INDEX. 



487 



Mountain series, 32, 34, 243 ; Silurian Soda. See Carbonate of Soda and Sea- 



of Syracuse, N. Y., 310; in tertiary salt. 



sediments, 303; an indigenous rock, Soils, the chemistry of, 22, 95, 226-228. 



249, 250, 285, 317; of aqueous origin,! 



123, 297, 300, 318; regarded as an 



eruptive rock, 242, 247, 249, 316, 336 ; 



its supposed pseudomorphous origin, 



287, 291, 316-319, 325; its supposed 



conversion into carbonate of lime, 



325; Dana on, 819, 320; Delesse on, 



316, 317; Credner on, 304; Favre 



on, 348. 



Serpulites, a phosphatic shell, 312. 

 Shaler, N. S., on volcanoes, 60; on An- 



ticosti group, 416. 

 Shales, bituminous. See Pyroschists. 



Shawangunk conglomerate, 416. 



Sherbrooke, Nova Scotia, granite vein 

 of, 198. 



Silica, sources of, 2, 10, 150; how re- 

 moved from waters, 22 ; relations to 

 organic life, 22, 312; deposits of, 89, 

 204, 234. See Quartz. 



Silica and silicates in waters, 12, 21, 25, 

 84, 95, 105. 



Silicate of lime from waters, 149, 151 - 

 153; its action on magnesian salts, 



122. 



Silicate of magnesia from waters. See 

 Magnesian silicates. 



Silicification of fossils, 89, 286. 



Sidell on the precipitation of clays, 10. 



Silver in sea-water, its separation from, 

 and concentration, 231, 235. 



Sillery formation, 256, 401, 411. 



Silurian system, 352, 365, 379-381, 423, 

 425 ; Primordial, 369, 378, 423 ; Low- 

 er, 355-357, 363, 364, 378, 418, 420; 

 Middle, 417, 418, 423; Upper, 355, 

 415, 418, 424 ; nomenclature in Amer- 

 ica, 419, 420. 



Siluro-Cambrian, 423, 424. 



Sismonda, geology of the Alps, 334, 348. 



Skaraborg, geology of, 366. 



Skeleton crystals, 201, 211. 



Skiddaw, geology of, 273, 284, 412. 



Skye, Isle of, norites of, 34, 281. 



Smith, J. Lawrence, on silicate of lime 

 from waters, 151. 



Solution chemically considered, 429, 



448; its relation to pressure, see 



Pressure. 



lonstadt on sea-water, 237. 

 Sorby, H. C., on liquids in crystals, 65, 



205 ; on the relations of pressure to 



solution, 65, 204. 

 Spectroscopic studies of celestial bodies, 



35, 222. 



Spinel, supposed alteration of, 289. 

 Springs, mineral. See Chemistry of 



Natural Waters, contents of the 



various parts, pages 93, 116, 135. 

 Stallo, J. B., on chemical theory, 450, 



455. 

 Staurolite-bearing rocks, 28, 272, 282, 



331, 408. 



St. Albaus, Vermont, geology of, 264. 

 St. Catherine, Ontario, water of, 116. 

 St. Davids, Wales, geology of, 373, 375, 



382. 

 St. John, New Brunswick, geology of, 



406, 407. 

 St. Lawrence basin, mineral waters of, 



153, 158; river, water of, 136, 150. 

 St. Leon, Quebec, water of, 123. 

 St. Ours, Quebec, water of, 136. 

 Stearine, its equivalent weight, 456. 

 Steatite, 32, 243, 247, 249, 250, 269, 272, 



297, 300, 318, 330, 331, 334, 342; its 



supposed eruptive origin, 249; its 



supposed pseudomorphic origin, 319, 



320, 322, 325. 



Ste. Genevieve, Quebec, water of, 143. 

 Stratigraphical breaks, 262, 376, 377, 



413, 414. 



phism, 313, 324. 



Streng on igneous rocks, 3. 



Stromatopora, Dawson on, 411. 



Strontia in waters, 141; sulphate of, 

 87, 117. 



Sulphates, their constitution, 467; de- 

 composition of, by heat, 108, 112; 

 reduction of, 87, 99, 145, 163, 230; 

 absence of, from some saline waters, 

 117, 144, 159. See Gypsum, also 

 Alumina and Magnesia, sulphates of. 



Smyth, Warrington, on pseudomor- Sulphur, as a triple molecule, 464 ; na- 



tive, origin of, 23, 87, 99, 111. 



