culmination of the moon and stars, ix, 107.
----, determination of, by means of shooting stars, xxxix, 372;
xlii, 399.
----, arc of, between Dublin and Armagh, xxxviii, 113.
---- deduced from the eclipse of Sept. 18, 1838, xxxix, 367.
---- of New York, v, 143.
---- of New York City Hall, xxxviii, 113; xl, 43.
---- of Alexandria, D. C., xxxix, 368.
---- of Boston, xl, 43.
---- of Brooklyn, N.Y., xxxix, 369; xl, 43.
---- of Burlington, N.J., xxxix, 368.
---- of Dorchester Observatory, Mass., xxxix, 369; xl, 43.
---- of Dover, Ohio, xxxix, 368; xl, 43.
---- of Germantown, Penn., xxxix, 368.
---- of Haverford School, Penn., xxxix, 368.
---- of New Haven, xxxiv, 309; xxxix, 369; xl, 43.
---- of Hudson Observatory, Ohio, xl, 43.
---- of Philadelphia State House, xxxix, 368; xl, 43.
---- of Philadelphia High School Observatory, xl, 43.
---- of Princeton, N.J., xxxix, 368; xl, 43.
---- of Southwick, Mass., xxxix, 369; xl, 43.
---- and latitude of Turtle Island, Lake Erie and South Bend lake,
Michigan, xxxviii, 154.
---- of Washington capitol, xxxix, 368; xl, 43;--marine observatory,
xl, 43.
---- of Weasel mountain, N. J., xxxix, 368.
---- of Wesleyan University, Middletown, Ct., xxxix, 369.
---- of Williamstown College, Mass., xxxix, 369.
---- of Western Reserve College, Ohio, xxxix, 368.
_Loomis, E._, clouds, register of, Hudson, Ohio, xli, 323; xlix, 280.
----, on Halley's comet, xxx, 209.
----, hygrometric observations at Hudson, Ohio, 1838-1840, xli, 315.
----, ---- ----, 1841-1844, Hudson, Ohio, xlix, 271.
----, latitude and longitude of Yale College observatory, xxxiv, 309.
----, on the variation and dip of the magnetic needle in different parts
of the U. States, xxxiv, 290^f; xxxix, 41^f; xl, 85; xliii, 93.
----, magnetic dip of various places in Ohio and Michigan, xxxviii, 397.
----, observations on the variation of the magnetic needle
at Yale College, xxx, 221.
----, examination of _Gauss's_ theory of terrestrial magnetism,
xlvii, 278.
----, meteorological register at Western Reserve College,
Sept.-Nov., 1838, xxxvi, 165.
----, ---- ibid, for 1838-1840, xli, 310.
----, ---- ibid, for 1841-1844, with a summary for seven years,
xlix, 266.
----, on shooting stars, xxviii, 95.^f
----, on the meteor of May 18, 1838, and on shooting stars in general,
xxxv, 223.
----, on a hurricane which passed over Stowe, Ohio, Oct. 1837,
xxxiii, 368.^f
----, on the storm of Dec. 1836, in the U. States, xl, 34.
----, ----, Feb. 1842, Mayfield, Ohio, xliii, 278.^f
----, list of tornadoes in the United States, since 1823, xliii, 298.
----, direction of rotation of small whirlwinds, xliii, 296.
----, on vibrating dams, xlv, 363.^f
_Lord, E._, on architectural, rural, domestic, and other improvements,
xxv, 304.
Louisiana, trees with axe marks, _W. M. Carpenter_, xxxvi, 118.^f
----, fossil tooth, _W. M. Carpenter_, xlii, 390.^f
----, fossil teeth of the mastodon and horse, _W. M. Carpenter_,
xxxiv, 201.^f
----, meteorological register at Jackson, _W. M. Carpenter_,
1839-1841, xliv, 49.
----, hailstorm in, _W. M. Carpenter_, xxvii, 171.
