---- of Hudson river, xx, 150.
----, Chinese method of hatching, viii, 381.
----, preserved by sugar, viii, 391.
----, fall of, from the atmosphere in India, _M. Prinsep_, xxxii, 199.
----, the limits of their occurrence in high latitudes, vi, 383.
----, removal from salt to fresh water, xl, 405.
----, see farther under _Zoology_.
----, fossil, remarks on, _R. I. Murchison_, xxxiv, 46.
----, ----, of England and Scotland, xxviii, 75.
----, ----, American, _W. C. Redfield_, xli, 24.
----, ----, ----, identified from fossil teeth, _L. Agassiz_,
xxviii, 276.
----, ----, in the Connecticut valley, _E. Hitchccock_, vi, 76.^f
----, ----, ----, at Sunderland, Mass., _E. Hitchcock_, iii, 222, 365.
----, ----, ----, at Middletown, _D. L. H._, xxxiv, 198.
----, ----, ----, at Southbury, xxvii, 354.
----, ----, in New Jersey, _W. C. Redfield_, xxxvi, 186; xliv, 134^f;
xlv, 314.
----, ----, ----, and Connecticut, identical, _W. C. Redfield_,
xxxvi, 186.
----, ----, ----, in red sandstone, _Prof. Gale_, xxxv, 192.
----, ----, in Pennsylvania, at Blossburg, Holoptychus nobilissimus,
xlii, 233.
----, ----, in Virginia, _W. C. Redfield_, xxxiv, 201.
----, ----, see farther under _Zoology_.
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.
Flour, potato, used in making bread, xvi, 391.
----, detection of, in wheat, xvii, 173.
---- from leguminous fruits, vii, 189.
Flowers, double, produced by depriving flowers of their anthers,
_E. T. Leitner_, xxiii, 45.
_Floyd, J._, hurricane near Calcutta, of April, 1838, xxxvi, 71.
Fluidity of the earth's centre, _L. Cordier_, xv, 109, 117.
----, ----, ----, _Fourier_, xxxii, 1.
Fluids, compression of, xxi, 381.
----, revolving motion in, xix, 391.
----, resistance of, _L. R. Gibbes_, xxvii, 135.
----, ----, _A. Bourne_, xxviii, 231.
----, resistance of, _E. W. Blake_, xxix, 274; xxx, 359.
----, ----, _Russell_, xxix, 351.
----, ----, _G. W. Keely_, xxviii, 318^f; xxx, 164; xxxi, 111.
----, upward forces of, _E. C. Genet_, xi, 110, 339^f; xii, 94, 310;
xiii, 377.
----, ---- ----, _T. P. Jones_, in reply to _E. C. Genet_, xiii, 79.
Fluor-spar, of Canada, viii, 71.
----, of Connecticut, ii, 141; v, 254; vi, 212.
----, of Indiana, (Shawneetown,) i, 52; ii, 176; iii, 243, 367.
----, of Massachusetts, i, 136; iv, 50; v, 405, 407; vii, 54.
----, of New Hampshire, xviii, 133, 291; xxxiv, 117.
----, of New Jersey, v, 246.
----, of New York, iii, 235, 367; xxviii, 176.
----, of Pennsylvania, x, 221; xiv, 5.
----, of Rhode Island, viii, 231; ix, 46.
----, of Tennessee, iv, 51.
----, of Vermont, iv, 43, 188; v, 272; vii, 59.
----, of Virginia, iii, 243; iv, 277.
----, of Sicily, viii, 205.
----, chlorophane variety in Connecticut, ii, 141; v, 254; vi, 212.
----, new phenomenon of color in, xxxv, 295.
Fluoric acid in mica, ii, 376.
---- ----, its application to etching glass, vi, 354.^f
---- ---- and fluates, xiv, 387.
Fluoride of iodine, _H. B. Leeson_, xlix, 205.
Fluorine in bones, notice of investigations regarding, xlvii, 419.
---- ----, _J. L. Smith_, xlvii, 131.
---- ----, source of, _J. L. Smith_, xlviii, 99.
---- in recent bones, _C. Daubeny_, xlviii, 186.
Fluxions, a theory of, _E. Wright_, xiv, 330^f; xv, 196; xvi, 53.^f
----, solution of a problem in, _T. Strong_, xvi, 283; xvii, 69, 329;
xviii, 67. (See _Forces_, next page.)
