----, remarks on the antiquities of, and the efforts to preserve,
xxxvi, 192.
----, Grecian Archipelago, iron, rutile, serpentine and heavy spar
in, xxxi, 175.
----, model farm in, xix, 193.
Grecian University at Corfu, ii, 348.
_Green, H._, vegetable organography and physiology, xxxviii, 49.
_Green, Jacob_, air lamp, inflammable, ii, 330.^f
----, blowpipe, new, iv, 164.^f
----, crystallization instantaneous, instance of, iii, 93.
----, ---- of snow, ii, 337.^f
----, petrified tree near Chitteningo, New York, v, 251.
----, rattlesnake bones, curious fact concerning, iii, 85.
----, trilobites, notice of a monograph on, xxiii, 395.
----, ----, new, xxv, 334.
----, ----, structure of, &c., xxxvii, 25.^f
----, ----, genus Paradoxides of _Brongniart_, and on the genus
Triarthrus, xxxiii, 341.
----, ----, Calymene Rowii, xxxiii, 406.
----, ----, Calymene bufo, note on, xxxviii, 410.
----, ----, Asaphas diurus, xxxvii, 40.
_Green, James_, barometer and other instruments, construction of,
xxvii, 292.
Green, Schweinfurt's, preparation of, vii, 386.
Green malachite, see _Malachite_.
---- earth in Massachusetts, i, 113.
---- paint, a new, for artists, xxviii, 148.
---- sand in France, viii, 217.
---- ---- in New Jersey, see _Cretaceous_.
Greenland, east coast, formerly inhabited by Europeans, xv, 166.
----, subsidence of the coast of, xxx, 379.
----, rocks and country of, xvii, 14.
----, population of, iii, 384.
----, ice, i, 101.
Greenstone in Western Massachusetts, viii, 9.
---- of Nova Scotia, xiv, 305.
---- of the Connecticut valley, account of, _E. Hitchcock_, vi, 31, 44.
----, junction of with the sandstone, vi, 47.
----, columnar, Connecticut valley, vi, 53.
----, degradation of, vi, 55.
----, dikes of, Connecticut valley, vi, 47, 56.
----, see further under _Trap_.
Greek conjugations, _J. W. Gibbs_, xxxvii, 112.
---- correlatives, _J. W. Gibbs_, xxxiv, 337.
---- fire, _J. Cutbush_ on, vi, 302.
---- verbal roots in English, _J. W. Gibbs_, xlv, 284.
Grevilleanum serratum, xi, 183.^f
Greystone, characters of, xv, 32.
_Griffith, Mary_, on the halo which surrounds all bodies, xxxviii, 22.
Grindstones of Nova Scotia, xv, 148; xxx, 338.
_Griscom, J._, on botanical fêtes in France, ix, 154.
_Griswold, C._, submarine explosion, ii, 94.
_Gronovius, J. F._, letters from, to C. Colden, xliv, 85.
Grooves in rocks, see _Scratches_.
Grotto del Cane, xxiv, 244.
Grove's voltaic battery, xxxviii, 116.
---- ---- ----, experiments with, _S. F. B. Morse_, xlv, 390.^f
---- ---- ----, on the use of carbon in, _B. Silliman, Jr._, xliii, 393;
xliv, 180.^f
Groves of evergreens, their value near gardens, &c., xxii, 158.
Growth of wheat, on the acceleration of, _G. W. Hall_, xxxi, 345.
---- of timber, xxiv, 391.
Guaco, notice of, xxii, 182.
----, medical virtues of, confirmed, _W. R. Johnson_, xxvii, 171.
----, remedy for hydrophobia, _W. R. Johnson_, xxiv, 279.
----, note on, xxiv, 388.
Guadaloupe fossil human skeleton, description of the skull of,
_J. Moultrie_, xxxii, 361.
Guano, remarks on, _J. E. Teschemacher_, xlvi, 203.
----, account and analysis of, xlviii, 181.
----, change in bones in, _R. Warrington_, xlix, 391.
----, xanthic oxide in, xlix, 200.
----, xanthine in, _Unger_, xlix, 391.
_Guillemin, J. B. A._, on the bitterness of vegetables, xxiv, 273.