----, Opelousas and Attakapas, geological character of the prairies,
with remarks on the vegetation of, _W. M. Carpenter_, xxxv, 344.
----, ibid, bituminized wood, East Feliciana, xxxv, 345.
Lowell, facts relating to, xxvii, 340.
_Löwitz, H. Fitz_, fusible cement of, xvii, 81.^f
Ludlow rocks, fossil shells of, xxx, 48.
Luminous appearances in the atmosphere, _J. A. Allen_, iv, 341.
Lunar distance, instrument for finding, _M. F. Maury_, xxvi, 63.^f
Lungs, disease from dust in, xxxiv, 29.
Lupulin, remarks on, xii, 388.
Lute or cement, Willis's, vii, 392.
---- for bottling wine, &c., xxiv, 205.
----, see farther, _Cement_.
Luther, statue of, v, 181.
Lyceum of Natural History, New York, abstract of the proceedings of,
ii, 366; vi, 361; vii, 171; viii, 192; ix, 387; x, 198; xiii, 378;
xiv, 190; xv, 191, 357; xvi, 205, 354; xviii, 193; xix, 159, 353;
xxvii, 148; xxviii, 189; xxxvi, 195.
---- ibid, officers of, viii, 192; xv, 193; xvi, 355; xxxii, 204;
xxxvi, 195; xlviii, 404.
----, ibid, memorial of, on a geological survey of N. York, xvi, 358.
----, ibid, annals of, commenced, vii, 359;--noticed, xxxiv, 214.
----, Naval, of Brooklyn, xxvii, 390.
----, at Troy, ii, 173.
Lychnopora, a new genus from S. America, notice of, ix, 375.
Lycoperdon tuber, or Indian bread, ii, 369.
---- giganteum, xxxviii, 391.
Lycopodites, generic characters of, vii, 180.
Lycopodium, remark on the yellow powder of, xxxix, 399.
---- annotinum, xlv, 46.
---- inundatum, xlv, 47.
---- selago, xlv, 48.
_Lyell, C._, medal of the Royal Society conferred on, xxx, 174.
----, address before the Geological Society of London, 1837, xxxiii, 76.
----, on the changes of climate on the earth in past times, xx, 377.
----, coal formation of Nova Scotia, and on the age and position of the
gypsum, xlv, 356.
----, upright trees in the coal strata of Nova Scotia, xlv, 353.
----, on the cretaceous strata of New Jersey, xlvii, 213.
----, on the elevated beaches, and boulder formations of the
Canadian lakes and valley of St. Lawrence, xlvi, 314.
----, on the elevation of Sweden, xxviii, 72, 387.
----, footprints of birds in the Connecticut valley, xlv, 394.
----, views on granite, xxxiii, 116.
----, probable age of graphite and anthracite in the mica slate
at Worcester, Mass., xlvii, 214.
----, geological position of the mastodon at Big Bone Lick, Ky.,
and elsewhere, xlvi, 320.
----, geology of, 4th edition, notice of, xxix, 358.
----, proposed visit to the United States, xli, 403; xlii, 213.
_Lyon, L._, on surveying instruments, xiv, 268.^f
M.
_Macaire_, vegetable physiology in relation to rotation of crops,
xxiii, 138.
----, injurious action of gases on vegetation, xxiii, 193.
----, on nitrogen in animal substances, xxiii, 384.
----, experiments on hydrochloric acid, xi, 393.
_McConnell, B. R._, notice of a revolving electro-magnetic instrument,
xxxiii, 188.
_McCord, J. S._, meteorological observations at Montreal, 1836-40,
xli, 330.
_MacCulloch, J._, essay on remittent and intermittent fevers,
xviii, 338.
_McGuire, W. W._, on the prairies of Alabama, xxvi, 93;--causes of,
xxvi, 96.
Machine for cleaning grain invented, iv, 387.
---- and its model, relation between, _E. Sang_, xxiv, 264.
Machines, examination of, maximum and minimum effect of,
_A. B. Quinby_, xii, 346.