Fluxional ratio, application of, _E. Wright_, xxiv, 298^f; xxv, 93.^f
Flying in the air, _De Chabrier's_ views on, xix, 395.
Fogs, remarks on, _W. C. Redfield_, xxxiii, 54.
----, on the formation of, _W. M. Carpenter_, xliv, 40.
----, polar, xiv, 378.
Food for sheep, different kinds of, xxiii, 393.
_Foot, L._, on Indian summers, xxx, 8.
----, notices in geology and mineralogy, iv, 35.
Footprints, American, _E. Hitchcock_ on, in Connecticut valley,
xxix, 307^f; xxxi, 174; xli, 165; xlvii, 113, 292^f, 390;
xlviii, 61.
----, ----, ----, general table of, xxxii, 174.
----, ----, ----, general review of, with descriptions of species,
xlvii, 113, 304.^f
----, ----, ----, miscellaneous remarks upon, xlviii, 61.
----, ----, ----, reply to _J. Deane_, xlvii, 390.
----, ----, _J. Deane_ on, in the Connecticut valley, xlv, 178;
xlvi, 73^f; xlvii, 381; xlviii, 158^f; xlix, 79^f, 213.^f
----, ----, ----, discovery of, xlvii, 381.
----, ----, ----, at Turner's falls, Mass., xlvi, 73.^f
----, ----, ----, batrachian, in the Connecticut river sandstone,
xlix, 79^f, 213.^f
----, ----, ----, reply of, to _E. Hitchcock_, xlvii, 399.
----, ----, _C. Lyell_ on, in the Connecticut valley, xlv, 394.
----, ----, _W. C. Redfield_, notice of fossil, at Middletown, Ct.,
xxxiii, 201.
----, ----, ----, in new red sandstone of New Jersey, xliv, 134.
----, ----, _anon._, in sandstone at Middletown, Ct., xxxi, 165.
----, ----, _A. T. King_ on, in Westmoreland Co., Pa.,
xlviii, 217, 343^f; xlix, 216.^f
----, ----, _H. R. Schoolcraft_, on human, in limestone near St. Louis,
v, 223.^f
----, ----, _anon._, remarks on ibid, xxxiii, 398.
----, ----, _D. D. Owen_, ibid, xliii, 14.^f
----, ----, _W. A. Adams_, ibid, xliv, 200.
----, foreign, in England, in Cheshire, (Cheirotherium,) xxxvi, 397;
xliv, 370.
----, ----, ----, near Liverpool, xxxv, 307.
----, ----, ----, near Shrewsbury, xxxviii, 127.
----, ----, ----, of Cheirotherium, at the Storeton quarries,
xxxvi, 394; xxxvii, 223.
----, ----, in Germany, at Hildburghausen, xxx, 191.
----, ----, in Saxony, _B. Cotta_, xxxviii, 255.^f
----, ----, in Scotland, xiv, 394; xv, 84.
----, remark on localities, xxxi, 164.
----, bearing of the discovery of Dinornis on, xlviii, 199.
Foraminifera in the green sand of New Jersey, xli, 213.
_Forbes, J. D._, absorption of light by the atmosphere, xlvi, 200.
----, on radiant heat, xl, 313.
----, polarization of heat, and on the claims of discovery, xl, 317.
----, Bakerian lecture, notice of, xlvi, 200.
----, Travels in the Alps, notice of, xlvi, 172.
Forces, central, of bodies revolving about fixed axes, _J. Martin_,
xxxix, 262.^f
----, ----, _T. Strong_, xvi, 283; xvii, 69, 329; xviii, 67; xix, 46;
xx, 65, 291; xxi, 66, 334; xxii, 132, 342; xxiv, 40.
----, composition and resolution of, _T. Strong_, xxviii, 85.
----, parallelogram of, _T. Strong_, xxvi, 304; xxix, 345.
----, ----, _A. C. Twining_, xlvi, 324.^f
----, condition of equilibrium between living and dead, xlvii, 241.^f
Forgery, a mode of preventing, _J. Atwater_ and _S. S. Jocelyn_,
xv, 398.
_Forman, J._, salt formation of Salina and elsewhere, New York,
xix, 141.
Formic acid, artificial, vii, 197.
---- ----, on the production of, xix, 374.
---- ----, ----, _M. Döbereiner_, xxviii, 126.
---- ----, ----, _Göbel's_ observations on, xxviii, 127.