Gulf of Mexico, accumulation of water in, supposed from the action of
the Gulf Stream, v, 353.
Gulf Stream, cause of, v, 353.
---- ----, existence of, determined by _B. Franklin_, xlvii, 162.
---- ----, supposed connection of, with opposite currents on the coast
of the United States, _W. C. Redfield_, xxxii, 349.
---- ----, extent of, xxxii, 350.
---- ----, ice of the north brought within the dissolving influence of,
on the Newfoundland bank, _W. C. Redfield_, xxxii, 351.
---- ----, loss of vessels in, xx, 158.
---- ----, remarks on, _M. F. Maury_, xlvii, 161.
Gum, composition of, xxii, 350.
---- ammoniacum, xx, 399.
Gun barrels, browning of, xxxiv, 45.
Gunpowder, _A. Ure_ on the composition of, xx, 190.
----, experiments on, _A. Mordecai_, xlix, 180.
----, inflamed underwater, xxii, 354.
----, method of augmenting the force of, _Geo. Gibbs_, i, 87.
----, safe process for manufacturing, _S. Guthrie_, xxi, 292.
_Guthrie, S._, mode of obtaining chloric ether, xxi, 64; xxii, 105.
----, chemical products by, xxi, 92.
----, fulminating preparations, xxi, 288, 293.
----, gunpowder, safe process, xxi, 292.
----, molasses from the potato, xxi, 93.
----, sugar from potato starch, xxi, 284.
----, purification of turpentine, xxi, 291.
----, pure oil of turpentine, xxi, 93.
----, vaporization of mercury in the fumes of nitric ether, xxi, 90.
Gymnasium at New Haven, xiii, 385; xiv, 400.
Gymnastic science in France, x, 176.
Gymnastics in Switzerland, v, 191.
Gypsies, essay on, xxiv, 342.
---- in America, xxvi, 189.
Gypsum, action of, as a manure, xxvi, 181.
----, experiments on the solidification of, _J. P. Emmet_, xxiii, 209.
----, fertilizing properties of, xxii, 350.
----, origin of, _L. Vanuxem_, xii, 92.
----, curved, mammoth cave, Ky., xlii, 206.^f
---- of the basin of mines, Nova Scotia, xv, 146.
----, localities of, in New York, i, 243; iv, 36; v, 39, 40; xvi, 377;
xxxvi, 38.
----, ----, in Maryland, xxvii, 8.
----, ----, in Ohio, iv, 51, 52; v, 39; vii, 48; xvi, 158.
----, ----, in Canada, viii, 71.
----, ----, in Michigan, vii, 47.
----, ----, in Virginia, i, 62; iv, 52.
----, ----, Prince Regent's Inlet, xvii, 10.
----, ----, in Nova Scotia, xiv, 229; xv, 146.
----, ----, in the Hartz, xix, 111.
----, ----, in Sicily, viii, 204.
----, ----, in Africa, iv, 33.
---- and accompanying marine limestones, in Nova Scotia, age and
position of, _C. Lyell_, xlv, 356.
Gyropodium coccineum, ix, 56.^f
H.
Hæmatoxylin, _O. L. Erdman_, xliv, 357.
Hail, formation of, xix, 396.
Hail storms, cause of, in warm weather, _B. Hallowell_, xv, 361.
---- ----, phenomena and causes of, _D. Olmsted_, xviii, 1.^f
---- ----, reply to _A. T. Christie_ on, by _D. Olmsted_, xx, 373.
---- ----, _A. T. Christie's_ views on, xx, 373.
---- ----, _A. Jones_, xxiii, 35.^f
----, ----, remarks on, _W. C. Redfield_, xxxiii, 55.
----, ---- in Louisiana, _W. M. Carpenter_, xxvii, 171.
----, ----, rods a protection against, x, 196.
Hail-rods, in France, x, 196; xii, 398.
---- ----, ----, efficacy of, xiv, 37.
_Haile, A. B._, observations on the magnetic disturbance during an
Aurora, Nov., 1837, xxxiv, 270.
Hailstones, structure of, xxiii, 36.^f
---- at Clermont, France, large, xxxi, 191.
_Haldeman, S. S._, on the Melanians of Lamarck, xli, 21; xlii, 216.