----, electrical, see _Electrical_.
Machinery, use of soapstone in diminishing friction of, xiii, 192.
---- and manufactures, economy of, xxiv, 105.
Macle, see _Chiastolite_.
_Maclure, W._, on different systems of education, ix, 160, 163.
----, on the Pestalozzian system of, ix, 163; x, 145.
----, geological arrangement, outlines of, i, 209.
----, systematic arrangement of rocks and their probable origin,
vii, 261.
----, geological systems, geological maps, and chatoyant feldspar,
ix, 253.
----, ---- changes in N. America, conjectures on, east of the
Stoney mountains, vi, 98.
----, ---- remarks on Mexico, xx, 406.
----, igneous theory of the earth, remarks on, xv, 384; xvi, 351.
----, on Mosaic geology, ix, 157.
----, passage to Mexico of, xv, 400.
----, memoir of, _S. G. Morton_, xlvii, 1.^f
----, list of works of, xlvii, 16.
Maclurite, description of, v, 246.
----, analysis of, _H. Seybert_, v, 336.
----, identical with chondrodite, v, 366.
----, in New Jersey, v, 343.
Madeira, notice of, xxiv, 238.
----, wines of, xxiv, 240.
Mæcenas, bust of, xxxiv, 51.
_Maerenhaut, J. A._, on Otaheite, xxix, 283.
_Magendie, F._, on the mechanism of absorption in animals, iii, 288.
----, on prussic acid, ii, 81.
Magic, natural, remarks on, xxxiii, 258.
Magnesia, effect of, on soil, xli, 159.
----, solubility of, v, 378.
----, in compact limestones, large proportion of, _R. E. Rogers_,
xli, 171.
----, carbonate of, of Staten Island, N. Y., i, 142; v, 266.
----, ----, in Pennsylvania, i, 236; xiv, 18.
----, hydrate of, description and analysis of, iv, 245.
----, ----, in New Jersey, i, 55; iv, 17; v, 267.
----, ----, in Hoboken, i, 54; iv, 17; vii, 370.
----, ----, from Shetland, vii, 365.
----, nitrate of, i, 133.
----, sulphate of, i, 133; ii, 375; xv, 241.
----, ----, native in New York State, xv, 241.
---- and soda, sulphate of, xlviii, 189.
Magnesian carbonate of lime, in N. York, analyses of, _L. C. Beck_,
xlvi, 34.
---- hydrate of silica. Harford Co., Md., _P. T. Tyson_, xviii, 79.
---- ---- ---- identity of, with Deweylite, _C. U. Shepard_, xviii, 81.
---- pseudomorphs, and metamorphic changes, xlviii, 89.
Magnesite, hard, from Baumgarten, Silesia, vii, 368.
----, in N. York, v, 267; xlvi, 34.
----, in Maryland, xiv, 12.
----, in Pennsylvania, xiv, 9, 10.
Magnesium, notice of, xix, 197, 379; xxvii, 196.
----, obtained by _W. W. Mather_, xx, 408.
Magnets, cast iron, xxxiii, 265.
----, chemical action in needles suspended from, xviii, 402.
----, best position of, for mutual action, _H. Lloyd_, xxxviii, 96.
----, current produced by the rotation of, _Pixii_, xxiv, 144, 146.^f
----, electric spark from, _J. Henry_, xxii, 403.
----, a mode of producing sparks and galvanic currents from the
horse shoe, _J. P. Emmet_, xxiv, 78.^f
----, new method of making permanent, xxxvi, 335.^f
----, galvanic, construction of, _J. B. Zabriskie_, xxxvi, 124.^f
----, ----, Henry's large, xix, 408.^f
----, ----, made for Laboratory of Yale College, xx, 201.
----, ----, Humbert's, xxxviii, 204.
----, ----, Ganby's, xxix, 354.
----, ----, Page's, xxxv, 253.^f
----, ----, E. M. Clarke's, xxxiii, 213.^f
----, ----, see farther under _Electro-Magnetic_ and _Magneto-Electric_.
