Part 23

Meteorological observations, North American, in Canada, at Montreal, _J. S. McCord_, for 1836-1840, xli, 330. ---- ----, ----, at Newfoundland, _W. C. Redfield_, xxxviii, 265, 269. ---- ----, ----, New England, ancient, xliii, 398. ---- ----, ----, in Connecticut, at New Haven, 1766, 1767, xxviii, 183. ---- ----, ----, ibid, for 1827, _D. Olmsted_, xiv, 176. ---- ----, ----, ibid, for 1828, _D. Olmsted_, xvi, 70. ---- ----, ----, in Cuba, at San Fernando, _J. H. Blake_, xlii, 292. ---- ----, ----, in Cuba, at Matanzas, 1832-33, _A. Mallory_, xxvi, 89; 1835, xxxi, 287. ---- ----, ----, in U. States, at different military posts, by surgeons of the army, xii, 149. ---- ----, ----, in New England, in the years 1741 to 1757, _J. Winthrop_, xl, 204. ---- ----, ----, in Florida, 1833, _H. B. Croom_, xxv, 69. ---- ----, ----, in Georgia, 1832-33, _W. H. Williams_, xxv, 211. ---- ----, ----, ----, 1833-34, xxvii, 173. ---- ----, ----, in Indiana, _D. D. Owen_, xxix, 294. ---- ----, ----, in Louisiana, at New Orleans, 1833-1836, _Barton_, xxxi, 400. ---- ----, ----, ----, at Jackson, 1839-1841, _W. M. Carpenter_, xliv, 49. ---- ----, ----, in Michigan, at Sault de St. Marie, _L. Foot_, ix, 171. ---- ----, ----, in Missouri, at St. Louis, xxxii, 386. ---- ----, ----, in Massachusetts, at Deerfield, _E. Hitchcock_, iv, 333. ---- ----, ----, ----, at Westfield, 1825, xii, 119. ---- ----, ----, ----, at Boston, 1820-29, xx, 264. ---- ----, ----, ----, at New Bedford, 1830, xx, 162; 1831, xxii, 188. ---- ----, ----, in New Hampshire, at Dartmouth College, xxviii, 179. ---- ----, ----, in New York, 1833-34, _W. C. Redfield_, xxviii, 154. ---- ----, ----, ----, in N. Y. city, 1838 and 1839, with the mean results for the last seven years, _W. C. Redfield_, xxxviii, 323. ---- ----, ----, ----, for May, 1834, at Cazenovia, _J. Johnston_, (therm., winds, weather,) xxvi, 398. ---- ----, ----, ----, at Brooklyn, for 1829, xvii, 409. ---- ----, ----, ----, at Penn Yan, 1834, _H. P. Sartwell_, xxviii, 187. ---- ----, ----, New Jersey, at Middletown, _J. F. Jenkins_, 1831, 1832, xxii, 394; 1832-34, xxvi, 395. ---- ----, ----, in North Carolina, at Chapel Hill, _D. Olmsted_, x, 294. ---- ----, ----, in Ohio, kept at Marietta, _S. P. Hildreth_, 1826, xii, 213. ---- ----, ----, ----, ibid, 1827, xiv, 63. ---- ----, ----, ----, ibid, 1828, xvi, 44. ---- ----, ----, ----, ibid, 1829, xviii, 368. ---- ----, ----, ----, ibid, 1830, xx, 126. ---- ----, ----, ----, ibid, 1831, xxii, 109. ---- ----, ----, ----, ibid, 1832, xxiv, 132. ---- ----, ----, ----, ibid, 1833, xxvi, 84. ---- ----, ----, ----, ibid, 1834, xxviii, 160. ---- ----, ----, ----, ibid, 1835, xxx, 56. ---- ----, ----, ----, ibid, 1836, xxxii, 95. ---- ----, ----, ----, ibid, 1837, xxxiv, 132. ---- ----, ----, ----, ibid, 1838, xxxvi, 78. ---- ----, ----, ----, ibid, 1839, xxxviii, 273. ---- ----, ----, ----, ibid, 1840, xl, 345. ---- ----, ----, ----, ibid, 1841, xlii, 344. ---- ----, ----, ----, ibid, 1842, xliv, 347. ---- ----, ----, ----, ibid, 1843, xlvi, 277. ---- ----, ----, ----, ibid, 1844, xlviii, 287. ---- ----, ----, ----, at Western Reserve College, Sept.-Nov., 1838, _E. Loomis_, xxxvi, 166. ---- ----, ----, ----, at Hudson, for the years 1838, 1839, 1840, _E. Loomis_, xli, 310. ---- ----, ----, ----, ibid, 1841-1844, xlix, 266. ---- ----, ----, ----, at Steubenville, 1844, _R. Marsh_, xlix, 212. ---- ----, ----, in Oregon, or west of the Rocky Mountains, _A. Eaton_, from _J. Ball_, xxv, 351. ---- ----, ----, ----, at Fort Vancouver, _J. Ball_, 1832, '33, xxviii, 9. ---- ----, ----, in Vermont, Fayetteville, _M. Field_, xii, 364; xvi, 288; xviii, 366; xx, 261^f; xxii, 298; xxiv, 361. ---- ----, ----, in Wisconsin, at Fort Winnebago, xxx, 13. ---- ----, South American, in Colombia, 1820, 1830, _R. Wright_, xxxvii, 1. ---- ----, ----, at Rio Janeiro, _J. Gardner_, xlvii, 290. ---- ----, at sea, on a voyage from Liverpool to New York, v, 137. ---- ----, ----, on board the United States ship Peacock, _W. S. W. Ruschenberger_, xxxiii, 345. ---- ----, ----, on board the United States ship Erie, 1834, between New York and Rio Janeiro, xxix, 237. ---- ----, (electro-) _J. Swaim_, xxxii, 304.^f ---- ----, see farther, _Floral calendar_. ----, tables, _J. de Wallestein_, ix, 394.

