. Moulton on the Sensitive State of the 

 Vacuum I ischarge, 626 



S pouting Well, the Kane Geyser, some Particulars of the, 115 



I (F. C), Vertical Shafts in the Kent Chalk, 66 



I I rns, 155, 203, 251, 325, 349 .372. 4>7 



Stalactite Cavern, Discovery of, in the Adams Valley, Moravia, 



358 

 St.mi id's New Library Map of the W orld, 22 

 Stanley's Expedition, 360, 455 

 Stars: Cro-sley, Gledhill, and Wilson's " Handbook of Double 



Stars," 53; Double Star Observations at Chicago, S. W. 



liumhaui, 53 ; on Photographing the Spectra of the Stars and 



Planets, Dr. Henry Draper, S3; Parallax of a Small Star, 



117; Orbits of Binary, 141; Close Binary $5 Pegasi, 240; 



on the Photographic Spectra of, W. Hugyins, F. R.S., 269 ; 



Suspected Variable, 502 ; Micrornetric.il Measurements of 



Double Stars made at Cincinnati 1878 and 1S79, 512 

 Statesmanship, the Science of, 295 

 Statistical Society, 412, 507; Presentation of the Howard 



Medal, 91 

 Steam Injector, Irwin's, 474 

 Steel and Electricity, 117 

 Steel and Iron Wires, Etfects Produced by the Immersion of in 



Acidulated Water, Prof. D. E. Hughes, 602 

 Stereoscopic Experiments, 117 

 Stevenson (Thoma-), Description of an Instrument for Exploring 



Dark Cavities which are inacces-ible to Direct Light, 14 ; 



New Modes of showing Different Characteristics over small 



Arcs in Azimuth from the same Lighthouse Apparatus, 156 

 Stewart (Prof. Balfour, F.R.S.), some Points in the History of 



Spectrum Analysis, 35 ; Obituary Notice of J. Allan Broun, 



112] on the Long Period Inequality in Rainfall, 541 

 Stewart (James, C.E.), Explorations in Africa, 527 

 Stimuli in Sensitive Nerves, 454 



Stokoe (Paul Henry), Stags' Horns, 203; the Lophiomys, 226 

 Stone (O. C), a Few Months in New Guinea, 64 

 Stone (Ormond), Micrometrical Measurements of Double Stars 



made at Cincinnati 1S78 and 1S79, 512 

 Stone in the Nest of the Swallow, Dr. P. P. C. Hoek, 494 ; 



J. E. Harting, 590 

 Stone Arrow Heads, 613 

 Storms of December 28, 1879, 503 ; Storm-Centres in the 



United States, 503 

 Strange Arithmetic, 46S 



rl.ir, Slight Shock of Eirthquake at, 188 

 Strassburg Observatory, a Standard Clock at the, 20; Meteor 



at, 48 

 Stratified Rocks, the Structure and Origin of, II. C. Sorby, 



F.R.S., 431 

 Subject-Index, Astronomical, J. L. E. Dreyer, 154 ; F. D. 



B.-own, 10; Consul Layard, 525 

 Sudan and Sahara, Dr. Gustav Nachtigal, 198 



.rape, the Manufacture of, 20 

 Suguira (S.), Prehistoric Man in Japan, 371 

 Suicide in Scorpions, Dr. R. F. Hutchinson, 226 ; F. Gdlrnan, 



275, 302 

 Sulphuric Acid, Manu r acture of, in Japan, 20 



Sumatra, Exploration of, 332 



Sunlight on Plants, Effects of Uninterrupted, 311 



Sunshine, Chas. Coppock, 445 



Sunshine Cycles, Prof. Pia2zi Smyth, 248 ; E. Douglas Archi- 

 bald, 393 



Sunshine, Recording, David Winstanley, 214 



Sun-Spots : in Earnest, Prof. A. Winnecke, 10 ; M. Janssen's 

 Observations on, 162 ; and the Rainfall of Paris, C. Mel- 

 drum, F.R.S., 166 ; Henry Bedford on, 276 ; Edward 

 Parfitt on, 324 ; H. F. Blanford on the Barometric See-Saw 

 between Rus-ia and India in the Sun-Spot Cycle, 477 



Surrey, Notes on the Flora of, A. Bennett, 116 



Swallow, the Stone in the Nest of the, Dr. P. P. C. Hoek, 494 ; 

