----, ----, rotary multiplier, xxxviii, 339.^f
----, _J. Henry_, on the application of, to electro-magnetic
apparatus, xix, 400.^f
----, _J. Locke_, notice of a new, xxvi, 103^f, 378.^f
----, ----, large thermoscopic, xxxiii, 365.
----, _J. P. Emmet's_, new form of, xxvi, 311.
----, _C. G. Page_, on the use of, xxxii, 354.^f
----, ----, astatic or rotary, xxxiii, 376.^f
----, ----, axial, xlix, 136.^f
----, ----, circular, xxxv, 259.^f
----, modified, _W. B._ and _H. D. Rogers_, xxvii, 39.^f
Galvanoscope, a means of detecting the failure of water in steam
boilers by, _C. G. Page_, xxxvi, 141.^f
Galvano-magnetic condenser, v, 394.
---- - ----, apparatus, _J. F. Dana_, vi, 330.^f
---- - ----, ----, Italian, v, 388.
Electro-chemical action, _G. D. Botto_, xxiv, 197; xxix, 369.
---- - ----, odor, _ozone_ the cause of, _Schönbein_, xli, 43.
Electro-dynamic induction of coils, _J. B. Zabriskie_, xxxii, 308.^f
---- - ----, ----, various experiments in, and principles deduced,
_J. Henry_, xxxviii, 170, 209.^f
---- - ----, ----, observations on, _J. Henry_, xli, 117.^f
---- - ----, ----, two kinds of, _J. Henry_, xli, 129.^f
---- - ----, ----, theoretical considerations, _J. Henry_, xli, 135.^f
Electro-magnet, _Henry's_ large, xix, 408.^f
---- - ----, made for the Laboratory of Yale College, xx, 200.
---- - ----, a variety of, proposed, _J. Humbert_, xxxviii, 205.
---- - ----, _Mr. Ganby's_, xxix, 354.
---- - ----, _C. G. Page's_, xxxv, 253.^f
---- - ----, see farther under _Electro-magnetic apparatus_.
Electro-magnetic apparatus, _J. H. Abbot_, xl, 104.^f
---- - ---- ----, _P. Barlow_, v, 396.^f
---- - ---- ----, _A. W. Campbell's_ engine, xxxv, 343.
---- - ---- ----, _E. M. Clarke_, (magneto-electric) xxxiii, 213^f;
--electrepeter, xxxiii, 224.^f
---- - ---- ----, ----, modes of experimenting with, in decomposing
water, xxxiii, 217.^f
---- - ---- ----, ----, mode of giving shocks, xxxiii, 216.^f
---- - ---- ----, ----, mode of scintillating iron wire, xxxiii, 219.^f
---- - ---- ----, ----, mode of adjusting the intensity armature,
xxxiii, 218.^f
---- - ---- ----, ----, rotation by magnetic electricity, xxxiii, 221.^f
---- - ---- ----, ----, mode of igniting charcoal, xxxiii, 222.^f
---- - ---- ----, _T. Davenport_, xxxii, Append. after 216; xxxiii, 193.
---- - ---- ----, ----, rotary, xxxii, 216^f, App., and 399.
---- - ---- ----, _T. Edmonson_, modification of Ampère's rotating,
xxvi, 370.^f
---- - ---- ----, ----, rotating armature, xxvi, 205^f; xxxii, 399.
---- - ---- ----, _J. Henry's_ application of a galvanic multiplier,
xix, 400.^f
---- - ---- ----, _J. B. Joslin_, xxi, 86.^f
---- - ---- ----, _J. Locke_, and on magneto-electricity, xxxiv, 125.^f
---- - ---- ----, _B. R. McConnell's_ rotating, xxxiii, 188.
---- - ---- ----, _C. G. Page_, xxxiii, 191^f; xxxiv, 364; xlix, 131.^f
---- - ---- ----, ----, double axial reciprocating engine, xlix, 139.^f
---- - ---- ----, ----, with revolving armature, xxxvi, 350.^f
---- - ---- ----, ----, _C. G. Page_, compound electro-magnet,
xxxv, 253.^f
---- - ---- ----, ----, electrotome, xxxv, 112^f, 253.^f
---- - ---- ----, ----, reciprocating armature engine, xxxv, 263.^f
---- - ---- ----, ----, with vibrating armature, xxxv, 267.^f
---- - ---- ----, ----, circular galvanometers, xxxv, 259^f;--with
double helix for inducing magnetism, xxxv, 261.^f
---- - ---- ----, ----, electrepeter, new form of, xxxiii, 377^f;
xxxv, 112.^f
---- - ---- ----, _W. H. Pepys_, vii, 195.
