---- Erie, coast of, xxix, 204.
---- ----, degradation on, xxxiv, 349.
----, on the eruption of Long and Mud Lake, Vt., _S. E. Dwight_,
xi, 39.^f
---- of the Highlands, N. Y., v, 32.
---- Huron, account of, and of fossils about, iii, 254^f, 270^f, 271.^f
---- Ontario, beaches of, and height, xxxvi, 43.
---- ----, height of, above tide level, depth and temperature,
xxxiii, 403.
---- ----, _C. Dewey_, xxxvii, 242.
---- of the Woods, position of, determined astronomically,
by _J. L. Tiarks_, xv, 41.
_Lalande_, medals founded by, xxv, 190.
Lamp, aphlogistic, iv, 328.^f
----, ----, platina, xx, 385.
----, new astral, v, 386.
----, hydrostatic, xvii, 161.
----, a new, with inflammable air, _J. Green_, ii, 330.^f
----, new, without flame, i, 207.
----, monochromatic, of _D. Brewster_, vii, 363.
----, oil gas, xxii, 387.
----, portable gas, iii, 371.
----, Rumford, xix, 40.
----, voltaic, _J. Cutbush_, ii, 332.
---- black, analysis of, xi, 387.
---- glasses, to prevent the cracking of, xxi, 165.
Land and water, distribution of, xiv, 375.
Land surveys in the U. States, present mode of conducting, xix, 131.
Languages, _F. Adelung's_ work on, iii, 376.
----, number of, on the earth, x, 383.
---- of signs, observations on, _S. Akerly_, viii, 348.
Lanthanium, a new metal, xxxvii, 192.
----, atomic weight of, xlvii, 190.
_Lapham, D._, problems relating to canals, xxvii, 127.^f
----, plan of the canal locks at Cincinnati, Ohio, xxiv, 70.^f
_Lapham, D._ and _I. A._, observations on boulders in Ohio, xxii, 300.
_Lapham, I. A._, statement of elevations in Wisconsin, xlvi, 258.
----, notice of the Louisville and Shippingsport canal, and of the
geology of its vicinity, xiv, 65.^f
_Laplace, P. S._, eulogy on, xxv, 1.
_Larkin's_ Geometry, ii, 359.
Latent heat of vapors, ii, 361.
_Laterrade, J. F._, on the unicorn, xxi, 123.
_Lathrop, J. H._, applications of the igneous theory of the earth,
xxxviii, 68; xxxix, 90.
_Lathrop, S. P._, ice mountain in Vermont, xlvi, 331.
Latitudes, on determining, xlix, 232.
Latitude, reduction of, _T. J. Cram_, xxxi, 222.
---- of the Hudson (Ohio) observatory, xxxix, 362.
---- of Mt. Washington, xli, 384.
---- and longitude of Yale College observatory, xxxiv, 309.
Latrobite, analysis of, _Gmelin_, ix, 330.
Laudanum, denarcotized, mode of preparing, _R. Hare_, xii, 291.
Laumonite, in Delaware, ix, 246.
----, in New York, vi, 365; ix, 41.
----, in Nova Scotia, xxx, 345.
----, moving rocks in a lake in Salisbury, ix, 239.
_Lea, H. C._, description of eight new species of shells, xlii, 106.^f
----, new tertiary shells from Alabama, xl, 92.^f
----, examination of the peroxide of manganese, xlii, 81.
_Lea, I._, contributions to geology, noticed, xxv, 414.
----, causes and effects of earthquakes, ix, 209.
----, on hybernation, ix, 75.
----, impression in sandstone, v, 155.^f
----, on the Naiades, notice of, xvi, 378; xxii, 169; xxvii, 371;
xxxv, 184; xlvii, 104.
----, on the northwest passage, x, 138.
----, New Grenada and Cuba, oolitic strata in, xl, 41.
----, Alabama tertiary and list of fossils, xxv, 417, 419.
----, on the Unionidæ, xxii, 170; xxvii, 371.
----, on the genus Unio, &c., notice of, xxxv, 184.
----, on the study of natural history, xi, 218.
----, a halo and parhelia, x, 368.^f
_Lea, M. C._, on the first or southern coal field of Pennsylvania,
xl, 370.
