Fishes, notice of _L. Agassiz's_ works on, xxviii, 193; xxxiv, 46, 212; xxxix, 390; xlv, 211. ----, abstract of _Agassiz's_ work on fossil, xxx, 33. ----, notice of W. Yarrell's British, xxxvii, 167. Fish skins, new mode of preserving for museums, xxxvi, 196. _Fisher, A. M._, on musical temperament, i, 9^f, 176.^f ----, on improvements in the construction of the printing press, and its theory, iii, 311.^f ----, on maxima and minima of two variable quantities, v, 82. ----, review of Enfield's Philosophy, iii, 125. ----, obituary of, v, 367. _Fisher, Lieut. Col._, discourse by, at Schaffhausen, ix, 368. Fissures, capillary action of, viii, 377. ----, of the ground by frost, in Deerfield, Mass., _E. Hitchcock_, iii, 286.^f ----, see farther, _Dike_. Five, the most favorite number of nature, xvi, 172. Flame, effect of vapor on, _J. F. Dana_, i, 401. ----, theory of, xiii, 179. ---- of lamp, curious effect of a current of air on, xxxii, 88.^f Flax, the milkweed a substitute for, xxvii, 384. Flexure of rocks caused by earthquake undulations, _H. D._ and _W. B. Rogers_, xliv, 361; xlv, 345; xlvii, 276. Flies, shower of, xxii, 375. _Flint_, on earthquakes in the Mississippi, xv, 366. Floating Islands, _A. Pettengill_, xii, 122. Flœrken, on the genus, _C. S. Rafinesque_, i, 373. Flood in the valley of the Ohio, Feb., 1832, xxiv, 133. Flora Cestrica, _W. Darlington_, notice of, xii, 177. ---- Græca, _Sibthorp_ and _Smith_, announced, i, 435. ---- Lusitanica, _Link_ and _Hoffmansegg_, i, 435. ---- Neapolitana, _Tenore_, announced, i, 435. Floral calendar, Massachusetts, at Deerfield, _D. Cooley_, ii, 254. ---- ----, ----, ----, _S. W. Williams_, i, 359. ---- ----, ----, at Plainfield, _J. Porter_, i, 254; iii, 273. ---- ----, Ohio, at Marietta, S. _P. Hildreth_, for 1829, xviii, 368; --for 1840, xl, 347; --for 1842, xliv, 348; --for 1843, xlvi, 278; --for 1844, xlviii, 289; see farther, _Mr. Hildreth's_ meteorological registers for other years, for various miscellaneous notices. ---- ----, in Pennsylvania, _C. S. Rafinesque_, i, 77. ---- ----, in New York, Herkimer Co., for 1826, 1827, _A. W. Bowen_, xvi, 48. Floridas, agriculture, scenery, geology, &c. of, _J. Pierce_, ix, 119. ----, shell rock of, ix, 123. ----, East, account of, _H. Whiting_, xxxv, 47. ----, ----, alligators of, xxxv, 52. ----, ----, climate, xxxv, 63. ----, ----, coral shores, xxxv, 60. ----, ----, everglades, xxxv, 53. ----, ----, forests with the gray moss, xxxv, 50. ----, ----, Fort Taylor, xxxv, 52. ----, ----, lagoons of the coast, xxxv, 54. ----, ----, mangroves, xxxv, 55. ----, ----, productions of, xxxv, 56. ----, ----, potato of, xxxv, 60. ----, ----, quarries of St. Augustine, xxxv, 61. ----, ----, savannahs, xxxv, 52. ----, ----, soil, xxxv, 57. ----, ----, St. John's river, xxxv, 48. ----, ----, sulphur springs, xxxv, 51.