----, notice of the zoological writings of the late _C. S. Rafinesque_,
xlii, 280.
----, species of mollusca common to Europe and America, xlvii, 412.
_Hale, M._, geological notice of Troy, iii, 72.
_Hall, F._, notice of, xlvii, 139.
----, notes on a tour in France, Italy and Elba, xxxii, 74.
----, on some minerals from Palestine, ix, 337.
----, notice of oriental minerals, xxxiii, 249.
----, ores of iron and manganese in Vermont, iii, 57.
----, waterfall, in the Green Mts., and an excavation in the rocks,
vi, 252.
_Hall, James_, on the crinoidea, xlv, 349.
----, fossils of U. States, general remarks on the distribution of,
xlv, 157; xlvii, 117.
----, Paradoxides, species of, xxxiii, 139.^f
----, ripple marks and casts of furrows, xlv, 148.
----, sections at Portage, N. Y., xlv, 329.
----, shells, microscopic, from a marl slate, Cincinnati, xlviii, 292.
_Hall, J._, Western States, general account of geology of, xlii, 51.
_Hall, John_, on the staining of wood, and on medical electricity,
iii, 166.
_Hallowell, B._, on the cause of hail in warm weather, xv, 361.
----, blue color of sky, twinkling of stars, and on the deception as
to the number in view on a clear evening, xv, 360.
Halos, theory of, _E. S. Snell_, xlix, 73.^f
----, lunar, West Point, March 20, 1831, xx, 299.
----, solar, seen in N. York, at Cazenovia, _J. W. Tyler_, xxi, 189.
----, ----, ibid, in Otsego Co., Feb. 1823, xx, 297.
----, ----, ibid, at Kingston, _R. H. Bonnycastle_, xxx, 136.
----, ----, ibid, at West Point, _A. C. Twining_, xxxii, 229.
----, ----, ibid, New Lebanon, _T. Kendall_, vii, 337.^f
----, ----, seen in Kentucky, August, 1825, xi, 325.^f
----, ----, seen in Rhode Island, September, 1816, xi, 328.^f
----, ----, seen in Tennessee, at Jackson, x, 368.^f
Hambato, S. America, account of, xxiv, 382.
_Hamilton, J._, on terrestrial magnetism, xxxvii, 100.
_Hamilton, M._, earthquakes of S. America, xli, 57.
Hammer, new mineralogical, _E. Hitchcock_, vii, 175.^f
_Hansteen's_ journey in Siberia, notice of, xvii, 392.
_Harden, J. M. B._, formula for ascertaining the weight and volume in
a mixture of two bodies, xxxvii, 289.
_Hare, C._, perchloric ether, xl, 50; xlii, 63.
----, on the destructive distillation of the sulphate of etherine,
xxxvi, 77.
----, reaction of sulphuric acid with the essential oil of hemlock,
xxxvii, 246.
_Hare, R._, acids and salts, remarks on the nature of, xxvii, 63, 67.
----, ----, classes of, xxvii, 69.
----, air pump of a new construction, xxxiii, 237.^f
----, alkanet, as a substitute for litmus, v, 348.
----, ammonia, nitrate, on the preparing of pure, v, 348.
----, atoms, on the views of _Faraday_, respecting, xlviii, 247.
----, amphide salts, on the existence of radicals in, xlv, 52, 247.
----, barium, strontium and calcium, extrication of, xxxvii, 267;
xxxviii, 115; xxxix, 362; xl, 293.^f
----, blasting rocks, by galvanic ignition, xxi, 139; xxvi, 352.^f;
xxxviii, 188.
----, blowpipe, improved alcohol, vii, 110.^f
----, ----, hydrostatic, xi, 135.^f
----, ----, strictures on a publication entitled Clark's gas blowpipe,
ii, 281.^f
----, ----, oxy-hydrogen, fusion of a large amount of platina with,
xxxiii, 195; xxxv, 328.
----, boron, process for evolving, xxii, 189; xxiv, 249.^f
----, calorimotor, i, 413.^f; v, 94.
----, ----, for igniting platina in the galvano-ignition apparatus,
xxxii, 284.^f
----, carbon, on the fusion of, in reply to _L. Vanuxem_, viii, 288;
x, 111.