----, musical tones from, _C. G. Page_, xxxii, 396; xxxiii, 118;
xlviii, 401.
----, cause of voltaic currents with, _J. P. Emmet_, xxvi, 23.^f
----, native, in Rhode Island, iv, 285; v, 402.
Magnetic attraction and repulsion, law of, _R. W. Fox_, xxviii, 370.
---- ---- ---- reciprocating motion of, _J. Henry_, xx, 340.^f
---- chart, of the U. States, _E. Loomis_, xxxiv, 290; xxxix, 41.
---- compass, mariner's, on the invention of, _A. Humboldt_, xl, 242.
---- dip, in different parts of the world, _T. H. Perry_, xlvii, 84.
---- ----, at different places in Europe, xl, 30.
---- ----, in Ireland, _H. Lloyd_, xxxv, 296.
---- ----, at Perth, Scotland, xl, 342.
---- ----, at St. Petersburg, xxi, 382.
---- ----, at different places in the U. States, xl, 380.
---- ----, ibid, _J. Locke_, xxxix, 319; xl, 149; xli, 15.
---- ----, ----, ibid, remarks on, xxxix, 325.
---- ----, ibid, _E. Loomis_, xxxiv, 290^f; xxxix, 41^f; xl, 85.
---- ----, at various places in Ohio and Michigan, _E. Loomis_,
xxxviii, 397.
---- ----, ---- ibid, at Cincinnati, _J. Locke_, xl, 56.
---- ----, at Philadelphia and Baltimore, _A. D. Bache_, xl, 375.
---- ----, at Baltimore, _J. Locke_ and _J. N. Nicollet_, xlii, 239.
---- ----, at Nantucket, _W. Mitchell_, xlvi, 157.
---- ----, daily variation in, _Kupffer_, xxv, 194.
---- ---- and intensity determined by one instrument, _H. Lloyd_,
xxxviii, 179.
---- discoveries by _H. H. Sherwood_, xxxiv, 210.
---- effects from Hare's calorimotor, _G. T. Bowen_, v, 357.
---- experiments, showing the effect of cold and heat on steel bars,
_Kupffer_, xxv, 194.
---- influence of the sun's rays, xiii, 188; xviii, 181.
---- ---- of the violet ray, xviii, 171.
---- instrument, new, called a Solar Index, _M. Conant_, xlix, 301.^f
---- iron, see _Iron_.
---- intensity, at great elevations, _J. D. Forbes_, xxxi, 369.
---- ----, at different places in Europe, xl, 30.
---- ----, in Ireland, _H. Lloyd_, xxxv, 296.
---- ----, daily variation and changes in, _H. Lloyd_, xlvi, 391.
---- ----, in different places in the United States, xl, 378.
---- investigations, by _W. Scoresby_, xlviii, 33.
---- needle, dipping, theory of adjusting, _T. H. Perry_, xxxvii, 277.
---- ----, ----, manipulations of, _J. Locke_, xlii, 235.
---- ----, dip of, see _Magnetic dip_.
---- ----, on the influence of the Aurora on, xxxiv, 285.
---- ----, ibid, _Franklin_, xvi, 148.
---- ----, ibid, _J. Henry_, xxii, 143.
---- ----, ibid, of Jan., 1837, New Haven, xxxii, 179.
---- ----, ibid, in July, 1837, xxxiii, 146.
---- ----, ibid, at Schenectady, Jan., 1837, &c., _B. F. Joslin_,
xxxv, 152.
---- ----, ibid, Nov. 14, 1837, _E. C. Herrick_, xxxiv, 269.
---- ----, ibid, xl, 48.
---- ----, ibid, May, 1840, at Toronto, xl, 337.
---- ----, ibid, as seen at Greenwich, xl, 338.
---- ----, influence of coasts on the deflection of, xxviii, 62.
