Hessian fly, some account of, _J. E. Muse_, xxii, 71. ----, observations on, _M. H. Morris_, xl, 381. ----, account of, _E. C. Herrick_, xli, 153. Heterosite, analysis of, xix, 371. Heulandite of Paterson and Bound Brook, N.J., _L. C. Beck_, xliv, 59.^f ----, locality in New Jersey, xliv, 59. ----, ---- in Nova Scotia, xxx, 345, 349. ----, Beaumontite and Lincolnite identical with, _F. Alger_, xlvi, 233.^f _Heuvel, J. C. vanden_, on the honey bees of America, iii, 79. _Hewitson, W._, notice of a work on Oology, by, xxxvii, 166. _Hibbert, S._, on the fresh water limestone of Burdie House, near Edinburgh, xxviii, 365. Hieroglyphical investigations, _T. Young_, xxii, 245. Highlands of New York and New Jersey, geology and mineralogy of, v. 26. _Hildreth, S. P._, on the Cicada Septemdecem, or seventeen year locust, xviii, 47.^f ----, meteorological register and calendar, with various memoranda, for 1828, at Marietta, Ohio, xvi, 44. ----, ibid, for 1829, xviii, 368. ----, ibid, for 1830, xx, 126. ----, ibid, for 1831, xxii, 109. ----, ibid, for 1832, xxiv, 132. ----, ibid, for 1833, xxvi, 84. ----, ibid, for 1834, xxviii, 160. ----, ibid, for 1835, xxx, 56. ----, ibid, for 1836, xxxii, 95. ----, ibid, for 1837, xxxiv, 132. ----, ibid, for 1838, xxxvi, 78. ----, ibid, for 1839, xxxviii, 273. ----, ibid, for 1840, xl, 345. ----, ibid, for 1841, xlii, 344. ----, ibid, for 1842, xliv, 347. ----, ibid, for 1843, xlvi, 277. ----, ibid, for 1844, xlviii, 287. ----, Ohio, notes on, x, 152, 319; xi, 231. ----, ----, ten days in, xxv, 217. ----, ----, miscellaneous observations, on a tour to the falls of the Cuyahoga, in 1835, xxxi, 1.^f ----, ----, miscellaneous notices of rocks and minerals, xvi, 154. ----, ----, flight of pigeons, xxiv, 134. ----, ----, climate and productions of Washington Co., xii, 206. ----, ----, disease among shell fish, xxxii, 97. ----, ----, geology of parts of, x, 1. ----, ----, coal of, xiii, 38. ----, ----, fossil trees near Gallipolis, xii, 205. ----, ---- valley, on the coal deposits and accompanying organic remains of, xxix, 1.^f ----, ---- ----, saliferous rock formation, xxiv, 46. ----, ----, shells of some rivers, xiv, 276.^f ----, ----, report on, noticed, xxxii, 190; xxxiv, 196, 350. ----, Pennsylvania, bituminous coal of, xxix, 77. ----, Tennessee, coal measures of, xxix, 141. ----, the West, lias of, xxx, 395. Himalaya Mountains, height of, v, 384; ix, 384. ----, quadruped fossil remains, xxxiii, 103, 211.