---- - ---- ----, _M. Pixii_, xxiv, 144, 146^f, 196.
---- - ---- ----, _J. B. Zabriskie_, model of engine, xxxii, 313.^f
---- - ---- ----, ----, rotating, xxxvi, 129.^f
---- - ---- currents, _A. de la Rive_, xxxiv, 6.
---- - ---- disc of _Arago_, xxiv, 143.
---- - ---- induction, see _Electro-dynamic_.
---- - ---- and magneto-electric formula, xxxv, 356.^f
---- - ---- properties of metalliferous veins, _R. W. Fox_, xx, 136.
---- - ---- telegraph, _S. F. B. Morse's_, xxxiii, 185.^f
---- - ---- ----, see farther, _Magneto-electric_.
Electro-magnetism, early experiments in, iii, 383; v, 391.
---- - ----, experiments in, _J. H. Abbot_, xl, 104.^f
---- - ----, _J. P. Emmet's_ discoveries (magneto-electric) in,
xxiv, 78^f; xxvi, 311; xxviii, 331.
---- - ----, ----, on the cause of voltaic currents in, xxvi, 23.^f
---- - ----, _R. Hare's_ experiments, viii, 145.
---- - ----, _R. Hare's_ experiments, in confirmation of _Henry's_,
xx, 143.
---- - ----, _M. Jacobi_ on, as a moving power, xl, 339.
---- - ----, ----, ibid, laws of, xl, 340.
---- - ----, _G. Moll's_ experiments in, xix, 329.
---- - ----, ---- experiments to determine how far galvanic surfaces
could be diminished and retain magnetic power, xxvi, 177.
---- - ----, _C. G. Page's_ experiments on the application of, as a
moving power, xxxiii, 118, 190^f; xxxv, 106.
---- - ----, _M. Pixii's_ experiments in, xxiv, 144, 146^f, 196.
---- - ----, _J. B. Zabriskie_, on the induction of metallic coils,
xxxii, 308.^f
Electrometers, iii, 372.
Electrometer, single leaf, _R. Hare_, vii, 351^f; viii, 99; xxv, 136.^f
Electromotors, _S. Dal Negro_, xxvii, 189.
----, new property of elementary, _S. Dal Negro_, xxv, 193.
Electrography, gilding by, xli, 402.
----, _v. Kobell_ on, xlix, 221.
Electroscope, _R. Hare_, xxv, 136.^f
Electrotome, _C. G. Page_, xxxv, 112^f, 253.^f
Electrotype, account of, _T. Spencer_, xl, 157.^f
Elephant, death of, iv, 393.
---- of Siberia, xxvii, 353.
----, fossil, near Bloomfield, Ohio, xxv, 256.
----, ----, Jackson Co., Ohio, xxxiv, 358^f, 363.^f
----, ---- remains, Irondiquot Creek, xxxii, 377.
---- bones and Mylodon (?) from Oregon, _H. C. Perkins_, xlii, 136.^f
---- ----, from near Beering's Straits, xvi, 382.
---- tooth, from near the shores of Lake Erie, xiv, 31.
Elevation above the ocean of some heights in Ohio, Michigan,
Pennsylvania and New York, _C. Whittlesey_, xlv, 12.
---- ---- ibid in western New York and of Lake Erie, _C. Dewey_,
xxxiii, 122.
---- ---- ---- in Wisconsin, _I. A. Lapham_, xlvi, 258.
Elevation, _Hopkins'_ theoretical views respecting the geological
phenomena of, xxxi, 365.
----, _G. E. Hayes_, on the effects of the ocean in western New York,
during, xxxv, 86.
----, _W. W. Mather_ on causes of, in rise of sedimentary rocks
of United States, xlix, 284.
----, _H. D._ and _W. B. Rogers_, theory of, xliv, 360.
---- of Ceylon, evidence of, vi, 194.
---- of the coast of Chili, xxviii, 236; xxx, 110.
---- ---- ---- and South America, _C. Darwin_, xxxiii, 100.