Lead, sheet, Chinese process of making, vii, 391.
----, on the use of the hot blast in smelting, xlii, 169.^f
----, action of water on, xxxiv, 25; xlvi, 398.
---- in sulphuric acid, test for, xvii, 195.
----, sulphate of, action of some alkaline salts on, _J. L. Smith_,
xlvii, 81.
----, tartrate of, a pyrophorus, ix, 207.
----, native, in Europe, x, 191.
---- mines of the Hartz, xix, 113.
---- ---- of the United States, proceeds from, x, 398.
---- ---- of the West, _J. Locke_, xliii, 147.
---- ---- of the West, remarks on the position and origin of,
xlvii, 106.
---- ----, rock of, of the West, identical with the Niagara limestone,
_J. Hall_, xlii, 59.
---- ---- of Lubec, in Maine, xxx, 332.
---- ---- of Massachusetts, ix, 166; xxii, 56.
---- ---- of Hampshire Co., Mass., notices of, _A. Nash_, xii, 238.^f
---- ---- of Southampton, Mass., i, 136; vi, 201.
---- ---- of Whately and Leverett, Mass., vi, 204.
---- ---- of Middletown and Bethlehem, Ct., vi, 205.
---- ---- and ores in New York, xlvi, 28.
---- ---- at Ancram, New York, notice of, _C. A. Lee_, viii, 247.
---- ---- of northern New York, xxxvi, 24.
---- ---- and ores of Davidson Co., N. C., xli, 183, 348.
---- region of Missouri, _H. R. Schoolcraft_, iii, 248.
---- ---- and ores of Missouri, _Troost_ and _Lesueur_, xii, 379.
---- ---- of Missouri, _J. N. Nicollet_, xlv, 340.
---- ---- of La Motte, the ore of, not argentiferous, xliii, 64.
---- ---- of the upper Mississippi, notice of Chandler's map of,
xvii, 416.
---- ---- of Wisconsin and Missouri, _J. T. Hodge_, xliii, 35.^f
---- ---- of Wisconsin, and mode of working, _J. T. Hodge_, xliii, 41.^f
---- ores, observations on, iii, 176.
---- ----, price of, and of lead in Wisconsin, xliii, 72.
---- ---- of the La Motte mine, Mo., not argentiferous, xliii, 64.
----, native carbonate of, Davidson Co., N. C., analysis of,
xli, 183, 348.
----, ---- ----, in Massachusetts, vi, 201; ix, 249.
----, ---- ----, in Missouri, xii, 379.
----, ---- ----, in Wythe Co., Va., xliii, 169.
----, ---- chloride of, in Massachusetts, vi, 201.
----, ---- native cupreous sulphato-carbonate of, iv, 29.
----, ---- diarseniate of, _T. Thomson_, xxxv, 297.
----, ---- molybdate of, in Massachusetts, vi, 201.
----, ---- ----, in New York, viii, 249.
----, ---- red and yellow oxide of, in Wythe Co., Va., xliii, 169.
----, ---- phosphate of, in Massachusetts, vi, 201.
----, ---- ----, in North Carolina, xli, 183, 348.
----, ---- sulphato-carbonate of, iv, 29.
----, ---- sulphato-tri-carbonate of, iv, 29.
----, ---- sulphuret of, (Galena) crystals, distorted, from Rossie,
xlvii, 417.
----, ---- ----, argentiferous ore of Lane's mine, analysis of silver
from, _W. W. Mather_, xxvii, 256.
----, ---- ----, in Canada, viii, 76.
----, ---- ----, in Connecticut, i, 316; iii, 173; v, 44^f; xxvii, 256;
xxxiii, 162.
----, ---- ----, in Maine, xxx, 332.
----, ---- ----, in Massachusetts, i, 115, 137, 343, 437; vi, 201, 204;
viii, 57; xii, 251; xxii, 56.
----, ---- ----, in Missouri and the West, see above, under
_Lead Mines_.
----, ---- ----, in New Hampshire, vi, 245; viii, 235; xxxiv, 114.
----, ---- ----, in New York, v, 21, 30; vii, 254; viii, 260; xxv, 350;
xl, 76; xlvii, 417.