Meteorology, _J. D. Forbes_ on the progress of, xl, 318.

Metre, French, compared with an English yard, xxi, 382.

Mexican Andes, ascent of Popocatepetl, xxviii, 220.

Mexico, geological character, climate, uses of obsidian, &c. in, xvi, 160. ----, geological remarks relating to, _W. Maclure_, xx, 406. ----, discovery of mummies near Durango, xxxvi, 200. ----, silver mines of, xxiv, 226. ----, meteoric iron at Charcas, xxviii, 288.

Mica, containing potash and lithia, xxxvii, 356. ----, analyses of lepidolite and a yellow, xxxvii, 361. ----, of Chester, Mass., crystallization of, viii, 250.^f ----, use of, in chemical analyses, xxiv, 373. ----, black, a substitute for glass in spectacles, xviii, 374. ----, models of crystals made of, xxxviii, 187. ----, in Canada, viii, 67. ----, in Connecticut, i, 353;--plumose, vi, 251. ----, in Massachusetts, i, 113; ii, 237; iv, 55 (green); vii, 255; viii, 41, 235;--prismatic, v, 399; vii, 30, 255; viii, 41; xiv, 219; --rose, i, 350; v, 265. ----, in New Hampshire, v, 40; xvii, 357. ----, in New Jersey, v, 246; vi, 250. ----, in New York, iv, 37; v, 29; ix, 40, 251; xxi, 326. ----, in Pennsylvania, ix, 45; xiv, 5, 13. ----, in Virginia, v, 257. ----, slate, association with granite, in Massachusetts, and relative age, vi, 4. ----, ----, varieties in the Connecticut valley, vi, 22. ----, ----, minerals of, vi, 24. ----, ----, in western Massachusetts, viii, 6, 240. ----, ----, relation to gneiss, viii, 6. ----, ----, conglomerated, in Windsor, Mass., viii, 7. ----, ----, contorted, viii, 253. ----, ----, minerals of, viii, 7. ----, ----, alternations with granular limestone, ii, 211; viii, 15, 240, 252. ----, ----, containing rounded pebbles of quartz, in Massachusetts, viii, 244.

Mice, habits of, xlvi, 242.

_Michaux, André_, notice of, _A. Gray_, xlii, 2. ----, notice of his botanical labors, ix, 266. ----, the younger, notice of, xlii, 10.