---- ----, ---- of heating to the temperature of boiling water,
xxxviii, 180.
---- ----, influence of iron cooled to a low red heat, xxix, 348.
---- ----, improvement in the manufacture of, _A. Eaton_, xii, 14.
---- ----, improvement in, reply to the same, xii, 232.
---- ----, made of thin plates not in contact, _W. Scoresby_,
xxxiv, 398.
---- ----, oscillations of, differing near different metals, xv, 182.
---- ----, polarity and dip of, a remark on, xxix, 353.
---- ----, made to indicate the true north, xxvi, 90.
---- ----, on the connexion of the theory of the earth with the secular
variations of, _J. H. Lathrop_, xxxviii, 68.
---- needles, best position of three, for mutual action, _H. Lloyd_,
xxxviii, 96.
---- observations, a union of effort urged for carrying on, xviii, 380.
---- ----, great scheme for, by the Royal Society of London,
xxxvii, 198.
---- ----, ibid, by British Association, xl, 335; xlii, 151; xliii, 374.
---- ----, in Russia and other countries, in progress, xlii, 153.
---- ----, coöperation of the Amer. Acad. of Arts and Sciences in
a general system of, xxxix, 193.
---- ----, corresponding, by _A. D. Bache_ and _H. Lloyd_, xli, 260.
---- observatory at Dublin, xxxiv, 3.
---- poles, revolution of the two, xxix, 352.
---- polarity, notice of, _D. H. Barnes_, xiii, 70.
---- ----, reply to _D. H. Barnes_, xiv, 121.
---- ---- of rocks, xx, 198.
---- power of a galvanic battery, v, 388.
---- separating machine for magnetic ores of iron, used at Franconia,
xviii, 289.
---- variation, daily, different in different places, xix, 189.
---- ----, at Perth, Scotland, xl, 342.
---- ----, at Paris, France, xxxi, 190.
---- ----, remarks on, _N. Bowditch_, xvi, 64.
---- ----, for the United States, _E. Loomis_, xxxiv, 290^f; xxxix,
41^f; xliii, 106.
---- ----, table made from observations at Boston, Falmouth and
Penobscot, xvi, 60.
---- ----, at Providence, R. I., _M. B. Lockwood_, xliv, 314.
---- ----, at Troy, N. Y., xvii, 198.
---- ----, in some parts of New York State, xxxvi, 28.
---- ----, in Connecticut, _G. Gillet_, xxiii, 205.
---- ----, at Yale College, xxx, 221.
---- ----, at Westchester, Pa., observations by _A. D. Bache_,
xxvii, 385.
Magnetism, animal, v, 192; xiii, 175.
----, _Davis's_ Manual of, xliii, 381.
---- of the earth, especially of the arctic regions, _E. Sabine_,
xvii, 145.^f
---- ----, causes of, _B. F. Joslin_, xix, 398.
---- ----, views of _J. Hamilton_, xxxvii, 100.
---- ----, views of _S. L. Metcalf_, xxvii, 153.
---- ----, views of _Rowall_, xli, 41.
---- ----, effect of, on the precipitation of silver, xvi, 262.
---- chemical effects of, viii, 374.
----, supposed influence of, in combinations and crystallizations,
by _O. L. Erdmann_, xviii, 395.
----, influence of, xvi, 262.
----, connexion of, with electricity, iii, 386.^f
----, connexion of, with heat and electricity, _J. F. Dana_, vi, 163.
----, ----, with light, _G. Gibbs_, i, 89.
----, ----, with geology, _J. Locke_, xlvii, 101.
----, conversion of, into electricity, xxii, 386.
----, currents and sparks of electricity from, _J. Henry_, xxii, 403.
----, destroyed by lightning, xii, 382.
----, Gauss's theory of, tested by observations, _E. Loomis_,
xlvii, 278.
----, _Hansteen's_ discovery in, v, 190.
----, influence of heat on, xxii, 361.
---- of soft iron, acquired by induction, retained for some time if
the armature is not removed, xxviii, 63.