----, ---- ----, in Rhode Island, viii, 231.
----, ---- ----, in Tennessee, i, 63.
----, ---- ----, in Virginia, i, 63; xliii, 169.
---- pipes, strength of, xii, 189; xiv, 369.
----, ---- used as an aqueduct, hydrogen in, _N. Walkly_, xxxiv, 393.
----, ----, Ewbank's tinned, notice of, xxvi, 210.
----, ----, protected by tin, safety of, xxvi, 400.
----, and tin, combustion of the alloy of, xxi, 375.
----, pots, manufacture of, by Messrs. Dixon, xxi, 196.
Leafing of plants, xliv, 419.
Leather, fabrication of Russian, iv, 193.
_Leavenworth, M. C._, four new plants from Alabama, vii, 61.
----, list of the rarer plants of Alabama, ix, 74.
----, description of the Tullia pycnanthemoides, xx, 343.^f
----, on some new species of plants, xlix, 127.
Lebanon, Mt., coal mine of, xxviii, 32.
Lederer's cabinet of minerals for sale, xxix, 392.
Ledererite, supposed new mineral, _C. T. Jackson_ and _A. A. Hayes_,
xxv, 78^f, 80.
----, description of, xlvii, 339, 350.
Lederite, a supposed new mineral species, _C. U. Shepard_, xxxix, 357^f;
xlviii, 176.
----, of Shepard identical with Sphene, xlvi, 36.^f
----, identical with Sphene, _B. Silliman, Jr.,_ xlviii, 180.
----, measurements of, by _J. D. Dana_, xlviii, 180.
_Lee, C. A._, sketch of the geology and mineralogy of Salisbury, Ct.,
viii, 252.
----, notice of the Ancram lead mine, viii, 247.
Leech, account of, x, 389; xxiv, 160.
Leeches, mortality of, during storms, xvii, 186.
_Leedom, E. C._, an astronomical machine, xlii, 338.^f
Leghorn hats, on the cultivation of the material for, xxii, 363.
Leguminous fruits, flour or meal from, vii, 189.
_Leibnitz, G. W. von_, notice of life of, xlix, 187.
----, Protogæa of, or his views on the formation of the earth,
xx, 56; xxxix, 15.
Leipsic fair, notice of, iv, 392; vii, 381; xxiii, 182.
_Leitner, E. T._, on double flowers, xxiii, 45.
Lens, crystalline, of animals, how preserved for future examination,
xxvi, 216.
_Lenz_ on the saltness of the ocean at different depths, xxiii, 10.
Lepidanche, new genus, _G. Engelmann_, xliii, 343.
----, appressa, xlv, 77.
----, compositarum, xliii, 344^f; xlv, 77.
Lepidolite, analysis of, _Gmelin_, ix, 329.
----, in Maine, x, 16; xviii, 293.
----, in Massachusetts, i, 350.
_Lester, W._, geological map of New London and Windham Cos., Ct.,
xxiii, 404.
Level of the Dead Sea, barometrical observations made to determine,
xlii, 214.
----, difference of, between the Black and Caspian Seas, xl, 320.
----, change of, during earthquakes in Calabria, Chile, Scandinavia,
Finland, &c., _G. Bischof_, xxxvi, 273.
----, ----, various examples of, _W. W. Mather_, xlix, 294.
----, ----, in Chile, xxviii, 236.
----, ----, ----, and elsewhere in S. America, _C. Darwin_, xxxiii, 100.
----, ----, at Ceylon, vi, 194.
----, ----, in Great Britain, xxxiii, 97; xxxiv, 27.
----, ----, about the North American Lakes, _C. Lyell_, xlvi, 314.
----, ----, about Lake Huron, indicated by ancient beaches, iii, 257.
----, ----, about Lake Ontario, ibid, _G. E. Hayes_, xxxv, 104.
----, ----, in Maine, _C. T. Jackson_, xxxvi, 154.
----, ----, in New York, about Canaan mountain, v, 15.
----, ----, ----, in the Mohawk valley, xxxvi, 31.
----, ----, in Palestine, _J. D. Sherwood_, xlviii, 15.
