502 



LN'DEX 



Marl, 452. 



Marls and sandstones, new and old 

 red, 426. 



Marsiliacese, 187. 



Marsilli aware of the generic distri- 

 bution of fossils, 33. 



Marsupialia, 429. 



Marsupites, 384. 



ornatus (figure), 228. 



Mastodon, 329; teeth of (figure), 

 329, 331. 



Mastodon saurus, 302. 



Megachirus, 264. 



Megalichthys, 282. 



Megalochelys, 291. 



Megalosauridee, 306. 



Megalosaurinidse, 296. 



Megalosaurus, the, 296, 415. 



Megasiphonia zic-zac (figure), 251. 



Megatheridse, 334. 



Megatherium, the, 334 ; (figure), 272. 



Melania, 368, 399. 



Melanopsis, 368. 



Meles antediluvianus, 338. 



Mergus, 313. 



Mericotherium, 322. 



Metallic veins, where they most 

 frequently occur, 7. 



Metals, list of, 81. 



Metamorphic rocks, Sir John Hall's 

 experiment respecting, 39 ; depo- 

 sits so named, 127, 463. 



Metaxytherium, 317. 



Metopias, 302. 



Meuse, lizard of the, or Mosasaurus, 

 389. 



Mica-schist, 128, 463 ; other schists, 

 128, 129. 



Micraster, 384. 



Micraster cor-anguinum(figure), 225. 



Microdon, 399. 



Microscope, its importance in geo- 

 logical investigations,'72. 



Microscopic shells, vast beds of, 376. 



Mineralogy, history of, 74 ; dis- 

 semination of minerals, 84 ; ex- 

 ternal characters, 100 ; cleavage, 

 101 ; classification, 106. 



Mining, application of geology to, 5. 



Miocene strata, 354, 356. 



Modiola, 399. 



Moh's system of crystallography, 

 78 ; classification of (illustrated), 

 97. 



Mollusca, general characters, 229 ; 

 divisions, 230. 



Monadelphous mammalia, 314, 316. 



Monocotyledonous phanerogamia, 

 195. 



Monodon, 317. 



Moro furnishes hints for the Hut- 

 tonian theory, 32 ; his commenta- 

 tion generally, 33. 



Monkeys, 339. 



Moschus, 322. 



Mosasaurus, the, 297, 389. 



Motacilla, 309. 



Mountain chains, age of, 151. 



Mountain limestone, the name in- 

 appropriate, 446 ; geographical 

 distribution, 446 ; mineral pro- 

 ductions, 446 ; organic remains, 

 447 ; caverns, 448. 



Murchison, Sir R. I., his discovery 

 of fish and shells in the same 

 deposit, 41, 453 ; his Silurian 

 System, 69 ; his subdivision of 

 the Devonian group, 450. 



Museum of Economic Geology, 68. 



Musocarpum, 195. 



Myl.odon, 334. 



Myriapoda, 266. 



Myrmecophaga jubata (figure), 333. 



Myrmecophagse, 333. 



Mystriosaurus, 295. 



N. 



NARANDA, 264. 



Natica, 368. 



Natural bridge, how formed (illus- 

 tration), 155, 156. 



Naturforscher, or German scientific 

 meetings, 4 1 . 



Nautilidse, 250, 421, 435, 448. 



Nautilus elegans (figure), 251. 



Nebalia, 263. 



Nebular theory, the, 55 ; rendered 

 doubtful by Lord Rosse's dis- 

 coveries, 56. 



