Hydromagnesite of Hoboken, _Wachtmeister_, analysis of, xviii, 167.
Hydrometers, opinion on, _R. Hare_, xi, 115.
Hydrophobia, remarks on, ii, 359; iv, 385; v, 177; xvii, 204. ----, singular case of, xvii, 205. ----, account of cases of deaths by, xxiii, 143. ----, cured, x, 385. ----, ----, by means of mercurial ointment, xix, 204. ----, ----, by Huaco, an Indian remedy, _W. R. Johnson_, xxiv, 279.
Hydrostatic balance, xix, 185. ----, press, xix, 185.
Hydrous anthophyllite of N. York, _T. Thomson_, xix, 359.
Hygrometer, Daniell's, remarks on, _E. Loomis_, xlvii, 19; xlix, 277. ----, portable, _A. A. Hayes_, xvii, 351.^f
Hygrometric Register at Western Reserve College, _E. Loomis_, Sept.-Nov. 1838, xxxvi, 166; --1838-1840, xli, 315; --1841-44 xlix, 271. ---- ----, at Hudson, Ohio, compared with those at Greenwich, _E. Loomis_, xlix, 276. ---- observations, mean of, at Malvern, in Worcestershire, xxxviii, 102. ---- ----, at Matanzas, _A. Mallory_, xxxi, 287. ---- ----, at New Orleans, _Barton_, xxxi, 400. ----, see farther under _Meteorology_.
Hygrometry, a method of experimenting in, x, 387.
Hyperbola, method of describing, _R. G. Hazard_, xxi, 314.^f
Hypersthene of N. York, analysis of, _L. C. Beck_, xlvi, 35. ----, in Massachusetts, iv, 55.
Ice, artificial preparation of, xviii, 145. ----, evaporation of, xvi, 390. ----, formation of, in still water, iii, 179. ----, ----, at the bottom of rivers, _H. W. Sheffey_, xxxvi, 186. ----, ----, ibid, _T. Stratton_, xl, 407. ----, ----, sparks given out during, xxvi, 178. ---- in a well, xxxvi, 184. ---- of the sea, characters of, and remarks on, v, 131. ----, Greenland, i, 101. ---- of the Alps, _J. D. Forbes_, xlvi, 173; --veined structure and motion consequence of its viscous condition, xlvi, 174, 175.
Icebergs, remarks on, v, 131. ----, formation of, _C. Wilkes_, xlvii, 114. ----, _J. P. Couthouy_, xliii, 154. ----, character of, and facts concerning, _J. L. Hayes_, xlv, 316. ---- and currents of the North Atlantic, _W. C. Redfield_, xlviii, 373.^f ---- in low latitudes, xxii, 200. ----, theory of drift, see _Drift_.
Ice houses, natural, iv, 174. ---- ----, ----, in Salisbury, Ct., viii, 254. ---- ----, ----, near Williamstown, Mass., iv, 331; v, 398. ---- ----, ----, of St. Ouen, xii, 184.