Michigan, notice of the peninsula of, in relation to its topography, scenery, agriculture, population, resources and productions, _J. Pierce_, x, 304. ----, Indians of, _J. Pierce_, x, 313. ----, rocks of, xl, 136. ----, mining region of, _D. Houghton_, xli, 183. ----, Geological Reports on, of _D. Houghton_, noticed, xxxiv, 190; xl, 136. ----, geological and mineralogical observations on the northwest portion of Lake Huron; _J. I. Bigsby_, iii, 254.^f ----, geological and mineralogical observations of the region about Fort Winnebago, _D. Ruggles_, xxx, 1.^f ----, native copper and ores of, _D. Houghton_, xli, 185; xlv, 331, 332. ----, ---- ---- ibid, _D. Ruggles_, xlix, 64.^f ----, ---- ----, of Lake Superior, _H. R. Schoolcraft_, iii, 201.^f ----, ---- ---- and silver, of Kewenaw Point, _C. T. Jackson_, xlix, 81. ----, Lake, height of, xlv, 16; xlvi, 259, 260.

Microlite, _C. U. Shepard_, xxvii, 361; xxxii, 338; xliii, 116; xlviii, 176. ----, identical with pyrochlore, _J. E. Teschemacher_ and _A. A. Hayes_, xliii, 33. ----, reply to, ibid, by _C. U. Shepard_, xliii, 116; xlviii, 176. ----, analysis of, _A. A. Hayes_, xlvi, 158.

Micrometers, artificial spider's web for, xv, 183.

Microscope, on improvements in, _E. Thomas_, xix, 57.^f ----, on the achromatic, _E. Thomas_, xx, 265.^f ----, monochromatic lamp of _D. Brewster_ for, vii, 363. ---- and microscopical observations, notice of, xli, 205.

Microscopic life, see _Infusoria_, and _Zoology_.

Migration of birds, note on, x, 192. ---- ----, of North America, _J. Bachman_, xxx, 81.

Mildew, prevention of, iii, 385.

Milk, mode of preserving indefinitely, xviii, 152. ----, use of, in dropsy, xxiv, 209. ----, facts from _Barruel_ respecting the milk sold in Paris, xvii, 378.

Milk tree of Venezuela, xix, 373.

Milking, principle of the balance applied to, _H. Strait_, xxvii, 92.^f

Milkweed, Asclepias Syriaca, a substitute for flax, xxvii, 384. ----, on the fibre of, xxviii, 380.

_Miller, E._, canals of Pennsylvania, xxv, 84; xxvi, 108. ----, on tracing oval arches, xxii, 303.^f

Millet's smoke disperser, xvii, 164.

Milo, catacombs of, xvi, 331.^f ----, caves of, containing alum, xvi, 334.

Mines, depth of different, xxix, 374. ----, wire ropes for deep, xxxv, 319. ----, general remarks on the positions of, _Taylor_, xxxiv, 9. ---- of Pasco, S. A., xvii, 43.^f ---- of the Hartz, and mode of working, xix, 113. ---- of Idria, xxix, 219. ---- of Michigan, position of, _D. Houghton_, xli, 183. ---- of Russia, see under _Russia_. ---- of Spain, xxviii, 17, 21, 144. ---- of Tokat, xxxvii, 352. ----, see farther, under names of _Countries_, _Metals_ and _Minerals_.