---- ----, utility of, and theory of its formation, _J. P. Emmet_,
xxxii, 140.
_Forry, S._, on the climate of the U. States, and general distribution
of heat over the globe, xlvii, 18^f, 221.
----, notice of a work on the climate of the U. States, by, xliv, 193.
_Forshey, C. G._, Indian mounds and relics near Natchez, xl, 376.
----, ---- ---- in Louisiana, xlix, 38.^f
----, on the meteors of April, 1841, xlii, 397.
Forts around Boston, _J. Finch_, viii, 338.
Fort Lawrence, account of, _S. P. Hildreth_, xxxi, 57.
---- Macintosh, notice of, xxxi, 19.
---- Taylor, xxxv, 52.
---- Winnebago, geology of region about, _D. Ruggles_, xxx, 1.^f
Fortifications, ancient Indian, in Missouri, iii, 37.
----, ---- ----, _S. Taylor_, xliv, 35.^f
----, ---- ----, see farther under _Mounds_.
Fossils, means of copying by a galvanic deposit, xlii, 327.
----, use of, in geology, _A. Brongniart_, viii, 213.
----, observations, on ibid, _J. E. Doornik_, xv, 90.
Fossil fish, see _Fish_ and also under _Zoology_.
---- footprints, see _Footprints_.
---- vertebral remains in Connecticut valley sandstone, _E. Hitchcock_,
xxix, 330.
---- trilobites, see under _Trilobites_.
---- rainmarks, see _Rainmarks_.
---- human bones in Upper Saxony, v, 171.
---- ---- ---- in Guadaloupe, skull, xxxii, 361.
---- ---- ---- in South America, xliv, 277.
Fossils, no freshwater species, in the Medina sandstone, xlii, 230.
----, American, geographical distribution of, in the United States,
_J. Hall_, xlv, 157.
----, ----, remarks on ibid, _H. D. Rogers_, _D. Houghton_, xlv, 160.
----, ----, some species of, _T. Say_, i, 381; ii, 34.
----, ----, Polythalamia, _J. W. Bailey_, xli, 400^f; xlv, 313;
xlviii, 340.^f
----, ----, in Alabama, tertiary, _I. Lea_, xxv, 419.
----, ----, ----, ----, _H. C. Lea_, xl, 92.^f
----, ----, in Canada, in caves, ix, 354.
----, ----, in Connecticut, bones in new red sandstone, ii, 146;
iii, 247; vi, 43.
----, ----, in Connecticut valley, shells, &c., vi, 76^f, 80.^f
----, ----, in Georgia, silicified by thermal waters, xxv, 165.
----, ----, ----, mammals, Brunswick canal, _R. Harlan_, xliii, 141.^f
----, ----, ----, bones, _C. U. Shepard_, xxv, 164.
----, ----, in Kentucky, Big Bone Lick, bones, xviii, 139.
----, ----, ----, report on ibid, by Messrs. _Cooper_, _Smith_ and
_DeKay_, xx, 370.
----, ----, in Louisiana, tooth, _W. M. Carpenter_, xlii, 390.^f
----, ----, in Maryland tertiary, list of, _I. Lea_, xxv, 422.
----, ----, in Michigan, on Lake Huron, iii, 270^f, 271.^f
----, ----, Mississippi, bones near the river, _R. Harlan_, xiv, 186.
----, ----, in New Jersey, general remarks on, vi, 240.
----, ----, ----, cretaceous. (See _Cretaceous_, on following page.)
----, ----, ----, corals, xlvii, 213.
----, ----, in N. York, in review of N. Y. geological reports,
xlvii, 354^f; xlviii, 296.^f
----, ----, ----, on distribution of, xlvi, 143; xlvii, 117.
----, ----, ----, in Kaatskill Mts., ii, 13.
----, ----, ----, at Corlear's hook, ii, 371.
----, ----, in North Carolina, marl pits, _H. B. Croom_, xxvii, 168.
----, ----, ----, bones, from Lenoir Co., xl, 405.
----, ----, in Nova Scotia, in iron ore, xv, 201.
----, ----, in Ohio, and Ohio valley, _S. P. Hildreth_, xxix, 1.^f
----, ----, ----, microscopic from marl slate near Cincinnati,
_J. Hall_, xlviii, 292.
----, ----, in Oregon, elephant bones and mylodon, _H. C. Perkins_,
xlii, 136.^f
----, ----, in Virginia, infusorial, _J. W. Bailey_, xlv, 313.