----, ----, on the Scandinavian coast, _L. Beamish_, xlvii, 184.
----, ----, in Sweden, _C. Lyell_, xxviii, 72, 387.
----, ----, in United States and California during the tertiary epoch,
_T. A. Conrad_, xxxv, 245.
----, causes of changes of, _G. Bischof,_ xxxvi, 278.
----, ---- ibid, _W. W. Mather_, xlix, 284.
----, ---- ibid, _H. D._ and _W. B. Rogers_, xliv, 360.
_Lewis, J. A._, Kenawha gas, xlix, 209.
_Lewis, W. J._, involution of polynomials, xlii, 239.
Lexicography, contributions to English, _J. W. Gibbs_, xxxiii, 324;
xli, 28, 32; xlv, 96.
Leyden jar, effect of freezing water in, viii, 374.
---- ----, on the discharge of, xxxviii, 6.
_Lezch, J. U._, volatile acids of butter, xlix, 202.
Lias of the west, _S. P. Hildreth_, xxx, 395.
Liatris flexuosa, xxxvii, 388.^f
---- fruticosa, v, 299.
---- oppositifolia, v, 299.
---- scariosa, iv, 67.
---- squarrosa, iv, 66.
Library, Royal, at Paris, size of, viii, 376.
---- of Yale College, donation to, from England, xxvii, 184.
Libraries of the world, comparative table of, xxxi, 178.
----, circulating, in England, v, 175.
---- of St. Petersburg, v, 177.
Lichen rocella, coloring matter of, xviii, 151.
_Liebig, J._, on creosote, xxviii, 131.
---- and _Wöhler_, on the radical of benzoic acid, xxvi, 261.^f
----, on bitter almond oil, xxvi, 263.
Life, on the functions of vegetable, _G. T. Burnett_, xxi, 153.
----, mean term of, among the Romans, xvii, 188.
----, mean term of, in France and England, xvii, 188.
----, probability of, from registers kept at Geneva, xv, 187.
---- of a molluscous animal, singular preservation of, xxviii, 355.
---- apparatus, notice of _Murray's_, xxviii, 70.
---- preservers, xiv, 189.
Light and heat, _S. Morey_, ii, 118, 122.
---- and magnetism, connexion between, _G. Gibbs_, i, 89.
----, observations and experiments on, _S. Adams_, xlii, 123.
----, absorption of, by the atmosphere, xlvi, 201.
----, action of, chemical, xvii, 376.
----, ----, in producing chemical changes, _J. W. Döbereiner_,
xxii, 352.
----, ----, in decomposing carbonic acid and alkaline carbonates,
_J. W. Draper_, xlvi, 398.
----, ----, on the color and movement of plants, _D. P. Gardner_,
xlvi, 1.^f
----, ----, on an elementary substance, producing, as supposed,
a change, _J. W. Draper_, xlvi, 390.
----, ----, on an iodized silver plate, producing electricity,
xlvii, 190.
----, ---- of solar spectrum, chemical, xxxi, 260.
----, ---- ---- ----, on sensitive paper, _J. F. W. Herschel_,
xxxviii, 110.
----, ---- of gaseous and other media on the solar spectrum, xlii, 157.
----, blanching effects of, obviated, xxxv, 338.
----, halo of, which surrounds all bodies, _Mary Griffith_, xxxviii, 22.
----, influence of, on germination, _R. Hunt_, xliv, 352.
----, ----, on the growth of plants, xliv, 352; xlvi, 397.
----, intensity of, how measured, xv, 184.
----, new case of interference of, _Powell_, xxxviii, 107.
----, apparatus for experiments on inflection and interference of,
_E. S. Snell_, xlix, 26.^f
----, latent, _J. W. Draper_, xliv, 202.
---- lines seen at regular intervals, a new property, _D. Brewster_,
xxxiv, 20.
----, magnetic influence of the violet ray of, xviii, 171.
----, ---- ---- of the solar rays, xiii, 188.
----, on the deflection of, xviii, 176.
----, monochromatic, for microscopic observations, xiii, 190.
----, oxy-hydrogen, for light-houses, improvement in, by use of sulphate
of lime, xxviii, 355.