----, molecular forces, on the disturbance of, by, _C. G. Page_,
xxxiii, 118.
---- produced by friction, xix, 394.
---- ---- by a stroke of lightning, vi, 394.
---- ---- by voltaic electricity, iii, 383.
---- ---- by the solar rays, xiii, 171.
----, double helix for inducing, _C. G. Page_, xxxv, 261.^f
Magnetization, some phenomena of, _De Nairac_, xxvii, 401.^f
Magneto-electric apparatus, and experiments, _J. P. Emmet_, xxiv, 78^f;
xxvi, 311; xxviii, 331.
---- - ---- ---- ----, _J. Henry_, xxviii, 331.
---- - ---- ---- ----, _E. M. Clarke_, xxxiii, 213.^f
---- - ---- ---- ----, _C. G. Page_, xxxiv, 163^f, 364^f;
xxxv, 112^f, 252^f; xxxvii, 275^f; xlviii, 392.
---- - ---- ----, _O. W. Gibbs_, xxxix, 132.
---- - ---- ---- ----, _J. H. Abbot_, xl, 104.^f
---- - ---- electrepeter, _E. M. Clarke_, xxxiii, 224.^f
---- - ---- ----, _C. G. Page_, xxxv, 112.^f
---- - ---- electrotome, _C. G. Page_, xxxv, 112^f, 253.^f
---- - ----, formula, xxxv, 356.^f
---- - ---- multiplier, _C. G. Page_, xxxvii, 275.^f
---- - ---- shock increased by a long coil, _J. Henry_, xxviii, 331.
---- - ---- ---- increased by passing it through a portion of the
generating magnet, _J. P. Emmet_, xxviii, 331.
Magneto-electricity, _J. Locke_, xxxiv, 125.^f
Magnetometer, new, _A. D. Bache_, xl, 380.
Magnolia grandiflora, xxvi, 314.
Mahogany, artificial, ix, 206.
Mahomet Ali, notice of, xxviii, 30.
Maine, geological reports of _C. T. Jackson_ on, noticed, xxxii, 193;
xxxv, 387; xxxvi, 143; xxxvii, 376.
----, miscellaneous remarks on the geology of, _C. T. Jackson_,
xxxiv, 69;
--actual bituminization of peat, xxxiv, 73.
----, anthracite coal formation of, _C. T. Jackson_, xxxvi, 149.
----, dikes of trap, and metamorphic limestone, _C. T. Jackson_,
xxxvi, 145, 147.
---- iron ore veins, _C. T. Jackson_, xxxvi, 147, 150.
----, changes of level in, _C. T. Jackson_, xxxvi, 154.
----, fossiliferous rocks near Moose river, xxxvii, 378.
Maine, list of some plants in, _J. W. Bailey_, xxxii, 22.
----, minerals of Freyburg and Paris, xviii, 291.
_Mairan_, on the Aurora Borealis, allusion to, xxix, 388; xxxii, 177;
xxxiv, 288, 289.
Maize, from the graves of ancient Peruvians, germination of, ix, 208.
----, sugar from, xliv, 215.
Majorca, notice of a part of, xxvii, 83.
Malachite, in Connecticut, vi, 206, 232.
----, in Massachusetts, i, 115.
----, in New York, viii, 249.
----, in Pennsylvania, i, 236.
----, of Lake Superior copper mines, vii, 45.
Malacrone, a new mineral, xlix, 394.
Malaria, remarks on, xvii, 300; xviii, 339.
----, _T. Hopkins_ on, xxxvii, 196.
---- of the Campagna di Roma, xxii, 336.
Malate of lime, in sumach, _W. B. Rogers_, xxvii, 294.
Malic acid, _J. Liebig_, xxi, 156.
Malva Lecontii, xlv, 176.
---- Nutalloides, xxvi, 313.
---- triangulata, vii, 62.
Mammalia, fossil, in Great Britain, xlvii, 186.