----, ----, ----, polythalamia, _J. W. Bailey_, xlv, 313.
----, ----, ----, in crystalline limestone, xxvi, 222.
----, ----, Upper Mississippi, polythalamia, _J. W. Bailey_, xli, 400.^f
----, ----, near the mouth of the Mississippi, bones, _R. Harlan_,
xiv, 186.
----, ----, Upper Missouri, bones, _J. N. Nicollet_, xli, 181.
----, ----, South, human bones, xliv, 277.
----, ----, in Cuba and New Grenada, supposed to be oolitic, _I. Lea_,
xl, 41.
----, ----, in Peru, on San Lorenzo, xxxviii, 201.
----, ----, in Patagonia, Megatherium, &c., _C. Darwin_, xxxiii, 105.
----, ----, ----, Taxodon, &c., _R. Owen_, xxxiii, 208; xxxv, 196.
----, foreign, in caves, in England, Plymouth, xxxiii, 106.
----, ----, ----, at Kirkdale, and other places, _W. Buckland_,
viii, 158, 317, 319.
----, ----, ----, in Denbigshire, xxxi, 341.
----, ----, ----, in Mendip Hills, xxxv, 304.
----, ----, ----, in France, xxi, 56; xxiii, 388.
----, ----, ----, in Germany, viii, 319, 321.
----, ----, ----, in New Holland, xx, 380.
----, ----, in Britain, marsupial of the Stonesfield slate, xxvii, 412;
xxxvii, 228.
----, ----, ----, microscopic corallines and minute shells in white
chalk,_Lonsdale_, xxxiii, 111.
----, ----, ----, Sussex, number of, xxiii, 171.
----, ----, ----, vertebrated animals of the crag of Norfolk and
Suffolk, xxxi, 339.
----, ----, ----, shells, &c., of Cornwall, _C. W. Peach_, xlii, 327.
----, ----, at Cape of Good Hope, xlix, 213.
----, ----, in France, bones, stags' horns, vi, 199.
----, ----, ----, bones in eastern part, xiv, 203.
----, ----, ----, bones from Argenton, xx, 382.
----, ----, Himalaya Mts., quadrupeds of, xxxiii, 103.
----, ----, in Saxony, human bones, v, 171.
----, see for species under _Zoology_.
----, cretaceous, of U. States, _S. G. Morton_, xvii, 274;
xviii, 243, 249^f; xxiii, 288^f; xxiv, 128^f; xlviii, 265^f, 267;
--notice of _S. G. Morton's_ synopsis of, xxvii, 377.
----, ----, ----, in New Jersey, foraminifera, xli, 213.
----, coal strata, Wilkesbarre, Pennsylvania, ix, 165.
----, ---- ---- of Ohio valley, _S. P. Hildreth_, xxix, 1.^f
----, ---- ---- ----, Mariner's Mill, xxxi, 28.^f
----, ---- ----, _H. Witham_, xviii, 110.^f
----, ---- ----, in England, iii, 389; xxxiii, 270.
----, oolitic, remarks on, xxxiii, 107.
----, transition or Silurian, species characteristic of, _T. A. Conrad_,
xxxv, 246.
----, ----, ibid, general nature of, xxxvi, 12.
----, ----, Ludlow rocks, xxx, 48.
----, in the tertiary of the Atlantic coast, _T. A. Conrad_, xxiii, 339.
----, ---- ---- ---- enumeration of, _T. A. Conrad_, xxviii, 109.
----, ----, of Alabama, list of, _I. Lea_, xxv, 419.
----, ----, ----, _H. C. Lea_, xl, 92.^f
----, ----, of Maryland, list of, _I. Lea_, xxv, 422.
Fossil fruits of Zamia, _G. A. Mantell_, xlv, 401.
---- plants, of coal regions of Wilkesbarre, Pa., ix, 165.
---- ----, ---- ---- of Ohio valley, _S. P. Hildreth_, xxix, 1.^f
---- ----, ----, in Ohio, at Mariner's Mill, xxxi, 28.^f
---- ----, ----, in England, iii, 389.
---- ----, in new red sandstone of England, remarks on, xxxiii, 270.
---- ----, below the coal in England, xxxiii, 87.
---- ----, _A. Brongniart_ on, iv, 266.^f
---- ----, analysis of _Ad. Brongniart's_ work on, vii, 178.