----, ----, experiments on the fusion of, x, 118.
----, ----, ----, remarks on, xxxviii, 190.
----, carbonic acid, apparatus for exhibiting some of the properties
of, xiv, 358.^f
----, carbonic oxide, apparatus for separating from carbonic acid,
xxiv, 252.^f
----, chemical nomenclature, xxvii, 63; xxxii, 259.
----, ibid, in a letter to _Berzelius_, xlix, 249.
----, Chemistry, compendium of, noticed, xx, 95.
----, chlorine, explosive reaction of hydrogen with, under the sun's
rays, xxix, 243.^f
----, ----, apparatus for combustion of metals in, xiv, 354.^f
----, chlorohydric acid, preparation of, from the muriatic acid
of commerce, xxxix, 371.
----, cold, apparatus for producing ebullition by, xxxiii, 248.^f
----, collapse of a reservoir, xxxiii, 242.^f
----, cryophorus, improved, xxxiii, 244.^f
----, cyanogen, analysis of, xv, 271.^f
----, deflagrator, galvanic, iv, 201; v, 94.^f
----, ----, ----, improved forms of, and powers, vii, 347^f; xl, 48.
----, deflagrating carburets, phosphurets, &c., in vacuo, mode of,
xl, 303.^f
----, De Luc's column, on the construction of, xxv, 136.^f
----, on electricity, vii, 103.^f
----, ----, on some inferences from the phenomena of the spark,
in _Thomson's_ work on heat and electricity, xxxii, 278.
----, ----, on the causes of the diversity in the length of sparks
erroneously distinguished by the terms positive and negative,
xxxii, 275.^f
----, electrical brush, xxxii, 277.^f
----, electric induction, and letters to _Faraday_ on, xxxviii, 1;
xli, 1.
----, ---- ----, _M. Faraday_ in reply to, xxxix, 108; xlii, 291.
----, electrical machine, plate, vii, 108^f; (large) xxxii, 272.^f
----, ---- ----, on the error that they must communicate with the earth,
xxiv, 253.
----, electrometer, single leaf, vii, 351^f; viii, 99; xxv, 136.^f
----, ----, modification of the single leaf, xxv, 136.^f
----, electrometer, use of, as an electric discriminator, xxv, 136.
----, electro-magnetic and galvanic experiments, viii, 145.
----, ether, hypo-nitro-acetic, xxxv, 329.
----, ----, nitrous, new process for, ii, 326.^f
----, ----, nitric, process for, xxxiii, 241.^f
----, ----, sulphurous, xxxi, 275.
----, etherine, sulphate of, xxxi, 275.
----, eudiometer, a new, ii, 312^f; x, 67^f; xii, 36^f; xxxvii, 383.
----, ----, barometer gage, xxxii, 280.^f
----, ----, subsidiary, xv, 271.^f
----, eudiometry by means of nitric oxide, xv, 260.^f
----, freezing water by aid of sulphuric acid, apparatus for,
xxvii, 132.^f
----, fulminating powder, consisting of cyanogen and calcium,
process for, xxxvii, 268.
----, ----, silver, injury to, from the explosion of, xxii, 185.
----, galvanic apparatus, new modifications of, iii, 105.^f
----, ----, ignition of gunpowder, xxxvii, 269.
----, galvano-ignition apparatus, xxxii, 282.
----, ----, ibid, see above, under _blasting_.
----, galvanism, new theory of, i, 413.^f
----, ----, series, new, combining the advantages of the trough and
deflagrator, xxxii, 265.^f
----, ----, new rotatory multiplier, xxxviii, 339.^f
----, apparatus for regulating the supply of gas by its absorption,
xiii, 2.^f
----, gases, a mode of obtaining the specific gravity of,
xvi, 293, 295.^f
----, gaseous mixtures, analysis of, xv, 279, 283.
----, gasometers, mode of suspending, iv, 312.^f
----, glass, method of dividing by friction, xiii, 7.^f
----, heat, on the cause of, iv, 142.
----, ----, capacities for, apparatus for illustrating, xiii, 6.^f
----, ----, ----, apparatus for showing an increase of, in air with
relaxed pressure, xiii, 5.^f
----, ----, reply to _D. Olmsted_, on the materiality of, xii, 50, 366;
xiii, 8.