Minerals, new fluids in cavities of, detected by _D. Brewster_, xii, 214. ----, optical structure of, ix, 384. ----, specific gravities of various, _Breithaupt_, xxxi, 268. ----, Hosack's donation of, iv, 396. ----, pseudomorphous, account of, xlviii, 66, 81. ---- of trap, origin of, _J. D. Dana_, xlix, 49. ---- of volcanic rocks, iv, 212, 215. ----, zeolitic, not formed at the formation of the containing rock, _J. D. Dana_, xlv, 116, 145. ----, ----, rendered hydrous bysteam of eruption, _H. D. Rogers_, xlv, 147. ----, in London, prices of, v, 169. ---- of Europe, value of, xxix, 368. ---- of North America, their analogy with those of northern Europe, _W. Meade_, xii, 303. ----, _Foreign_. ---- of a cavern, upon Bosjesman river, southern Africa, xxviii, 290. ---- of Ceylon, vi, 192. ---- of Greece, xxxiii, 207. ----, oriental, from Sardis, _F. Hall_, xxxiii, 249; Pergamos, 250; Smyrna, 250; Ephesus, 251; Thyatira, 251; Samos, 252; Syra, 253. ----, ----, _Robertson_, xxxiii, 255. ---- found in the Hartz, xix, 112. ---- of New Holland, _F. Alger_, xxxix, 157.^f ---- from Palestine, ix, 337; x, 21. ---- of Peru, San Lorenzo, selenite, calc spar, &c., xxxviii, 201. ---- of Sicily, viii, 203. ----, saline, of the plains of Tarapaca, _J. H. Blake_, xliv, 2. ---- of Vesuvius, account of, from _Monticelli's_ treatise, xii, 185. ----, _North American_. ----, ----, proposed as new, shown to be identical with other species previously known, xlvi, 384. ----, ----, in Alabama, _E. Cornelius_, i, 214, 317. ----, ----, in Canada, _J. I. Bigsby_, v, 205; viii, 60. ----, ----, of northern America, and the vicinity of Hudson's Bay, xvii, 12. ----, ----, of Nova Scotia, _F. Alger_, xii, 227. ----, ----, ----, _Jackson_ and _Alger_, xiv, 305; xv, 132, 201. ----, ----, ----, examined by a party from Williams College, xxx, 330. ----, ----, of Connecticut, Litchfield Co., gneiss range, _J. P. Brace_, i, 351. ----, ----, ----, New Haven and vicinity, _B. Silliman_, ii, 201. ----, ----, ----, _T. D. Porter's_ localities of, with a map, ix, 177. ----, ----, ----, various localities, _C. U. Shepard_, xxxiii, 155. ----, ----, ----, at Stonington, _W. W. Rodman_, xxxv, 179. ----, ----, of Delaware, x, 223. ----, ----, ----, _G. W. Carpenter_, xiv, 1. ----, ----, of Illinois, Shawneetown, i, 52; ii, 176; iii, 244, 367. ----, ----, of Indiana, _W. B. Stilson_, i, 131. ----, ----, of Kewenaw Point, Lake Superior, _C. T. Jackson_, xlix, 86. ----, ----, of Maine, Freyburg and Paris, xviii, 291. ----, ----, of Maryland, _G. W. Carpenter_, xiv, 1. ----, ----, ----, Baltimore and Harford Cos., _P. T. Tyson_, xviii, 78. ----, ----, ----, Bare Hills, _H. H. Hayden_, xxiv, 349.