----, a new kind of polarity in homogeneous, _D. Brewster_, xxxv, 292.
----, polarization of, by reflection, _D. Brewster_, xxii, 277.^f
----, ----, by refraction, laws of, _D. Brewster_, xxiii, 225.^f
----, ----, elliptic, of reflected, _Powell_, xliv, 171; xlvi, 390.
----, ----, rings produced in specimens of decomposed glass,
_D. Brewster_, xl, 325.
----, on the passage of, through small apertures, and on the cause
of prismatic analysis, _C. C. Conwell_, xx, 350.
----, on the production of, _R. Hare_, ii, 172.
----, ----, _J. L. Sullivan_, i, 91.^f
----, ----, from quicklime, xiv, 385.
----, ----, ibid, for geodetical operations, xiii, 188.
----, on the production of, from quicklime, for light-houses,
_T. Drummond_, xxi, 366.
----, reflection of, from different surfaces, _Potter_, xxviii, 59.
----, action of second surfaces of transparent plates on, _D. Brewster_,
xxiii, 28.^f
----, solar, curious effect of, xii, 164.
----, ----, as compared with that of the moon and fixed stars,
xvii, 362.
----, ----, chemical action of, see above.
----, zodiacal, see _Zodiacal_.
Lights, northern, see _Aurora Borealis_.
Light-houses, ix, 199.
----, lighted by means of lime, _T. Drummond_, xxi, 366.
Lighting by gas, see _Gas_.
---- of apartments, new method in Venice, x, 385.
Lightning, cure of asthma by, vi, 329.
----, a case of paralytic affection cured by, iii, 100.
----, effect of a stroke of, xvii, 193; xlvi, 215.
----, effects of a stroke of, in Wethersfield, Ct., xi, 359.
----, ---- ----, _J. H. Linsley_, xlii, 393.
----, ---- ----, upon the packet ship New York, _C. Rich_, xxxvii, 321.
----, ---- ----, on three ships, xxxviii, 112.
----, several strokes of, from the same explosion, v, 125.
----, passage of, _E. Kellogg_, ix, 84.
----, protection of steamboats from, _A. Jones_, xxii, 106.
----, wet or damp clothes, good conductors of, v, 121.^f
----, heat, xix, 187.
----, conductors in ships, utility of, _W. S. Harris_, xxi, 347.
---- rods, _R. Hare_ on, xiii, 322.
---- ----, _J. Murray_, xix, 186.
---- ----, observations on, _J. Van Rensselaer_, ix, 331.
---- ----, on the action of, xxxiv, 8, 18.
---- ----, mode of adjusting, xviii, 361.
---- tubes in sand, see _Fulgurite_.
Lignite, at Auteuil, in France, ii, 351.
----, on the carbonization of, xviii, 371.
---- of the ferruginous sand formation, U. States, xviii, 246.
----, in North Carolina, v, 407; xiv, 250.
---- of the McKenzie river and northern America, xvii, 4.
----, in Texas, xxxvii, 216.
Ligustrum vulgare, x, 258.
Lilium canadense, xi, 177.
---- Catesbæi, xi, 177.
Lime, intense light produced by means of, xiii, 188; xiv, 385; xxi, 366.
----, quantity used in Baltimore in 1832, xxvii, 17.
----, chloride of, x, 386; xv, 391; xvi, 387; xix, 166.
----, ----, used in psora, xvi, 395.
----, ----, use of, in the navy, xix, 164.
----, ----, action of, in alcohol, _E. Soubeiran_, xxiii, 134.
----, ----, manufacture of, at Glasgow, _T. Thomson_, xli, 48.
----, ----, ----, _G. W. Carpenter_, xvi, 177.
----, ----, estimation of the bleaching power of, xvii, 170; xxii, 354.
----, ----, disinfecting power of, xix, 177.
----, ----, disinfection at the Morgue, in Paris, xxi, 149.
----, common and hydraulic, iv, 373.
----, nitrate of, i, 133.
----, phosphate of, see _Apatite_.
----, sulphate of, from steam boilers, _J. F. W. Johnston_, xxxv, 300.
----, ----, and not carbonate in the waters of Pyrmont, xv, 185.