---- of the banks of the Mississippi, 1811, _F. C. Usher_, xxxi, 294.^f
---- of Sweden, _C. Lyell_, xxviii, 72, 387; xxix, 363.
---- of the Scandinavian coast, _L. Beamish_, xlvii, 184.
---- of Dominica, St. Christopher's, St. Eustatia and Saba,
West Indies, indicated by raised coral reefs, iv, 218.
Elizabeth Islands, vii, 240.^f
Elk of Ireland, iv, 246.
----, fossil bones of, in North Carolina, xxvii, 170.
_Ellet, W. H._, on the compounds of cyanogen, xviii, 329.
Ellipses, mode of drawing, _S. De Witt_, xxiv, 369.^f
----, on the rectification of, _C. Wilder_, xviii, 38.^f
Elliptic motion, _T. Strong_, xxx, 248.
Elm-tree moth, parasite of the eggs of, xxxviii, 385.
----, destruction of the eggs of, by a parasite, _E. C. Herrick_,
xl, 211.
Embalming, remarks on the mode of, xii, 183.
----, _J. N. Gannal's_ new process, xl, 194.
Emerald in Africa, ii, 354.
_Emerson, G. B._, biographical notice of A. P. De Candolle, xlii, 217.
Emery of Saxony, xxiv, 377.
_Emmet, J. P._, on formic acid, xxxii, 140.
----, ammoniacal salts, solvent and oxydating powers of, xviii, 255.
----, iodide of potassium a test for arsenic, xviii, 58.
----, electro-magnetism and thermo-electricity, xxvi, 311.
----, ----, new discoveries in, xxiv, 78.^f
----, ----, cause of currents in, xxvi, 23.^f
----, solidification of raw gypsum, xxiii, 209.
----, a mode of producing sparks and galvanic currents from the
horse-shoe magnet, xxiv, 78.^f
Emmonite, supposed new mineral, _T. Thomson_, xxxi, 171.
_Emmons, E._, birds of spring, time of appearance in Williamstown,
Mass., 1831-33, xxvi, 208.
----, circulation in vegetables, xxvi, 99.
----, granitic veins and beds of Chester, Mass., viii, 250.
----, Grevilleanum serratum, a new species of moss, xi, 183.^f
----, metamorphic changes by artificial heat, in sandstone, xlv, 146.
----, rainmarks in the Potsdam sandstone, xlv, 316.
----, strontianite in the U. States, xxvii, 182.
Enamel for porcelain, v, 189.
Enamelled cast iron vessels in Bohemia, xlix, 400.
Encroachment of the sea, near New York, _W. W. Mather_, xxxvi, 16.
Endogenites, vii, 179.
Enfield's Natural Philosophy, review of, iii, 125.
England, population of, xxiv, 211.
_Engelmann, G._, Braun's monography of N. American Equiseta, with
additions, xlvi, 81.
----, Braun's Charæ of N. America, xlvi, 92.
----, catalogue of a collection of plants in Illinois and Missouri,
xlvi, 94.
----, monograph of the N. American Cuscutineæ, xliii, 333^f; xlv, 73.
----, a mode of cupellation, xlii, 394.
Engine, explosive, of _S. Morey_, account of, xi, 104.
----, steam, see _Steam engine_.
English lexicography, contributions to, _J. W. Gibbs_, xxxiii, 324;
xli, 28, 32; xlv, 96.
Engraving, a mode of enlarging, ii, 342.
----, a mode of biting-in, on steel, x, 194.
----, in _taille douce_, iv, 192.
---- on steel, _Perkins's_ invention, iii, 353.
Epicycloid, on the, _E. F. Johnson_, xxi, 280.^f
Epidemics, in Paris, during past years, xxv, 197.
Epidote of Franconia, N. H., account of, _C. U. Shepard_, xviii, 129.^f
----, crystals from Haddam, Ct., xlvi, 380.^f
----, localities of, in Canada, viii, 62.
----, ----, in N. Carolina, v, 262.
----, ----, in Connecticut, i, 354; ii, 240; vi, 223; viii, 258;
xii, 170; xviii, 361.
----, ----, in Delaware, xiv, 11.
----, ----, Massachusetts, i, 114; iii, 364; vi, 223; vii, 253;
viii, 235; ix, 43.
----, ----, New Hampshire, ii, 241; vi, 245; viii, 235; xviii, 129.
