47] 



VOLUMES XXI-XXX. 



543 



Silliman, B., iron ore of Mexico, iv, 375. 



obituary of, is, 85. 

 Silver hyponitrite, vii, 141. 



new compounds of, vii, 142. 

 salts and coloring matters, Lea, ix, 

 53. 

 Sjogren, H., chondrodite and humite, v, 



311. 

 Smee battery, HallocJc, v, 268. 

 Smith, 0. P., Meteorology of Madeira, v, 



88. 

 Smith, E. A., geology of Florida, i, 292. 

 phosphatic deposits in the Cretace- 

 ous of Alabama, vii, 492. 



on a paper of 0. Meyer, six, 270. 

 Smith, E. G., chrysotile from Shipton, 



Canada, ix. 32. 

 Smith, J., Dictionary of Popular Names 



of Plants, iv, 476. 

 Smith, J. L., hiddenite, i, 128. 



chromite in meteoric iron, i, 461. 

 magnetic properties of nickeliferous 

 iron, iii, 232. 



determination of phosphorus in iron, 

 iii, 316. 



concretions in meteoric irons, v, 

 417. 



collection of minerals, ii, 166. 

 obituary of, vi, 414. 

 Researches in Mineralogy and Chem- 

 istry, ix, 262. 

 Smith, S. I., Prudden's Histology, ii, 

 414! 



Crustacea of the Albatross dredg- 

 ings, viii, 53. 



zoological notices, viii. 76. 

 notice of Whitman's Methods of 

 Microscopical Research, xxx, 403. 

 Publications on Crustacea, ii, 412. 

 Decapoda of the Blake Expedition, 

 iv, 235. 

 Smithson, J., Life of, i, 166. 

 Smithsonian Inst. Repts.. ii, 165; iv, 78. 

 Smock, J. C, thickness of the continen- 

 tal glacier, v. 339. 

 Snake, supposed lignjfied, from Brazil, 



v, 79. 

 Snow, effect of pressure on, iii, 434. 

 Sodium hyposulphite, composition of, i, 



397. 

 Soil analyses, Hilgard, ii, 183. 

 Solar system, evolution of, i, 402. 



see Spectrum and Sun. 

 Soldering by compression, i, 336. 

 Solids, cold from reactions of. ii, 206. 

 Solms-Laubach, Corallina, ii, 325. 

 Solutions, constitution of, iv, 141 . 



freezing point of saline, ix, 399. 

 Solvents, law of solidification of, viii, 



146. 

 Sonometer, organ-pipe, Stevens, iii, 479. 



Sophorin, iii, 413. 



Soroy, H. C, presidential address, i, 152. 

 Sound from intermittent radiant heat, 

 i, 323, 324, 402, 463 ; ii, 87. 

 binaural perception of, iv, 144. 

 intensity of, ii, 219; vi, 177, 496. 

 supposed polarization of, i, 501. 

 velocity of, in air, vii, 143. 

 in wood, iii, 415. 

 Sound-shadows in water, LeConte, hi, 



27. 

 Sound-waves in organ pipes, ii, 316. 

 Soundings, see Ocean. 

 South Carolina, meteoric iron of, i, 117. 

 Spain, earthquakes in, Eockvjood, ix, 282. 

 Spencer, J. W., preglacial outlet of Lake 

 Erie, ii, 151, 486. 



terraces and beaches about Lake 

 Ontario, iv, 409. 

 Specific gravity, separation of minerals 



by, ii, 80; vi, 411. 

 Spectra, absorption, by water, i, 500; vii, 

 485'. 



infra-red, v, 230; vi, 321. 

 homologous, vi, 401. 

 of metallic vapors, viii, 391, 457, 459. 

 stellar, bright lines in, Sherman, 

 xxx, 475. 



see also Spectrum and Sun. 

 Spectro-bolometer, see Bolometer. 

 Spectro-polariscope in sugar analysis, iv, 



469. 

 Spectroscope of great dispersion, v, 469. 

 Littrow, form of, iv, 60. 

 rainband, Bell, xxx, 347. 

 see Prisms. 

 Spectroscopes, efficiency of, ii, 397. 

 Spectroscopic notes, Young, vi, 333. 



observations with monochromatic 

 light, iii, 322. 

 Spectrum, absorption, of colorless liquids, 

 i, 500 ; vii, 485. 



analysis, use of induction spark in, 

 ix, 167. 



diffraction bands, Moreland, ix, 5. 

 measurements, influence of temper- 

 ature on, ix. 251. 

 of arsenic, ii, 214. 



of compound of carbon with hydro- 

 gen and nitrogen, i, 74. 



of Nova Andromeda;, Sherman, 

 xxx, 378. 



of ozone, iv, 56. 

 of pernitric oxide, iv, 58. 

 phosphorograph of. Draper, i, 171. 

 phosphorography of the infra-red, 

 v, 230. 



photometry of, ii, 2 1 9. 



solar, at high altitudes, iv. 393. 



atmospheric lines in the, v, 78. 

 b line in, i, 323, 