---- ----, _H. R. Göppert's_ views on the lapidification of,
xxxiii, 109.
---- wood or trees, silicification of, xxxiii, 108.
---- ----, ----, ibid, _J. D. Dana_, xlviii, 83.
---- ----, in Connecticut, near Southbury, a trunk of a tree, xiv, 228.
---- ----, in England and France, _A. Brongniart_, iv, 269.^f
---- ----, ----, Craigleith quarry trees, xxviii, 390.
---- ----, at Granton, near Edinburgh, xxxvii, 363.
---- ----, in Indiana, palm trees, _D. D. Owen_, xlv, 336.
---- ----, ----, trees with axe marks, _J. T. Plummer_, xliv, 303.
---- ----, in Louisiana, trees with axe marks, _W. M. Carpenter_,
xxxvi, 118.^f
---- ----, Michigan, tree near lake, iv, 285.
---- ----, in New York, at Chittenango, calcareous tree, v, 251;
xviii, 354.
---- ----, in N. Carolina, v, 261.
---- ----, ----, tree, siliceous, vii, 249.
---- ----, in Nova Scotia, xxx, 340.^f
---- ----, in Nova Scotia, upright trees, xlv, 353.
---- ----, in Ohio, _S. Gazlay_, xxv, 104.
---- ----, ----, trees near Gallipolis, _S. P. Hildreth_, xii, 205.
---- ----, in Russia, vi, 398.
---- ----, in Scotland, near Glasgow, a tree, iii, 382.
---- ----, in Texas, silicified, xxxvii, 215.
---- ----, ----, part silicified and part bituminized, xxxvii, 216.
---- ----, in Virginia, i, 216.
---- ----, in West Indies, i, 56; _S. Hovey_, xxxv, 79.
---- ----, _W. M. Carpenter_ on, recently bituminized, xxxvi, 118.^f
---- ----, _Nicoll's_ sections, xxviii, 74.
---- ----, _H. Witham's_ sections and investigations, xxv, 108;
xxvii, 415.
---- forest near Glasgow, xxix, 352.
_Foster, A._, notice of the falls of Tockoa and Tallulah, in Georgia,
xiv, 209.
_Foster, J. W._, fossil mastodon, Crawford Co., Ohio, xxxvi, 189.^f
_Foster, W._, easy method of filling a long syphon, xxviii, 268.
----, on the culture of the potato in France, xxvii, 176.
Fountains, origin of, x, 394.
_Fourier_, temperature of the terrestrial globe and planetary spaces,
xxxii, 1.
_Fowler, S._, minerals of Warwick, N. Y., ix, 242.
_Fox, R. W._, questions on mineral veins, xxxiii, 135.
----, on the electro-magnetic properties of metalliferous veins,
xx, 136.
----, on the changes in minerals by galvanism, xxxi, 373.
_Fox, C._, some notice of British naturalists, xxxvi, 217.
----, notice of some American birds, xxix, 291.
France, botanical fêtes, ix, 154.
----, fires in, few, xxv, 291.
----, mortality of infants, xix, 192.
----, phthisis in, 1828, xix, 193.
----, population of, xv, 397.
----, scenery in some parts of, x, 167.
Franconia iron works, viii, 180.
Franklin, B., original letters of, iv, 357; v, 157.
Franklinite, ii, 323; v, 41, (shot ore,) 242, 400.
_Fraser, John_, botanical labors of, _A. Gray_, xlii, 9.
Fresco painting, means of detaching, iv, 384.
Fredonia gas works, xvii, 398.
Freestone of Sugar Loaf mountain, Maryland, xxvii, 21.
Freezing mixture, _Boutigny's_, xxx, 168.
---- ----, xii, 195.
---- point, influenced by pressure, _L. C. Beck_, xlv, 49.
---- water, effect from, in a Leyden jar, viii, 374.
---- ----, by the aid of sulphuric acid, apparatus for, _R. Hare_,
xxvii, 132.^f
_Frodsham, W. J._, on the vibration of pendulums with different
suspending springs, xxxvii, 278.
----, elected a member of the Royal Society, xxxvi, 195.
Frogs, introduction of, into Ireland, xxviii, 398.
----, in rocks, remarks on, _D. Thomas_, xix, 167.
Fromont garden, account of, xx, 83.
Frozen wells, xxxvi, 184.
Fruit, method of preserving without sugar, xv, 381.