----, liquids, apparatus for transferring or decanting, xxvi, 358.^f
----, hydrometers, xi, 115.
----, hydrostatic blowpipe, xi, 135.^f
----, laboratory of, xix, 26.^f
----, laudanum, xii, 291.
----, light, means of producing, ii, 172.
----, lightning rods, xiii, 322.
----, litrameter, xi, 133.^f
----, meconic acid, mode of obtaining, xii, 293.
----, matter is heavy as demonstrated by _W. Whewell_, reply to,
xiii, 260.
----, nitrogen, apparatus for obtaining, from the atmosphere,
xiv, 356^f; xxviii, 263.^f
----, nitrous oxide, properties of, xvi, 298.
----, ----, ----, method of obtaining, xvi, 295, 297.^f
----, palm-glass, cold produced by, xiii, 4.^f
----, olefiant gas, on the analysis of, xv, 270.
----, opium, mode of detecting minute quantities of, xii, 290.
----, platina, on the fusion of, xxxiii, 195; xxxv, 328.
----, pneumatic cistern, xiv, 200^f; xxxiii, 246.^f
----, potassium, improved process for, xxxviii, 338.
----, phosphorus, combustion of, in nitrous oxide, xxxii, 290.^f
----, prussic acid, apparatus for the evolution of, xxix, 244.^f
----, sassarubrin, a resin, xxxi, 285.
----, silicon, mode of obtaining, xxii, 189; xl, 28.
----, ----, apparatus for evolving from fluo-silicic acid, xxiv, 247.^f
----, silver, nitrate of, preparation of pure, v, 348.
----, on specific gravities, xi, 121.^f
----, storms of the Atlantic coast, v, 352.
----, ----, on Redfield's theory of, xlii, 140; xliii, 122.
----, ----, on Dové's essay on, xliv, 137; xlviii, 220.
----, ----, replies of _W. C. Redfield_ to, xlii, 299; xliii, 250^f;
xliv, 384.
----, ----, or tornado in R. Island, Aug. 1838, and others, xxxviii, 73.
----, ----, tornado and water spout, causes of, xxxii, 153.^f
----, sulphurous acid, reaction of the essential oils with, xxxi, 281.
----, syphons, improved, xxiv, 317.^f
----, valve cock, xxiv, 251.^f
----, volumescope, description of, xv, 275^f; xxviii, 264.^f
----, ----, application of, xv, 278.^f
----, volumeter, xii, 38.^f
----, water, apparatus for decomposition and recomposition of,
xxxviii, 336.^f
----, Woulfe's apparatus, a substitute for, i, 410^f; xiii, 1.^f
_Harlan, R._, Arvicola ferrugineus, x, 285.
----, Batracian reptiles, new, with observations on the larvæ of frogs,
x, 53.
----, bones from near the mouth of the Mississippi, xiv, 186.
----, lizards, orbicular, notice of, xxxi, 383.
----, mammalia, fossil, from the Brunswick canal, Georgia, xliii, 141.^f
----, mouse, new species of, xxxi, 385.
----, Orycterotherium, xlii, 392; xliv, 69.^f
----, Salamandra pennsylvanica, x, 286.
----, tortoise, freshwater, xxxi, 382.^f
----, Medical and Physical Researches of, noticed, xxx, 188.
----, new fossil mammalia of, _R. Owen_ on, xliv, 341.
----, ibid, in reply to R. Owen, xlv, 208.
_Harris, W. S._, utility of lightning conductors on ships, xxi, 347.
----, meteorological observations at Plymouth, xliii, 369.
_Harris, T. W._, North American Sphinges, xxxvi, 282.
----, Report on Insects injurious to vegetation, noticed, xliii, 386.
Hariz, Europe, notices of, _T. G. Clemson_, xix, 105.^f
_Haskins, R. W._, examination of the theory of a resisting medium
in space, xxxiii, 1.
----, Astronomy of, noticed, xli, 389.
_Hassler, F. R._, methods and plans of, in the survey of the coast
of the United States, xvi, 225.
----, repeating theodolite, description of, _C. Wilkes_, U.S.N.,
xvi, 252.^f
Hats, manufacture of, x, 193.