----, ----, in New Jersey, v, 243.
----, ----, in New York, ii, 241; iv, 47; vii, 58; ix, 41.
----, ----, in Pennsylvania, viii, 238; xiv, 6.
----, ----, in Rhode Island, iv, 285; x, 10.
----, ----, in Vermont, vii, 58; xvii, 354.
Epistilbite and Heulandite, identity of, xiii, 185.
Equations, differential of the second order, integration of,
_T. Strong_, xlii, 273.
---- of the fourth degree, on the resolution of, xviii, 276.
---- of the third and fourth degree, method of resolving,
_A. C. Twining_, ix, 86.
Equilibrium between living and dead forces, condition of,
_R. H. Fauntleroy_, xlvii, 241.^f
Equinoxes, precession of, vii, 323^f; viii, 132, 139.^f
Equiseta, N. American, _A. Braun's_ monograph, with additions
by _G. Engelmann_, xlvi, 81.
Equisetum arvense, xlvi, 83.
---- boreale, xlvi, 90.
---- eburneum, xlvi, 84.
---- giganteum, xlvi, 91.
---- hyemale, xlvi, 89.
---- lævigatum, xlvi, 87.
---- limosum, xlvi, 86.
---- palustre, xlvi, 85.
---- pratense, xlvi, 85.
---- robustum, xlvi, 88.
---- scirpoides, xlvi, 91.
---- sylvaticum, xlvi, 84.
---- variegatum, xlvi, 90.
Equivalents, chemical, _Wollaston's_ scale of, xvi, 371.
----, ----, ----, improved, _L. C. Beck_ and _J. Henry_, xiv, 202.
----, ----, circular scale of, _J. Finch_, xviii, 196.
Eremite, a new mineral, _C. U. Shepard_, xxxii, 341.^f
----, crystallographic examination of, _J. D. Dana_, xxxiii, 70.^f
----, identical with monazite, _J. D. Dana_, xlv, 402.^f
Ergot of rye, _W. Tully, M. D._, ii, 45.
----, remarks on, xii, 398.
----, on the origin of, _M. Field_, ix, 359.
Erie canal, tolls on, x, 398.
Erratic blocks, over the northern parts of England, _Prof. Phillips_,
xxxi, 360.
---- ----, ibid, _R. I. Murchison_, xxxi, 375.
---- ---- and glaciers in Switzerland, _Agassiz_, xli, 59, 190.
---- ---- of the North of Germany, xxviii, 389.
---- ----, large, in Invernesshire, vi, 158.
---- ---- and diluvial scratches, in the U. States, xli, 174.
---- ---- in New England, their positions attributed to a retiring
ocean, ix, 28.
---- ---- in Rhode Island, _C. T. Jackson_, xl, 184.
---- ---- in Maine, _C. T. Jackson_, xxxvi, 152.
---- ---- in the Connecticut valley, vi, 85.
---- ---- in western New York, xxxvi, 39.
---- ---- in New York, about the sources of the Hudson and to the
southward, xxxiii, 304, 315.
---- ---- on Long Island, xxxvi, 20.
---- ---- of Labrador feldspar, near Pompton, New Jersey, v, 241.
---- ---- of Ohio, _D._ and _I. A. Lapham_, xxii, 300.
---- ----, in the valley of the Muskingum, xxix, 11.
---- ---- in Illinois, xxxiv, 141.
---- ---- in Indiana, _J. T. Plummer_, xliv, 296^f, 303.
---- ---- of gneiss and granite on the Côteau des Prairies,
_G. Catlin_, xxxviii, 142.
---- ---- of the Canadian lakes and valley of the St. Lawrence,
_C. Lyell_, xlvi, 314.
---- ---- the origin of, remarks on, _P. Dobson_, x, 217.
---- ---- _Murchison's_ citation of _Dobson's_ views on, xliii, 200.
---- ---- transported by ice, in the polar current, _W. C. Redfield_,
xxxii, 351.
---- ---- on the supposed transportation of, _J. E. DeKay_, xiii, 348.
---- ---- buoyancy of, at great depths, xxviii, 111.
---- ---- gravel, &c., remarks on, _Sedgwick_, xxxiii, 287.
---- ---- theory of, _B. Struder_, xxxvi, 325.
---- glacial theory of _Agassiz_, xlii, 352.^f
---- see farther under _Drift_ and _Scratches_.
