IKDEX. 



679 



M'Andrew, Mr., on scarcity of fish-bones on 



sea-bottom, 455. 

 MacCuUoch, Dr., on age of Arran granite, 584. 



, on altered rock in Fife, 481. 



, on basaltic columns in Skye, 483. 



, on denudation. 67. 



, on granite of Aberdeenshire, 5C5. 



, on bornblende-scliist, 596. 



, on igneous rocks of Scotland, 483. 



, on isle of Skye, 36. 



, on overlying rocks, 8. 



, on parallel roads, 87. 



, on trap-vein in Argyleshire, 477. 



Maclaren, Mr., on erratic blocks in Pentlands, 



131. 

 Maclure, Dr., on volcanoes in Catalonia, 531. 

 Maclurea Logani, Silurian, 446. 

 Macropus atlas, 162; jaw of, 162; tooth of, 



163. 



major (recent), jaw of, 162. 



Madeira, structure of, 511-518. 



..,., trachyte overlying basalt in, 522. 



view of dike in inland valley in, 476, 



Masstricht beds, 237. 



Magnesian limestone, concretionaiy structure 



of, 37. 

 .... defined, 13. 



groups, 350. 



Maidstone, fossils in white chalk of, 250. 

 Mammalia, extinct, above drift in United States, 



143. 

 „, .., extinct, of basin of Mississippi, 121. 



, fossil teeth of, 166. 



Mammat, Mr., cited. 69. 



Mammifer in Purbeck beds, 295, 457. 



in Stonesfield oolite, 311. 



in trias near Stuttgart, 341. 



Mcmimoth, tooth of, 165. 



Mansfield in Thuringia, Permian formation at, 



356. 

 Mantell, Dr., cited, 242, 262, 264, 286. 



, on belemnite, 805. 



, on chalk-flints, 286. 



...., on Brighton elephant-bed, 287. 



. . . ., on freshwater beds of Isle of Wight, 209. 



, on iguanodon, 260. 



, on Avealden group, 259, 286. 



, on reptile in old red, 413, 589. 



Mantellia megalophylla, Purbeck, 296. 

 Map to illustrate denudation of Wi'ald, 271. 



of eocene beds of Central France, 195. 



Marble defined, 12. 



Marl defined, 13. 



.... in Lake Superior, 36. 



, red and green in England, 335. 



Marl-slate defined, 13. 

 Marswpites Milleri, chalk, 245. 

 Martin, Mr , cited, 280. 



, on cross fractures in chalk. 274. 



Martins, Mr. C, on glaciers of Spitzbergen, 142. 

 Massachusetts, plumbago in, 596. 

 Mastodon angustldens, tooth of, 165. 

 Mastodon giganteus, in United States, 143. 

 Mastodonsaufxis, tooth of, 338. 

 Mayence basin tertiaries, 190. 

 May Hill, Silurian strata of, 431. 

 Mediterranean and Ked Sea, distinct species in, 



100. 



, deposits forming in, 99. 



Megalodon eucullatus, 423. 

 ileQatheriuin, tootii of S. America, 167. 

 Melania inquinata, 29, 220 ; M. tiirritissima, 



208. 

 3fela/nopsis Imecinoidea (recent), 29. 

 Mclaphyre, or black porphyry, 473. 

 Menai Straits, marine shells in drift, 136. 

 Mendips, denudation in, 63. 

 Mersey, in Kent, ancient channel of, 120. 

 Metalfiferous veins. See Mineral veins. 

 Metals, supposed relative ages of, 628. 

 Metamorphic rocks, 537. 

 ...., defined, S. 



, . . ., less calcareous than fossiliferous rocks, 616. 

 ..., order of succession of, 615. 



Metamorphic rockg, glossary of, 590. 



strata, origin of, 591. 



structure, origin of, 526. 



Meteorites in drift, 151. 



Mexico, lamination of volcanic rocks in, 605. 



Meyer, M. II. von, cited, 153. 



, on reptile in coal, 497. 



, on sandstone of the Vosges, 335. 



on Wealden of Hanover and Westphalia 



264. 



Mica-schist, 584. 



Micaceous sandstone, origin of 14. 



3[icraster cor-anguinum, chalk, 245. 



Microconchus cat-honaHus, carboniferous, 884. 



Microlestes antiquus, teeth of, triassic mam- 

 mifer, 340. 



Miller, Mr. H., on origin of rock-salt, 344. 



, on old red sandstone, 412, 418. 



, on fossil trees of coal near Edinburgh, 376. 



Minchinhampton, fossil shells at, 308. 



Mineral character of aqueous rocks, 10, 97. 



composition, test of age of volcanic rocks, 



521. 



springs, connected with mineral-veins, 627 



.... veins and faults, 618, 620. 



.... veins of different ages, 620. 



veins, pebbles in, 6^22. 



veins, various forms of, 619. 



veins near granite, 624. 



Mineralization of organic remains, 38. 



Minerals, table of analyses of simple, 475. 



Miocene faluns of the Loire, 176. 



formation, 175. 



formation in Isle of Mull, 179. 



in United States, 180. 



. . . ., (lower), strata of Isle of Wight, 185. 



mammalia of Sewalik Hills, 182. 



.... of theBolderberg, 178. 



period, volcanic rocks of, 538. 



, term defined, 116. 



Mississippi, fluviatile strata and delta of, 3, 121, 

 122. 



Mitchell, Sir T., on Australian caves, 162. 



Mitscherlich, Prof., on augite and hornblende, 

 464. 



, on mineral composition of Somma, 526. 



3/itra scabra, Barton clay, 213. 



Modiola acuminata, Permian, 351. 



Modon, lithodomi in clilf at, 73. 



Molasse of Switzerland, 179. 



Monkey, tooth of, eocene, 219. 



Mons, flexures of coal at, 53. 



Mont Blanc, talcose granite of, 577. 



Mont Dor, Auvergne, 545. 



Montlosier, M., on Auvergne volcanoes, 550. 



Moraine, term explained, 128. 



Moraines of glaciers, 147. 



Morea, inland sea-cliffs of, 73. 



, trap of, 555. 



MoiTis, Mr., on fossils at Brentford, 153. 



Morton, Dr., on cretaceous rocks, 254. 



Morven, basaltic columns in, 4S3. 



Mosasauyiis Caniperi, jaws of, from Maes> 

 tricht, 238. 



Mountain limestone, fossils of, 403. 



Mull, Isle of, Miocene leaf-bed of, 179. 



Munster, Count, on fossils of Solenhofen, 302. 



Murchison, Sir E., cited, 278, 285, 287. 



. . . ., on eocene gneiss, 599. 



, on volcanic rocks of Italy, 530. 



. . . ., on new red sandstone, 336. 



, on age of Alps, 231. 



, on age of gold in Russia, 629. 



, on erratic blocks of Alps, 150. 



. . . ., on granite, 580, 533. 



, on primary str.ata in Eussia, 129. 



. , . ., on joints and cleavage, 601. 



, on old red sandstone of S. Devon, 419, 422. 



, on pentamerus, 433. 



, on Silurian strata of Shropshire, 56S. 



. . . ., on Swiss Alps, 614. 



. . . ., on term Permian, 850. 



, on term Silurian, 429. 



, on tilestonas, 430. 