----, fossil, of Zamia, &c., _G. A. Mantell_, xlv, 401.
---- trees, to destroy worms attacking, xxvii, 197.
---- ----, propagation of, xxvi, 183.
---- ----, time of flowering and other memoranda for different seasons,
at Marietta, Ohio, see _Floral Calendar_ and _Meteorological
Register_.
Fucoids and other marine plants, _Ad. Brongniart_, ix, 375.
---- in Indiana, _J. T. Plummer_, xliv, 290.^f
---- in rocks of western N. York, xxxvi, 46.
---- in Pennsylvania, xx, 415; xxvii, 347.
Fucoides Harlani, xxxvi, 46; xlviii, 299.^f
---- bilobata, xlviii, 307.^f
---- demissa, xlvii, 360.^f
Fuego, Tierra del, rush of, xviii, 189.
Fuel, _E. North_ on, xi, 66.
----, amount of, consumed in New York city, xvi, 360.
----, economy of, _W. R. Johnson_, xxiii, 318.^f
----, of coal tar and water, _C. Daubeny_, xxviii, 71.
Fulgurites, or lightning tubes in sand, xx, 396.
----, siliceous tubes, Rome, N. Y., _C. E. West_, xlv, 220.
----, near Dresden, remarkable, xlvi, 210.
----, in chalk, cause of, _C. Lyell_, xxxviii, 122.
Fuller's earth in Connecticut, ii, 217.
Fulminating compounds, preparation of, _S. Guthrie_, xxi, 288, 293.
---- gold, ii, 350; xlviii, 142.
---- silver, xviii, 335.
---- ----, of _Berthollet_, xviii, 155.
---- ----, _Mitscherlich's_ mode of preparing, xix, 379.
---- ----, injury to _R. Hare_ from the explosion of, xxii, 185.
---- powders, caution against, i, 168.
---- ----, use of crackers of, xxvi, 187.
---- ----, of cyanogen and calcium, _R. Hare_, xxxvii, 268.
---- ----, new, made with saltpetre, sulphur, &c., xvi, 397.
Fulminic acid, composition of, x, 191.
Fumigation, x, 379.
----, in Sweden, vii, 188.
Functions, relation of _Sturm's_, auxiliary to the roots of an algebraic
equation, _Prof. Sylvester_, xlii, 163.
Functional equation, solution of, _G. R. Perkins_, xlii, 69.
Fungi, composition of, xlix, 393.
Furnace for ventilating sewers, _R. Bulkley_, vii, 177.
----, hot blast, _T. Clark_, xxxi, 180.
----, ---- ----, saving by, xxviii, 71.
----, chimneys of, containing cadmia, xii, 168.
----, ----, containing titanium crystals, xii, 189.
Furrows in rocks, see _Scratches_.
Fur trade and fur-bearing animals, xxv, 311.
Fusibility of mixture of carbonate of potash and carbonate of soda,
xix, 379.
Fusible metal, xxi, 371.
Fusion of charcoal and anthracite, _B. Silliman_, v, 108, 361;
vi, 341, 349, 378; viii, 147; x, 109, 119.
---- ----, _J. Griscom_, v, 364.
---- ----, _R. Hare_, viii, 288; x, 111, 118; xxxviii, 190.
---- ----, _L. Vanuxem_, viii, 292; x, 102.
---- by compound blowpipe, see _Blowpipe_.
Fustic, yellow wood resembling, on the Red river, iii, 44.
_Fyfe, A._, photographic processes, xxxvii, 175.
G.
Galactin, _T. Thomson_, xxxv, 303.
_Gale, L. D._, apparatus for obtaining potassium, xxi, 60.^f
----, on the preparing and preservation of potassium, xix, 205.^f
----, on _T. D. Mitchell's_ mode of preparing carbonic oxide,
xxvii, 129.
Galena, crystallized by galvanism, _Becquerel_, xxviii, 291.
----, localities of, see _Lead ore_.
_Galindo, J._, eruption of the volcano of Cosiguina, xxviii, 332.
Galle's first comet, xxxviii, 378; xl, 207.
---- second, observations on, xl, 40; xl, 207.
---- three, notice of, xl, 207.
Gallic acid, new process for obtaining, xvi, 395.
---- ----, new process for, _E. N. Kent_, xlvi, 78.
---- ----, _Döbereiner's_ method for, xxviii, 358.
---- ----, _Pelouze_, xxviii, 125.