Erythronium, supposed new metal, xx, 386.
Esophagotomy, iv, 383.
_Espy, J. P._, views on storms, xxxix, 120; xl, 327.
----, ---- ----, notice of, by _A. D. Bache_, xxxv, 280.
----, on the causes of the daily fluctuations of the barometer, xli, 42.
----, meteorological enterprise of, xliv, 212.
Esquimaux Indians, remarks on, xvi, 145.
Essential oils, reaction of, with sulphurous acid, _R. Hare_, xxxi, 281.
Essex county, (N. Y.) mountains of, and the sources of the Hudson,
_W. C. Redfield_, xxxiii, 301.^f
Etching glass with fluor spar, vi, 354.^f
Etna, ascent of, _S. L. Johnson_, xxvi, 1.
----, crater of, xxvi, 7.
----, earthquakes in 1823, ix, 216.
----, observations on, _E. de Beaumont_, xxxi, 168.
----, luminous flames at, xxxi, 169.
----, geological structure of, _F. Ferrara_, viii, 201.
Ether in space, idea of, when introduced, xxxiii, 1.
---- ----, resistance to motion of heavenly bodies, xvii, 389.
---- ----, examination of the theory of, _R. W. Haskins_, xxxiii, 1.
----, boracic, xlviii, 189.
----, chloric, new mode of obtaining, _S. Guthrie_, xxi, 64.
----, hydriodic, _M. Serullas_, xviii, 161.
----, hyponitrous, _R. Hare_, xxxv, 329.
----, nitrous, new process for, _R. Hare_, ii, 326.
----, nitric, process for, _R. Hare_, xxxiii, 241.^f
----, œnanthic, xxxii, 381.
----, perchloric, _C. Hare_ and _M. H. Boyé_, xl, 50, 382; xlii, 63.
----, silicic, xlix, 192.
----, sulpho-cyanic, xvii, 377.
----, sulphuric, on the manufacture of, xxii, 199.
----, sulphurous, _R. Hare_, xxxi, 275.
----, ----, and sulphate of etherine, _R. Hare_, xxxi, 275.
----, vaporization of, vi, 396.
----, action of, on sulphate of indigo, xxiv, 371.
----, odor of wines due to a peculiar, xxxii, 381 (œnanthic ether.)
Ethers of the vegetable acids, method of preparing, xlvii, 197.
----, and benzoic compounds, formulas for, _Wöhler_ and _Liebig_,
xxvi, 285.
Etherine, sulphate of, _R. Hare_, xxxi, 275.
----, sulphate of, on the destructive distillation of, _C. Hare_,
xxxvi, 76.
Ethule, perchlorate of the oxide of, _C. Hare_ and _M. H. Boyé_,
xlii, 63.
Euchlorine, preparation of, vi, 164.
Eudiometer, improved, _R. Hare_, ii, 312^f; x, 67^f; xii, 36^f;
xxxvii, 383.
----, barometer gauge, _R. Hare_, xxxii, 280.^f
----, subsidiary, _R. Hare_, xv, 271.^f
Eudiometry, theory of action of nitrous gas in, _J. F. Dana_, vii, 338.
----, new mode, with nitric oxyd, and apparatus for, _R. Hare_,
xv, 262-271.^f
Eupatorium huaco, xxiv, 279.
Europe, northern, rock formations of, xvii, 16.
----, physical geography of, _G. F. Schouw_, xxi, 127.
----, education in, see _Education_.
Eupyrchroite of Emmons, a phosphate of lime, _L. C. Beck_, xl, 77;
xlvi, 32.
Evaporation, mode of accelerating, ix, 203.
---- by means of bladders, xv, 392.
---- of ice, xvi, 390.
---- of spirits, iii, 376.
Excavations of basins or pot-holes by water, in the Green Mts., Vt.,
vi, 252.
Exhilarating gas, effects of, in two cases, v, 194.
_Exley, T._, specific gravities of nitrogen, oxygen, chlorine, vapors
of carbon, sulphur, arsenic, phosphorus, xxxv, 298.
Exogenites, vii, 179.
Exogyra, see ZOOLOGY, _Mollusca_.
Expansion of solid bodies, instrument for, _W. W. Mather_, xxx, 324.^f
Expedition, exploring, under L. Cass, ii, 178.