^f ----, ----, of Massachusetts, localities of, in part, _C. Dewey_, i, 337; viii, 1. ----, ----, ----, ibid, _E. Hitchcock_, i, 112, 201; vi, 201; vii, 30; xiv, 215. ----, ----, ----, Chesterfield and Goshen, _G. Gibbs_, i, 346. ----, ----, ----, Hampshire Co., _A. Nash_, xii, 238. ----, ----, ----, Charlestown quarries, _J. E. Teschemacher_, xxxviii, 194. ----, ----, of Mississippi, _E. Cornelius_, i, 214, 317. ----, ----, of Missouri, iii, 24, 59, 67, 71; xii, 376, 379; xliii, 35; xlv, 340. ----, ----, of New Hampshire, _J. F. Dana_, vi, 245. ----, ----, ----, _C. U. Shepard_, xvii, 353; xviii, 126. ----, ----, ----, _O. P. Hubbard_, xxxiv, 105. ----, ----, ----, _C. T. Jackson_, xlix, 33. ----, ----, of New Jersey, at Patterson and Sparta, with geological remarks by _T. Nuttall_, v, 239. ----, ----, ----, at Hoboken, i, 49, 54. ----, ----, ----, at Hoboken, _T. Nuttall_, iv, 16. ----, ----, ----, various, ix, 244; xxi, 321; xxxvi, 107; xl, 69; xliv, 54. ----, ----, ----, Bergen Hill, account of, _W. O. Bourne_, xl, 69. ----, ----, ----, near New Brunswick, copper ores, &c., _L. C. Beck_, with analyses of native copper, red oxide, bisilicate, and gray sulphuret of copper, xxxvi, 107. ----, ----, ----, in Sussex Co., _S. Fowler_, xxi, 319. ----, ----, ----, ----, _C. U. Shepard_, with a map, xxi, 321. ----, ----, of New York, some account of, in review of the Report of _L. C. Beck_, xlvi, 25.^f ----, ----, ----, secondary region of, _J. Pierce_, ii, 181. ----, ----, ----, of the highlands of, _J. Pierce_, v, 27. ----, ----, ----, at Boonville, _O. P. Hubbard_, xxxii, 234. ----, ----, ----, in St. Lawrence Co., _J. Finch_, xix, 220. ----, ----, ----, in St. Lawrence and Jefferson Cos., _J. B. Crawe_ and _A. Gray_, xxv, 346. ----, ----, ----, in Orange Co., _C. U. Shepard_, with a map, xxi, 321.^f ----, ----, ----, in Scoharie Co., _J. Gebhard_, xxviii, 172.^f ----, ----, ----, of Warwick, _S. Fowler_, ix, 242. ----, ----, in North Carolina, _D. Olmsted_, v, 257. ----, ----, ----, and South Carolina, _J. Dickson_, iii, 1. ----, ----, ----, in Carolina, _T. D. Porter_, iii, 227. ----, ----, ----, North, Davidson Co., _J. C. Booth_, xli, 348. ----, ----, in Ohio, _S. P. Hildreth_, xvi, 154. ----, ----, ----, Belmont Co., i, 227. ----, ----, in Pennsylvania, Chester Co., _G. W. Carpenter_, xiv, 1; --Bucks Co., 12; Philadelphia Co., 14. ----, ----, ----, vicinity of West Chester, _J. Finch_, xiv, 15. ----, ----, in Rhode Island, _S. Taylor_, vi, 245. ----, ----, ----, near Providence, _J. H. Webb_, iv, 284. ----, ----, in Vermont, _E. Hitchcock_, i, 105. ----, ----, ----, _F. Hall_, vii, 58. ----, ----, ----, _A. A. Hayes_, xiii, 195. ----, ----, ----, Brattleboro', _J. A. Allen_, iii, 76. ----, ----, ----, Marlboro' and New Fane, _C. U. Shepard_, xvii, 353. ----, ----, of part of Virginia and Tennessee, _J. H. Kain_, i, 60. ----, ----, of parts of Virginia, Tennessee, Alabama and Mississippi, with geology of the same, _E. Cornelius_, i, 214, 317. ----, ----, see farther, under the names of the several _Minerals_, _Ores_, or _Metals_. ----, artificial, sulphate of lime with half an atom of water, _J. F. W. Johnston_, xxxv, 300. ----, ----, produced by heat, x, 190. ----, ----, oxide of iron about furnaces, xxxvi, 237. ----, ----, feldspar, xxviii, 396. ----, cabinet of, given by Baron de Schutz to the school at Landshut, v, 193. ----, ----, a large, for sale, ii, 169.

