_Schaeffer, G. C._, on the meteors of August, 1837, and November, 1832, xxxiii, 133. ----, meteor of August, 1840, xxxix, 332. _Schaeffer, F. C._, peat of Dutchess Co., N. Y., i, 139. ----, localities of minerals, i, 236. Schænus effusus, northern limit of, _H. B. Croom_, xxvi, 315. _Scheerer_, on aventurine feldspar, xlix, 394. ----, on polycrase and malacrone, xlix, 394. _Schenck_, transit of Mercury, May, 1832, xlix, 148. _Schimpfer_, theory of boulders quoted and questioned, xxxvi, 331, 332. Schistose structure a result of crystallization, _J. D. Dana_, xlv, 105. ---- ---- in some volcanic rocks, _J. D. Dana_, xlv, 105. _Schlechtendal, D. F. L. von_, Linnæa of, noticed, xxxix, 178; xl, 392. _Schley, G._, on steam as a conductor of electricity, xxvi, 206. _Schlossberger, F._, on the composition of fungi, xlix, 393. _Schlotheim, E. F. von_, notice of, xxxvii, 128. _Schmidt, G._, notice of, iii, 79. _Schnederman_, on a salt of platinum, xliv, 274. Schoharie, mineralogy of, xxviii, 172^f; 381. _Schönbein, C. F._, on ozone, xlix, 195. ----, on the deoxidation of the ferridcyanide of potassium, and the salts of the peroxide of iron, xlix, 203. ----, on ozone, a supposed cause of odor attending electrical discharges, xli, 44. Schools for the poor in Italy, iii, 375. ----, Lancasterian, in France, iv, 199, 389. ----, see farther under _Education_. _Schoolcraft, H. R._, native copper of Lake Superior, with a figure, iii, 201. ----, copper mine on Lake Superior, vii, 43. ----, lead mines of Missouri, with geological and miscellaneous notices, iii, 59. ----, on a petrified tree, near Lake Michigan, iv, 285. ----, memoir on a fossil tree, notices of, by John Adams, James Madison and Thomas Jefferson, v, 23, 25. ----, on the prints of human feet in limestone, v, 223^f; xliii, 22. ----, localities of minerals, vii, 46. ----, notice of a discourse by, xx, 166. ----, letter on the tide of Lake Superior, xx, 213. ----, address on the North American Indians, xxiv, 190. ----, action of the North American Lakes, xliv, 368. Schorl, see _Tourmaline_. _Schröder, J. F._, address by, noticed, xxi, 181. _Schweigger-Seidel_, general electric formula, xxxv, 356.^f Schweinfurt green, vii, 386. _Schweinitz, L. D. de_, monograph of the genus Viola, v, 48. ----, list of the rarer plants near Easton, Penn., viii, 267. ----, obituary notice of, xxvi, 218. _Schweitzer, G._, analysis of seawater near Brighton, xxxviii, 12. Science, list of men of, who have held offices under government, xx, 172. ---- in the South, xxi, 188. ---- in the West, xxi, 187. Scientific publications, recent, in the United Stales, xxvi, 208, 397; xxvii, 395. ---- Journals in Great Britain, xxviii, 365. Sciuri, see under _Zoology_. Sclerotic bones of the eyes of birds and reptiles, xxxiii, 289.