 H. E. Harting, 590 



Swan (Joseph W.), Edison's New Lamp, 202 



Swedish North-East Passage Expedition, 37, 57, 326 



Sweden, Prof. Nordenskjbld on the History of Natural Science 

 in. 5i8. 539. 563 



Swift (Prof. Lewis), the Intra-Mercurial Planet Question, 299 



Switzerland, Earthquakes in, 163, 239 ; the Study of Earth- 

 quakes in, 351 



Sydney, International Meteorological Conference at, 382 



Sylviculture, Results of a Recent Experiment in, M. Gurnaud 

 on, 330 



Sypniewo, Anthropological Discovery at, by Heir Wilckens 

 216 



Tabulate Corals, Prof. Nicholson's Work on, 490 



Tait (Prof. P. G.) and the Thermal Conductivity of Metals. 



189 ; Clerk Maxwell's Scientific Work, 317 

 Tasmania, Forests of, Rev. J. E. Tenison-Woods, 573 

 Tastes and Sights, Recall of, Dr. A. Ernst, 611 

 Tay Railway Bridge, Destruction of, 214 ; Hon. Ralph Aber- 



cromby, 443, 502 ; Rev. W. Clement Ley, 468 

 Taylor (Alexander), the Climate of England, 131 

 Tchikoleff (M.), "The Electric Light and its Applications to 



Military Purposes," 330 

 Tea, Curious Varieties of, 502 

 Technical Eduction, Prof. Huxley on, 139 

 Technical University Question, 221 



ical Chemistry, "Grundriss der chemisehen Techno- 



logie," Dr. Jul. Post, 55 

 Tehuantepec, Isthmus of, Commencement of the Railway across, 



«&3 



"Telegraph," the W r ord, Dr. W'arren De la Rue, F.R.S., 226 ; 

 Richard B. Prosser, 251 



Telegraph Cables, Guide for the Electric Testing of, Capt. V. 

 Ilus'.iasr, 5S7 



Telegraphic Arrangement for Ships, a New, 20 



Telegraphy, Duplex System of, in Japan, 35S 



Tele-Microphone, a New, 575 



Telephone: Edison's Late>t Transmitter, 22; Amenities be- 

 tween Telephone Companies, 47; Telephone Litigation in 

 the United States, 90; the Use of, in Edinburgh, ii<; ; Re- 

 searches on Telephone Vibrations, Prof. Sylvanus P. Thomp- 

 son, iSo; Successful Use of Edison's, 1S9 ; Experiments in 

 the Use of, 264; and the Post Office, W. H. Preece, 349 ; 

 and the Resistance of Liquids, 309; Prof. W. F. Barrett on 

 the Lud-S peaking, 483 ; Telephonic Exchange in the United 

 St. ites, 495 



TAephott or Diaphote, 576- 



Temesvar Earthquake, Details of, 163 



Temperature of the Air at Various I.eveD, L. Hajnis, 176 



are, the Influence of, on Tuning-F'orks, Ilerr Kayser 

 on, 243 



Temperature and Atmosphere, Charts of, 265 



Temperature of Space and its Bearing on Terrestrial Physics, 

 James Croll, 521 



Temperature of the Soil during Winter, 523 



Temps, Suggestion of the Meteorological Editor of, 162 



Tenez, Earthquake a:, 547 



Tenison-Wo. ds (Rev. J. E.), Forests of Tasmania, 573 



Tennant (iohn), Colour-Blindne-s, 132 

 •/, Consul Calvert on, 116 



Terrestrial Physics, the Temperature of Space and its Bearing 

 on, James Croll, 521 



Tertiary Quartzites of the Ardenne=, 164 



Tertiaries, English, Classification of the, 448 



Tes in and Italy, the Pelagic Fauna of the Lakes of, 525 