----, ----, used with the oxy-hydrogen flame for light-houses,
xxviii, 355.
----, ----, see _Gypsum_.
Limestone, basaltiform, of Kingston, U. C., _R. H. Bonnycastle_,
xxiv, 97; xxx, 233.^f
----, ibid, containing shells, penetrated with syenite,
_R. H. Bonnycastle_, xxx, 243.^f
----, in Massachusetts, xxii, 24.
----, fertilizing properties of, xxx, 383.
----, compact, in eastern N. York, viii, 21.
----, ----, dove-colored, N. Y., iv, 44.
----, ----, rhomboidal structure of, at Boonville, N. Y.,
_O. P. Hubbard_, xxxii, 231.^f
----, ----, from St. Louis, Mo., analysis of, xliii, 21.
----, ----, of N. Carolina, analysis of, _J. T. Hodge_, xli, 334.
----, fetid, iii, 234.
----, granular, in the U. States, xli, 240.
----, ----, ----, in Maine, _C. T. Jackson_, xxxvi, 145, 147.
----, ----, singular conformation near Williamstown, Mass., _C. Dewey_,
ix, 19.^f
----, ----, in Bolton, Mass., vii, 52.
----, ----, ranges of, through western Massachusetts, viii, 13, 28.
----, ----, ibid, alternation with mica slate, viii, 15.
----, ----, of the Connecticut valley, vi, 37; viii, 240.
----, ----, ibid, alternating with mica slate, viii, 240.
----, of Connecticut, at Salisbury, viii, 240.
----, ----, of New York, v, 266.
----, ----, of Pennsylvania, v, 41.
----, ----, &c., near Hudson's Bay, xvii, 13.
----, ----, of Maryland, fossils in, xxvi, 222.
----, granular, of New Jersey, minerals of, v, 239.
----, ----, ibid, alternating with granite rocks, v, 247.
----, ----, passing above into a secondary fossiliferous limestone,
v, 247.
----, effect of trap dikes on, xxix, 351.
----, hydraulic, of New York, xxxix, 96; xlvi, 29.
----, ----, in the Appalachian chain, xxxvii, 381.
----, ----, magnesian character of, xxxvii, 381.
----, polished, of Rochester, _C. Dewey_, xxxvii, 240.
----, siliceous, (argentine) in Massachusetts, v, 268.
Limonia acidissima, v, 295.
_Lincoln, B._, notice of a water spout, xiv, 171.^f
Lincolnite, _E. Hitchcock_, xlvii, 416; xlviii, 64.
----, _C. U. Shepard_, xlviii, 175.
----, _B. Silliman, Jr._, xlviii, 180.
---- identical with Heulandite, _F. Alger_, xlvi, 233.^f
Lindernia saxicola, xliv, 83.
_Lindley, J._, review of the natural system of Botany of, xxxii, 292.
----, effect of the frost of the winter 1837-38, on plants in England,
xxxix, 18.
Linen, a substitute for, found at Salem, Mass., xxvii, 179.
Lingula, fossil, indicating marine currents, near Lockport, N. Y.,
xxxvi, 37.
_Linnæus, C._, notice of an autobiography of, iii, 379.
----, life and works of, _C. Fox_, xxxvii, 142.
----, Systema Vegetabilium, a new edition of, _Romer_, i, 435.
----, letters from, to C. Colden, xliv, 111.
----, memoir of, xxv, 151.
----, notice of the herbarium of, xl, 2.
_Linsley, J. H._, catalogue of the birds of Connecticut, xliv, 249.
----, catalogue of the fishes of Connecticut, xlvii, 55.
----, catalogue of the mammalia of Connecticut, xliii, 345.
----, catalogue of the reptiles of Connecticut, xlvi, 37.
----, on a stroke of lightning, xlii, 393.
----, obituary notice of, xlvi, 216.
Liquefaction of gases, _M. Faraday_, vii, 352; xlix, 373.
---- ----, _J. Torrey_, xxxv, 374.
---- ----, _J. K. Mitchell_, xxxv, 346.^f
Liquids, principles of the resistance of, _L. R. Gibbes_, xxvii, 135.