Hawaii, see _Sandwich Islands_.
_Hawkins'_ Saurian remains purchased, xxix, 367.
Hay, siliceous glass from burning, xix, 395; xxiv, 174.
_Hayden, C. B._, analysis of the Scott spring, Va., xliv, 409.
----, on the ice mountain of Hampshire Co., Va., xlv, 78.^f
----, on the rock-salt and salines of the Holston, Va., xliv, 173.
_Hayden, H. H._, Geological Essays of, noticed, iii, 47.
----, on the Bare Hills, near Baltimore, xxiv, 349.^f
----, notices of the geology of the country near Bedford springs,
Pennsylvania, xix, 97.
Haydenite, description of, xlvi, 379.^f
----, analysis, by _B. Silliman, Jr._, xlvi, 380.
_Hayes, A. A._, chlorine, carbon and hydrogen, two new compounds of,
xxii, 141.
----, chromium, combinations of, xiv, 136.
----, columbic acid, investigations on, xlvi, 166.
----, dewpoint, remarks on, xviii, 63.
----, hygrometer, portable, xvii, 351.^f
----, meteoric iron, Alabama, xlviii, 147.
----, microlite and pyrochlore, identity of, xliii, 33; xlvi, 158.
----, tin, action of metallic, on the muriate of, xxxviii, 408.
----, Tarapaca saline minerals, nitrates, iodates, borates,
xxxviii, 410.
_Hayes, G. E._, geology of western New York, with remarks on the causes
of its topographical features, xxxi, 241; xxxv, 86.^f
_Hayes, J. L._, on the geographical distribution and phenomena
of volcanoes, xlvii, 127.
----, influence of icebergs upon drift, xlv, 316, 326.
_Haymond, R._, on remains of Megatherium and Mastodon, xlvi, 294.
_Hazard, R. G._, method of describing a hyperbola, xxi, 314.^f
Heat, absorption of, _Nobili_ and _Melloni_ on, xxiii, 188.
----, ----, apparatus for illustrating, _A. D. Bache_, xxviii, 320.^f
----, animal, vii, 200.
----, ----, influence of the nerves on, x, 390.
----, ----, _Nobili_ and _Melloni's_ experiments on insects, &c.,
xxiii, 185.
---- of different animals, x, 382.
----, capacity of gas for, iv, 372.
----, ---- of air, apparatus for illustrating, _R. Hare_,
xiii, 5^f, 6.^f
----, cause of, _R. Hare_, iv, 142.
----, of combination, law of, _Andrews_, xlvi, 397.
----, conduction of, notice of _Despretz's_ investigations, v, 378.
----, ----, laws of, _Kelland_, xlii, 161.
----, ----, by water, _C. Dewey_, xxviii, 151.
----, connection of, with electricity and magnetism, _J. F. Dana_,
vi, 163.
----, diathermancy of rock salt, _Melloni_, xl, 313.
----, of the earth, iv, 372.
----, ----, at different depths, xxiii, 14; xxxvii, 357.
----, ----, rate of increase downward, _A. De la Rive_ and
_F. Marcet_, xxvii, 397.
----, ----, ibid, _L. Cordier_, xv, 116.
----, ----, detailed analysis of, _L. Cordier's_ essay upon, xv, 109.
----, ----, criticism of Poisson's view, _J. D. Forbes_, xl, 319.
----, ----, _G. Bischof_, xxxvii, 52.
----, ----, _W. Whewell_, xxix, 349.
----, ----, and of space, _Baron Fourier_, xxxii, 1.
----, ----, effects of internal and solar, on the temperature of the
globe, xxxii, 1.
----, ----, in mines, _R. W. Fox_, xxxiv, 46.
----, effect of, on magnetism, _C. Matteucci_, xxii, 361.
----, ---- of long continued, on minerals, experiment to determine,
_W. V. Harcourt_, xxix, 357.
----, ---- of, on some minerals or rocks in New York, _L. C. Beck_,
xlv, 143; xlvi, 333.
----, moon's, xl, 315.
----, _Nobili_ and _Melloni's_ experiments on, xxiii, 185; xl, 313.
----, polarization of, xxviii, 366, 397.