----, see farther under _Zoology_.
Mammoth, first use of the name, xix, 388.
----, see farther under _Zoology_.
---- Cave, Ky., alabaster (gypsum in curved forms) in, _J. Locke_,
xlii, 206.^f
Mandingo, native, from near the river Gambia, account of, xxxv, 305.
Manganese, separation of, from zinc, xlvii, 194; xlviii, 187.
----, commercial value of its ores, how ascertained, _E. Turner_,
xxi, 364.
----, electricity of peroxide of, xxx, 179.
----, examination of the peroxide of, _H. C. Lea_, xlii, 81.
----, two sulphates of, xvi, 383.
---- ores, analyses of, _P. Berthier_, vii, 366.
---- ores, method of assaying, xxviii, 146.
---- ----, in Connecticut, phosphate, xiii, 196.
---- ores, in Maryland, iv, 283; xxvii, 20, 33.
---- ----, in Massachusetts, ii, 374; iv, 54, 189; vii, 253;
viii, 30, 233; ix, 42; xxii, 61;--siliceous, vii, 251; ix, 22;
xxii, 62.
---- ----, in New York, xlvi, 28.
---- ----, in N. Carolina, v, 258.
---- ----, in Nova Scotia, xv, 157.
---- ----, in Pennsylvania, iv, 38; xiv, 4, 12.
---- ----, in Rhode Island, viii, 231; ix, 248; xl, 185;
--ferro-silicate, with a figure, _C. U. Shepard_, xvii, 142.^f
---- ----, in Virginia, iii, 245.
Manilla hemp, account of, xxi, 29; xli, 200.^f
_Mantell, G. A._, museum of, xxiii, 162^f; xxviii, 194.
----, ----, specimens from, noticed, xxviii, 197.
----, _C. Lyell's_ remarks at the presentation of the Wollaston medal
to, xxviii, 391.
----, presentation of a microscope to, xliii, 206.
----, description of some fossil fruits, xlv, 401.
----, discovery of the Iguanodon, xxvii, 355.^f
----, notice of molluskite, xlv, 243.
----, on the geological age of reptiles, xxi, 359.
----, on the Unionidæ of the country of the Iguanodon, xlvii, 402.^f
----, on Zoophytes, xxxiii, 329.
----, Wonders of Geology, review of, xxxiv, 387; xxxix, 1.
----, letter to _J. Deane_, xlv, 189.
----, Medals of Creation, review of, xlviii, 105.
Manufactories of Lowell, xxvii, 346.
----, limitation of the labor of children in, xii, 194.
Manures, action of, _De la Giraudieu_, xxvi, 179.
----, action of gypsum in, xxvi, 181.
----, marl for, from Chesapeake Bay, xx, 411.
----, ----, from New Jersey, _J. Pierce_, vi, 237.
----, remarks on calcareous, xxx, 138, 383.
----, use of muriate of lime for, ix, 194.
Map of Maryland, 1835, xxx, 393; xxxii, 191.
---- of mountains, iii, 364.
Maps, on contoured, _Larcom_, xlvi, 394.
----, a mode of illustrating criminal statistics by, xxxi, 379.
Mapping instrument, xx, 159.
Maranta arundinacea, v, 302.
Marble, Carrara, an altered oolite, xxx, 176.
----, and flagstones, strength of, _E. Hodgkinson_, xliv, 168.
----, durability of, as compared with granite, xv, 168.
----, in Massachusetts, white, iv, 40; viii, 14; xxii, 28.
----, ----, clouded, viii, 14.
----, ----, dove colored, viii, 14.
----, ----, elastic, of Lanesboro' and West Stockbridge, viii, 15.
----, ----, ---- and flexible, of Berkshire, Co., ix, 241.
----, ----, tortuous layers of, viii, 28.
---- in Vermont, xxxv, 390.
---- in Connecticut, ii, 141, 165, 219, 222.
---- ----, verd antique in Connecticut, ii, 165.