----, ----, U. States, under Lieut. Wilkes, U. S. N., officers of,
xxxv, 192.
----, ----, ----, progress of, xxxvi, 195; xxxvii, 189, 398;
xxxviii, 387; xxxix, 193.
----, ----, ----, discoveries of, in the Antarctic regions, xl, 394;
xlix, 150.
----, ----, ----, return of, xliii, 208.
----, ----, ----, course and abstract of results, xliv, 393.
----, ----, ----, account of, xlix, 149.
----, ----, Antarctic, of the Chanticleer, notice of, xviii, 188.
----, ----, British Antarctic, under Ross, proposed, xxxvii, 397;
xlii, 153; sailed, xxxviii, 204.
----, ----, French, to the Antarctic regions, xxxix, 201.
Explorations, polar, account of, xvi, 124.
----, ----, French, of Capt. Freycenet, iv, 391.
----, ----, ----, of Capt. D'Urville, xxxiii, 206.
----, ----, ----, ibid, to Antarctic regions, xxxix, 201.
----, ----, ----, of the Bonite, xxxiv, 219.
Exploring expedition, see _Expedition_.
Explosion, singular, iv, 400.
---- of hydrogen and oxygen, with remarks on Hemming's safety tube,
_J. W. Webster_, xxxvii, 104.
----, from the action of nitric acid on phosphorus, xvi, 366.
----, submarine, ii, 95.
Explosive engine, by _S. Morey_, xi, 104.
Eye, mode of accommodation of, to different distances, _W. C. Wallace_,
xxvii, 216.^f
----, mode of exhibiting the blood vessels of, xxi, 166.
----, muscle attached to the lens of, _W. C. Wallace_, xxxv, 291;
--remarks on, _D. Brewster_, xxxv, 291.
----, cause of _muscæ volitantes_ in, _D. Brewster_, xl, 333.
----, remarks on the retina, _W. C. Wallace_, xxviii, 278.
----, sensibility of the retina, explanation of facts in natural magic,
xxxiii, 258.
----, on cataract or disease of, _D. Brewster_, xxxi, 368.
---- of fishes, discovery of a muscle in, _W. C. Wallace_, xxvi, 394.
---- of the Halibut, dissection of, _W. C. Wallace_, xxvi, 393.^f
---- of the shark, vitreous humor of, _J. Herschel_, xxxv, 293.
---- of the streaked bass, dissection of, _W. C. Wallace_,
xxvii, 216.^f
---- of different birds and reptiles, sclerotic bones of, xxxiii, 289.
---- infirmaries in U. States, ix, 399.
F.
Fac similes of writing taken by means of fusible metal, v, 186.
Fair at Leipsic, iv, 392; vii, 381.
----, in Russia, iv, 392.
Falls of the Cuyahoga, xxxi, 45.^f
----, on the Genesee river, xviii, 209.^f
----, Niagara and its vicinity, xi, 213.^f
----, ----, on the retrograde movement of, _H. D. Rogers_,
xxvii, 326.^f
----, the Tockoa and Tallulah, in Georgia, notice of, _A. Foster_,
xiv, 209.
----, on White River, Green Mountains, Vt., vi, 252.
_Faraday, M._, deflagrator, improved, xxxii, 170.
----, electric induction, in reply to _R. Hare_, xxxix, 108; xlii, 291.
----, ---- ----, reply to, of _R. Hare_, xli, 1.
----, gases, condensation of, vii, 352.
----, ----, liquefaction and solidification of, xlix, 373.
----, views of, on the nature of atoms, objected to, _R. Hare_,
xlviii, 247.
----, vaporization, limits to, xxi, 151.
_Farey, J._, on musical intervals, ii, 65.
Fasciculite, _E. Hitchcock_, vi, 226.^f
Fata Morgana at Gibraltar, xxix, 215.^f
_Fauntleroy, R. H._, condition of equilibrium between living
and dead forces, xlvii, 241.^f
_Faust, E. D._, on the detection of adulterations of various substances,
xix, 70.
Favosites, see ZOOLOGY, _Radiata_.
Feathers, to restore damaged, xxi, 372.
_Featherstonhaugh, G. W._, geological report on part of the country west
of the Mississippi, notice of, xxviii, 379; xxxii, 185.
Febrifuge, new, xxiv, 375.
Fedia radiata, iv, 57.
---- umbilicata, xlii, 50.