----, ---- ----, _A. Bourne_, xxviii, 231.
----, ---- ----, _G. W. Keely_, xxviii, 318^f; xxx, 164; xxxi, 111.
----, ---- ----, _E. W. Blake_, xxix, 274; xxx, 359.
----, ---- ----, _Russel_, xxix, 351.
----, revolving motion in, xix, 391.
---- of different specific gravities together, rotation of,
_W. R. Johnson_, xxvii, 84.^f
----, on the upward forces of, _E. C. Genet_, xi, 110, 339^f;
xii, 94, 310; xiii, 377.
----, ibid, reply by _T. P. Jones_, xiii, 79.
_Lister, Martin_, notice of, _C. Fox_, xxxvii, 137.
Lithia, a new alkali, i, 309.
----, blowpipe test, when mixed with soda, xlviii, 193.
----, new process for obtaining, _Quesneville_, xx, 194.
Lithographic establishment in Portugal, ix, 366.
---- impressions of leaves of plants, v, 170.
---- paper, iii, 370.
---- printing of MSS., iv, 197.
---- stone, new locality of, in Spain, v, 386.
---- ----, locality in the French Pyrenees, xlix, 401.
Lithography, notice of, iv, 169.
Litmus paper, as prepared by _Gay Lussac_, xvii, 165.
Litrameter, on the, xi, 133.^f
_Litton, A._, a double sulphite of the protoxide of platinum and soda,
xliv, 274.
Liver pies of Strasburgh, xxii, 194.
Liverpool, objects of interest in, xxxiv, 52.
Living molecules, _R. Brown's_, xvii, 390.
---- particles in all kinds of matter, motion of, xix, 393.
Lizards in chalk, xxxvii, 402.
----, see under _Zoology, Reptiles_.
Lobelia aphylla, v, 297.
_Locke, J._, alabaster of the mammoth cave of Kentucky, xlii, 206.^f
----, a new botanical press, xxx, 54.^f
----, microscopic compass, xxiii, 237.^f
----, on the manipulations of the dipping compass, xlii, 235.
----, electro-magnetic multiplier, xxvi, 380.
----, notice of a galvanometer, xxvi, 103.^f
----, improvements on his galvanometer, xxvi, 378^f; experiments with,
379, 381.
----, on a large thermoscopic galvanometer, xxxiii, 365.
----, geology of the U. States, west of the Allegany Mountains,
xli, 160.
----, lead region of the West, xliii, 147.
----, magnetic dip in the United States, xli, 15.
----, ---- ---- at Baltimore, xlii, 258.
----, on magneto-electricity, and electro-magnetic machines,
xxxiv, 125.^f
----, connection between geology and magnetism, xlvii, 101.
----, on manufacture of maple sugar, ii, 259.
----, notice of a new trilobite, Ceraurus crosotus, xliv, 346^f;
xlv, 222.^f
----, Isotelus megistus, a new trilobite, xlii, 366.^f
_Lockwood, M. B._, variation of the magnetic needle at Providence,
R. I., xliv, 314.
Locust, seventeen year, habits of, xiii, 224.
----, ---- ----, notice of, _S. P. Hildreth_, xviii, 47.^f
----, ---- ----, remarks on, _D. Thomas_, xxi, 188.
Locusts in China, xxxi, 193.
Lodoicea sechellarum, notice of, _J. E. Teschemacher_, xxxvii, 396.
Logan, murder of the family of, xxxi, 11.
Logarithmic tables, corrections in _Hassler's_, xxii, 181.
---- and exponential theorems, new mode of obtaining, _T. Strong_,
xlviii, 36.
Logwood, on hæmatoxylin the coloring principle of, xliv, 357.
_Long's_ expedition to the Rocky Mountains, vi, 374.
_Long, G. W._, description of a frame bridge, xviii, 123.^f
----, on the origin of springs and fountains, xvii, 336.
----, a parasite tree, xxvi, 106.^f
Long lake and Mud lake, Vt., on the eruption of, _S. E. Dwight_,
xi, 39.^f
Longevity of trees, xxii, 379.
---- of the yew tree, xxix, 353.
---- ---- ----, _Bowman_, xxxi, 358.