---- in New York, at Hudson, transition, vi, 371.
---- ----, in the Stonybrook Mts., v, 29.
---- ----, serpentine, v, 29.
----, Potomac breccia, xxvi, 221; xxvii, 22.
----, of Maryland, xxvii, 24, 27.
---- ----, white, of Hagerstown, v, 264; xxvi, 222.
---- in Kentucky, iii, 234.
---- in Missouri, iii, 23.
----, yellow, of Tabriz, xxxvii, 355.
_Marcet, F._, influence of the moon on the weather, xxvii, 192.
----, boiling point in vessels of different materials, xlvii, 190.
Mariner's compass, the invention of, _A. Humboldt_, xl, 242.
Marl, apparatus for analyzing, _W. B. Rogers_, xxvii, 299.^f
---- from Farmington, Ct., analysis of, _E. Hitchcock_, xxxvi, 176.
---- in New York, iii, 237.
---- for manure, from near the Chesapeake Bay, xx, 411.
---- of New Jersey, identical with the chalk of England, _S. G. Morton_,
xxii, 90.
---- ---- ----, analysis of, xvii, 277.
---- ---- ----, on the application of, to agriculture, _J. Pierce_,
vi, 237.
----, shell, in Maryland, xxvii, 3.
---- beds of Virginia, xi, 54.
---- pits, in N. Carolina, organic remains of, _H. B. Croom_,
xxvii, 168.
---- from Ashley river, S. C., composition of, _J. L. Smith_,
xlviii, 101.
---- ---- ---- infusorial character of, _J. W. Bailey_, xlviii, 102.
---- in Wayne Co., Ohio, xxxi, 55.
----, red calcareous, in Texas, _J. L. Riddell_, xxxvii, 211.
Marmalite, description and analysis of, _T. Nuttall_, iv, 17, 19.
_Marsh, R._, meteorological register, xlix, 212.
Marsupial fossils of the Stonesfield slate, xxvii, 412; xxxvii, 228.
---- ----, see under _Zoology_.
Martha's Vineyard, notices of geology of, vii, 240.^f
---- ----, ibid, _C. Lyell_, xlvi, 318.
_Martin, A. St._, account of the opening into his stomach, and
experiments on the gastric juice of, _W. Beaumont_, xxvi, 194.
_Martin, J._, on the central forces of bodies revolving about fixed
axes, xxxix, 262.^f
_Martius, C. F. P. von_, on the spiritual life of plants, xl, 170.
----, works of, noticed, xlv, 217; xlviii, 207.
Maryland, Bare Hills, near Baltimore, _H. H. Hayden_, xxiv, 349.^f
----, minerals of, _G. W. Carpenter_, xiv, 1.
----, ---- of Baltimore and Harford Cos., _P. T. Tyson_, xviii, 78.
----, chromic iron of, iv, 321; xxiv, 349, 355; xxvii, 18, 20.
----, Appalachian chain in, _W. E. A. Aikin_, xxvi, 219.^f
----, notice of the Geological Report and Map of, _J. T. Ducatel_ and
_J. H. Alexander_, xxvii, 1; xxx, 393; xxxii, 191.
----, Mastodon longirostris in, xliii, 143.
----, caves in, containing saltpetre, xxvii, 33.
----, coal in, _J. T. Ducatel_ and _J. H. Alexander_, xxvii, 29.
----, ----, chemical analysis of, ibid, xxvii, 31.
----, tertiary fossils of, _I. Lea_, xxv, 422.
----, infusoria in, xlvi, 137^f; xlviii, 201, 330.^f
_Mason, E. P._, micrometric measures of eclipse of the sun, Sept. 1838,
xxxv, 174.
----, on some nebulæ, xl, 37.
----, obituary notice of, xl, 407; xliii, 381.
_Mason, O._, chemical examination of the bark of the white birch,
xx, 282.
Masonite, description and analysis of, _C. T. Jackson_, xl, 186.
----, composition of, xlviii, 218.