----, polarized, and on his claims to the discovery of, _J. D. Forbes_,
xl, 317.
----, production of, and of light, _J. L. Sullivan_, i, 91.
----, ----, from combustion, x, 382.
----, ----, by compression of glass, xx, 180.
----, ----, by friction, cause of, _J. T. Watson_, viii, 276.
----, ----, by combination with oxygen, different for different
substances, and amount of, xv, 392.
----, radiated, influence of color on, _A. D. Bache_, xxx, 16;
xxxiv, 39.
----, ----, transmission and refraction of, _Melloni_, xxvii, 228;
xl, 313.
----, ---- ----, _J. D. Forbes_, xl, 315; refraction of, xxviii, 366.
----, radiation of, apparatus for illustrating, _A. D. Bache_,
xxviii, 320.^f
----, ----, _Powell's_ report on, noticed, xl, 313.
----, of space, _W. Whewell_, xxix, 349.
----, ----, _Baron Fourier_, xxxii, 1.
----, specific, of gases, some of the laws of, xiii, 394.
----, ----, of certain solids, method of determining and calculating,
_W. R. Johnson_, xxvii, 267.
----, sun's, _W. Whewell_, xxix, 349.
----, general views on, x, 78.
---- at the bottom of the ocean not necessarily diffused by upward
currents, _W. C. Redfield_, xlv, 138.
---- and light, _S. Morey_, ii, 118, 122.
---- and vapor, inquiries respecting, _W. R. Johnson_, xxi, 304.
----, see further under _Meteorology_ and _Temperature_.
Heated waters, an agent in producing metamorphic changes, _J. D. Dana_,
xlv, 104.
Heating houses by furnaces below, some important precautions, xxxiv, 84.
Heavy spar, of Berlin, Ct., analysis of, _G. T. Bowen_, iv, 325.
----, localities of, in Canada, viii, 72.
----, ----, in Carolina, iii, 4; v, 257.
----, ----, in Connecticut, i, 240; ii, 373; iv, 325; v, 40, 42.^f, 254;
vi, 211.
----, ----, in Massachusetts, i, 115; vi, 211.
----, ----, in New Jersey, xxxvi, 103.
----, ----, in New York, i, 237; ii, 173, 368; v, 28; vii, 56;
viii, 249; xxv, 346; xxvii, 364; xxviii, 175.
----, ----, in Tennessee, i, 63.
----, ----, in Virginia, i, 63.
----, ----, in Sicily, viii, 205.
Hebrew words, orthography of, _J. W. Gibbs_, xxiv, 87.
_Heckewelder, John_, labors of, xxxi, 64, 66.
Height, on the measurement of, by boiling water, xxxvii, 19.
----, mean, of the continents above the sea, xlix, 397.
---- of Lake Erie and various places in western New York, _C. Dewey_,
xxxiii, 122.
---- of places in Ohio, Michigan, Pennsylvania and New York,
_C. Whittlesey_, xlv, 12.
---- ---- in Wisconsin, _I. A. Lapham_, xlvi, 258.
Hematite, see _Iron Ore_.
Hemlock, reaction of sulphuric with the essential oil of, xxxvii, 246.
Hemming's safety tube, _J. W. Webster_, xxxvii, 104.
Hemorrhage, remedy for, v, 409.
Hemp, Manilla, account of, xli, 200.^f
_Hemprich_ and _Ehrenberg_, notice of journey by, in Northern Africa,
vii, 195.
_Henry, J._, electro-dynamic induction, xxxviii, 209^f; xli, 117.^f
----, large, xix, 408.^f
----, electro-magnetic experiments, by, xxii, 403.
----, ---- apparatus, application of galvanic multiplier to,
xix, 400.^f
----, ---- ----, remarks in confirmation of, _J. W. Webster_ and
_R. Hare_, xx, 143.
----, magnetism, production of currents of electricity and sparks from,
xxii, 403.
----, magnetic attraction and repulsion, reciprocating motion of,
xx, 340.^f
----, ---- needle, disturbance during an Aurora, xxii, 143.
----, soap-bubble, experiments with, on molecular attraction,
xlviii, 215.
----, spark from a long conductor in a galvanic battery, xxviii, 327.
----, spiral conductor, action of, xxviii, 329.