544 



GENERAL INDEX. 



[48 



Spectrum, solar, measurement of wave- 

 lengths in ultra red, v, 230. 



wave-lengths in the invisible, Lang- 

 ley, vii, 169; xxx, 480. 



see also Comet, Nebula and Sun. 

 Spectrum-lines of metallic vapors, re- 

 versal of, ii, 220. 

 Sprague, I., Wild Flowers of America, 



vii, 414 

 Sprengel pump, Rood, ii, 90. 

 Spring, W.. soldering by pressure, i. 



336. 

 Springer, F., genera of Silurian critioids. 

 v, 255. 



Palseocrinoidea, ii, 494; vi, 365. 

 Burlington limestone in New Mexi- 

 co, vii, 97. 

 Squid, see Zoology. 

 Stahl, E.. Compass- plants, iii, 159. 

 Standards of length, American, i, 240. 

 Star Catalogue, Argentine, iv, 302; ix, 79. 

 spectra, bright lines in, Sherman, 

 xxx, 475. 



system 40, o- Eridani, Hall, xxx, 

 403. 

 Stars, double, iii, 334; vii. 244. 

 parallax of, viii, 404; ix, 78. 

 photography of, ii, 75. 

 Strasburger, Das Botanische Practicum, 



viii, 474. 

 Steam-Engine, Proportions of, Marks, 



vii, 321. 

 Steel, condition of carbon in, vi, 405. 

 hardening of, iv, 287. 

 magnetism and hardness of, vi, 320. 

 Steenstrup, K. J. V., Glacier and Glacier- 

 ice of Greenland, vii, 241 . 

 Stephenson, J. A. D., Emeralds from 



North Carolina, xxx, 82. 

 Stereoscope, Stevens, ii, 358, 443; iii, 226. 

 Stevens, E. K., chemical contributions, vi, 



142. 

 Stevens, W. LeConte, the stereoscope, ii, 

 358, 443. 

 reversible stereoscope, iii, 226. 

 physiological optics, iii, 290, 346; 

 iv, 241, 331. 



organ-pipe sonometer, iii, 479. 

 Backhouse's physiological optics, vi, 

 399. 



optical projection of acoustic curves, 

 ix, 234. 

 Stevenson, J. J., river-channels, filled and 

 re-eroded, i, 155. 



Laramie group of Southern New 

 Mexico, ii, 370. 



coal-field near Canon City, Colora- 

 do, iii, 152. 



metamorphism, ix, 414. 

 Geological Examinations, Col. and 

 N. Mexico, iv, 149. 



Stewart, B., cyclonic storms and mag- 

 netic disturbances, xxx, 241. 

 Sun-spot Areas, ix, 76. 

 Stockivell. J. K, Theory of the Moon's 

 motion, ii, 415. 



Hill's supplement to Delaunay, ix, 

 160. 

 Stokes, A. C, fresh water infusoria, viii, 



38. 158; ix, 313. 

 Stone, G. H., karnes of Maine, ii, 487. 

 glacial erosion in Maine, iii, 242. 

 kame rivers of Maine, viii. 152. 

 drift scratches of Maine, xxx, 146. 

 Stone, O., Annals of Mathematics, vii, 



80. 

 Storer, F. H., shell- and rock-boring mol- 

 lusks, viii, 58. 



obituary of R. A. Smith, viii. 79. 

 food of mice, ix, 75. 

 Storms, tropical, Loomis, i, 1. 

 Streams, deflection of, by earth's rota- 

 tion, Gilbert, vii, 427 ; Baines, viii, 

 434. 

 Streets, T. H., earthquakes, Japan, v, 

 ' 361. 



Stresses caused by continents and moun- 

 tains, Darwin, ii, 317; iv, 256. 

 Stur, D., Beitrage zur Kenntniss der 



Flora der Yorwelt, xxx, 80. 

 Suess, E., Das Antlitz der Erde, vii, 151; 



ix, 418. 

 Sugar analysis, the spectro-polariscope 

 in, iv, 469. 



manual of, Tucker, ii, 398. 

 Sulphates, see Octosulphates. 

 Sulph-hydrates, color reaction of, i, 397. 

 Sulphides, production of, by pressure, vi, 



238. 

 Sulphur, boiling point of, vi, 145. 

 oxychloride, new, iii, 484. 

 phosphorscent flame of, v, 307. 

 sensitiveness of, to light, xxx, 313. 

 Sun and artificial lights, v, 149. 

 constitution of, Hastings, i, 33. 

 eclipse observations, i, 334; iv, 63; 

 viii, 477. 



electric potential of, vi, 406. 

 heat and light of, Langley, v, 169. 

 heat of, hi, 487. 



absorption of, by earth's at- 

 mosphere, ix, 258. 



infra-red spectrum of, v, 230; viii, 

 391, 459. 



oxygen lines in spectrum, telluric, 

 vi, 477. 



parallax of, i, 491 ; ii, 375 ; iii, 161. 

 photographing corona of, v, 126; 

 vii, 27 ; ix, 336. 



radiation from, v, 149. 

 Siemens's theory of the. iv. 311 ; v, 

 78, 148, 230;.vi, 67, 146. 



) 