Mineral resins from peat mosses--Tekoretin, Phylloretin, Xyloretin, Balloretin, _G. Forchhammer_, xli, 402. ---- springs, see _Springs_. ---- veins, remarks on, with the views of _R. W. Fox_, xxxiii, 93; _I. Fournet's_ views, 94. ---- ----, questions on, _R. W. Fox_, xxxiii, 135. ---- waters, artificial, _S. Morey_, iii, 94. ---- ----, native, see _Springs_. ---- wax, a new species, _M. Prinsep_, xviii, 165.

Mineralogical hammer, new, _E. Hitchcock_, vii, 175.^f ---- systems, W. Whewell on, xliv, 214.

Mineralogy, _P. Cleaveland's_ Treatise on, noticed, i, 35. ----, ----, ibid, 2d edition announced, v, 404. ----, review of _C. U. Shepard's_, xxii, 395; xxviii, 374; xlvii, 333. ----, ibid _F. Alger's_, xlvii, 333. ----, ibid _J. D. Dana's_, xxxii, 387; xlvi, 362.^f

Mining company, the Muskingum, xxv, 224. ---- industry of Spain, _F. le Play_, xxviii, 17.

Mint, projected branch, of North Carolina, xx, 401. ----, gold coinage, amount of, in the United Stales, xx, 403. ----, amount of gold deposited at, xx, 404.

Mirror, metallic, found by the precipitation of silver from the oxide, xlix, 398.

Mississippi, mounds of, _R. C. Taylor_, xxxiv, 97. ---- valley, _L. Bringier_, iii, 15; --banks of the Mississippi, 16; driftwood of the Achafalaya, Red river, 17; earthquakes and eruptions, 20; fossil remains of mastodon, 22; marble and other mineral productions, 23. ----, ----, _L. Bringier_, lead mines, iii, 24; iron ores, 26; cove of Wachitta, 26, 28; alum slate, 28; salt, sandhills, 27; hot springs of Wachitta, 29; Indians, 30; mounds, 36. ---- ---- and the lakes, _J. B. Gibson_, xxix, 201. ---- ----, _H. King_, xlvii, 128. ---- ----, lower part of, _R. Nutt_, xxiii, 49. ----, mineralogy and geology of, _E. Cornelius_, i, 317. ----, Upper, polythalamia of, _J. W. Bailey_, xli, 400. ---- river, elevation of banks of, 1811, _F. C. Usher_, xxxi, 294.^f ---- ----, velocity of, vii, 174. ---- ----, headwaters, botany of, _D. B. Douglass_ and _J. Torrey_, iv, 56. ---- waters, medical effects of, viii, 396.

Missouri, lead region of, _H. R. Schoolcraft_, iii, 248. ----, ---- ----, ores, _Troost_ and _Lesueur_, xii, 379. ----, ---- ----, _J. N. Nicollet_, xlv, 340. ----, ---- ----, _J. T. Hodge_, xliii, 35.^f ----, ---- mine of la Motte, ore not argentiferous, xliii, 64. ----, native carbonate of lead in, xii, 379. ----, cobalt ores, xii, 378. ----, cretaceous formation of, _J. N. Nicollet_, xli, 180; xlv, 153. ----, Indian mounds or fortifications in, iii, 36. ----, ---- ----, _R. C. Taylor_, xxxiv, 89. ----, contributions to the botany of, _L. C. Beck_, x, 257; xi, 167; xiv, 112.

_Mitchell, E._, on the effect of quantity of matter in modifying the force of attraction, xvi, 234. ----, on the geology of the gold region of North Carolina, xvi, 1.^f ----, North Carolina, character and origin of the low country of, xiii, 336. ----, on the proximate causes of winds and storms, xix, 248.^f ----, Protogæa of _Leibnitz_, xx, 56. ----, on storms and meteorological observations, xx, 361. ----, on Welther's tube of safety, xvii, 345.^f

_Mitchell, J._, on the ignis fatuus, xvi, 246.

_Mitchell, J. K._, on the liquefaction and solidification of carbonic acid, xxxv, 346.^f

_Mitchell, T. D._, carbonic oxide obtained free from carbonic acid, xxv, 344.

_Mitchell, Wm._, on the tails of comets, xxxviii, 35; xl, 59. ----, magnetic dip at Nantucket, xlvi, 157.

_Mitchill, S. L._, conditions of the growth of plants on living animals, xii, 21. ----, on the Mus bursarius or pouched rat, of Canada, iv, 183. ----, on the Proteus of the N. A. Lakes, iv, 181. ----, on a group of polyps, v, 46. ----, a new Raja, ix, 290. ----, Zeus crinitus, xi, 144.^f ----, spoonbill sturgeon, xii, 201.^f ----, new reptiles of North America, vii, 63. ----, on the eatable clam of New York, x, 287. ----, facts showing that two-headed snakes are monsters, x, 48. ----, history of sea-serpentism, xv, 351. ----, notice of his edition of Cuvier's essay on the theory of the earth, i, 68. ----, obituary notice of, xxvii, 149.

_Mitscherlich_, formation of specular iron about volcanoes, xxxvi, 237. ----, on fuming nitric acid, xx, 185.

_Mohs, F._, obituary notice of, xl, 220.

Molasses from the potato, xxi, 93.

Mole, natural history of, xvii, 386. ----, carnivorous, _S. Woodruff_, xxviii, 168.