Feed for cattle, xxii, 202.
---- ----, of beets, xxii, 201.
Fees for admission to various foreign societies, xx, 165.
Feldspar from Bytown, L. C., analysis of, _T. Thomson_, xxxi, 173.
----, and serpentine, containing titanium, xii, 187.
----, artificial, xxviii, 396.
----, localities of, in Canada, viii, 65.
----, ----, in Connecticut, i, 353; vi, 221; vii, 253.
----, ----, in Delaware, ix, 246.
----, ----, in Massachusetts, i, 113; vii, 251, 252; xxxv, 192.
----, ----, in New Hampshire, xvii, 355.
----, ----, in New Jersey, v, 246.
----, ----, in New York, iv, 37, 47; xix, 227; xxv, 348.
----, ----, in Pennsylvania, x, 220; xiv, 13.
----, green, in Massachusetts, vii, 251, 252; xxxv, 192.
----, iridescent, in Pennsylvania, xiv, 13.
_Fellenberg's, M. de_, colony of little Robinsons, xiii, 165.
Fence, thorn, x, 167.
_Fenn, H. N._, on the manufacture of glass, xvi, 112.^f
Fermentation, acetic, process for hastening, xxii, 195.
Ferns, on the vascular system of, _J. W. Bailey_, xxxv, 113.^f
---- and mosses of the United States, synoptical table of,
_L. C. Beck_, xv, 287.
----, see _Botany_.
Ferro-cyanate (per), of iron, or prussian blue, xviii, 332.
---- ----, see _Prussian blue_.
Ferro-cyanate of potash, xviii, 331.
Ferro-cyanic acid, xviii, 330.
Fetid odor of limestones, cause of, _L. C. Beck_, xlv, 335.
_Feuchtwanger, L._, remarks on arsenic, xix, 339.^f
----, on the mode of making vinegar, xxxi, 272.^f
Fevers, on remittent and intermittent, _J. McCulloch_, xviii, 338.
Fibrine, albumen and caseine, _Scheerer_ on the isomerism of animal,
with vegetable, xliii, 402.
----, butyric acid from, xlviii, 186.
Fibrolite, in Delaware, x, 224.
Ficoidites scabrosus, xxxi, 31.^f
_Field, M._, on the origin of ergot, ix, 359.
----, meteorological registers, xii, 364; xvi, 288; xviii, 366;
xx, 261^f; xxii, 298; xxiv, 361.
----, profile mountain, in N. H., xiv, 64.^f
Figures of crystals, on the drawing of, _J. D. Dana_, xxxiii, 30.^f
Filicites, generic characters of, vii, 181.
Filter, _Dumont's_, and prepared charcoal, xxiii, 346.^f
Filtration, xxviii, 150.
_Finch, J._, atomic theory, remarks on, xiv, 24.
----, chemical equivalents, circular scale of, xviii, 196.
----, celtic antiquities of America, vii, 149.
----, forts about Boston, viii, 338.
----, geology of Pennsylvania, Easton, viii, 236.^f
----, ---- ----, vicinity of Westchester, xiv, 15.
----, ---- New York, St. Lawrence Co., xix, 220.
----, ---- ----, tertiary formations of the borders of the Hudson,
x, 227.
----, sandstone, new or variegated, of the U. States, x, 209.^f
----, U. States tertiary formations, vii, 31.
----, physical geography, influence of, on the boundaries of nations,
xiv, 18; xvi, 99.
Finland, comforts of traveling in, iii, 378.
Fire, Chinese, on the composition of, _J. Cutbush_, vii, 118.
----, Greek, _J. Cutbush_ on, vi, 302.
---- in chimneys, extinguishment of, by sulphur, xix, 186.
----, on protection from, or securing houses against, xxv, 290;
xxvi, 286.
----, whirlwinds produced by, xxxvi, 50.
---- arms, manufacture of, by _E. Whitney_, xxi, 237.
Firebricks, made at Bennington, Vt., for the iron furnace, xxxii, 195;
xxxiii, 202.
Fire damp, chemical examination of, _E. Turner_, xxxvii, 201.
Firemen, preservation of, against fire by asbestos, xviii, 177;
xx, 96.^f
Firestones, used in glass manufactories, notice of, x, 19.
----, localities of, in the U. States, x, 20.
----, ----, in Rhode Island, viii, 232; x, 20; xl, 184.