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