Molecules, Brown's active, xvii, 390. ----, forms and nature of crystalline, _J. D. Dana_, xxx, 275.^f

Molecular attraction, _J. Henry's_ experiments on, with soap bubbles, xlviii, 215.

_Moll, G._, experiments in electro-magnetism, xix, 329; xxvi, 177.

Mollusca, see under ZOOLOGY.

Molluskite, _G. A. Mantell_, xlv, 243.

Molybdenite, analysis of, _H. Seybert_, iv, 320. ----, in Connecticut, i, 242; vi, 235; viii, 194. ----, in Maine, x, 17. ----, in Maryland, xxvii, 20. ----, in Massachusetts, i, 238; v, 268; vi, 235; vii, 58; viii, 58; ix, 55; xiv, 217; xxxiii, 400. ----, in New Jersey, v, 401. ----, in New York, vii, 57. ----, in Pennsylvania, v, 41. ----, in Rhode Island, viii, 231.

Monarda allophylla, iv, 56. ----, Bradburiana, x, 260. ----, scabra, x, 260.

Money cowry, xxxii, 250.

Monophane, xxvi, 388.

_Montague, G._, notice of, xxxvii, 162.

Monsoons, remarks on, _W. C. Redfield_, xxv, 124. ----, character and causes of, _W. C. Redfield_, xxxiii, 63.

Monte Video, Connecticut, scenery of, vii, 5. ----, in South America, xxix, 240.

Monticellite, xxvi, 388.

_Montlosier, Count_, notice of, xxxvii, 121.

Monuments, public, in the United States, xviii, 229.

Monument to Copernicus, in Warsaw, iv, 387. ---- of Pultowa, iii, 379. ---- to Cuvier, xxiii, 309.

Monumental inscriptions, on the writing of, xvii, 271.

Moodus noises at East Haddam, Ct., xxix, 364; xxxix, 336.

Moon, volcanoes of, v, 176; xxxv, 305. ----, action of, on the atmosphere, deductions respecting, xv, 174. ----, influence of, on the weather, _F. Marcel_, xxvii, 192. ----, heat in rays of, ii, 329; xl, 315. ----, singular appearance of, xxii, 375. ----, halo, West Point, xx, 299.

Moon's mean motion, secular acceleration of, _J. H. Coffin_, xlvii, 324.^f

_Moore, N. F._, ancient mineralogy, notice of, xxviii, 188.

Morbid animal products, chemical examination of, _J. F. Dana_, iv, 149.

_Mordecai, A._, experiments on gunpowder, xlix, 180.

_Morey, S._, on artificial mineral waters, iii, 94. ----, on heat and light, ii, 118, 122. ----, bubbles blown in melted rosin, ii, 179. ----, on the patent water-burner, vii, 141. ----, revolving steam engine, i, 157.^f ----, observations on combustion, xxv, 146. ----, explosive engine, xi, 104.

Morey's steam engine, _J. Doolittle_, ii, 101.^f ---- ---- ----, _Sullivan_, ii, 106.^f

_Morgan, H. K. G._, galvanic means of blasting, xxxviii, 33.

_Morin, P. E._, laws of meteorological phenomena, xl, 402. ---- solicits meteoric information from America, xlii, 202. ----, theory of the universe, xxxi, 160.

Morphine, preparation of, xvii, 384; xxiii, 190. ----, and its salts, new method for, xli, 51. ----, test for, viii, 381. ----, action of, with iodic acid, xx, 184. ----, sulphate of, results of experiments on, _W. Tully_, xxi, 39.

_Morris, Miss M. H._, on the Hessian fly, xl, 381.

_Morse, S. F. B._, account of the twilight bow, xxxviii, 389. ---- electro-magnetic telegraph, xxxiii, 185.^f ----, two electrical currents over the same conductor without interference, xliv, 418.^f ----, experiments with Grove's battery, xlv, 390.^f

Mortality, observations on bills of, _J. Mease_, xli, 306. ---- of infants in France, xix, 192. ----, effect of ventilation on, xxvii, 79.

Mortar, iv, 373. ----, _W. H. Wright_, on, xlix, 379.

_Morton, J._, ancient mound near Wheeling, Va., vi, 166.