portrait of, 137. Millstone grit, how formed, 153. Mines, ancient, in Spain, 257. 66 depth of, 439. Miners' Castle, Pictured Rocks, 86. Mining and miners, 143, 146. Mining implements, ancient, of Lake Su- Mining implements in Spain, 257. Mining of timber in New Jersey, 257, 258. Mississippi River, geological relations Mississippi River, sediments of, 398. 66 in, 25. Valley, effect of depression Missouri River, origin of, 201. Moisture as a cause of prairies, 266. Mounds, burial, 260, 350. 66 66 gold regions, 335. 66 66 66 Wood's, 203. Amherst, 186. Naked reptiles, 167. 66 Nantucket, change of level at, 22. Nautilus, the Paper, 110. 66 Pearly, 114. Nautilus pompilius, 114. Nebulæ, 425. Nebular hypothesis, 41, 42. Neptune and world-harmonies, 329. Newberry, J. S., on fishes, 127. 66 66 "reptiles 170. "fossil vegetation, 254. New Brunswick, change of level in, 22. 66 66 Jersey, change of level in, 22. New Red Sandstone, 168. Newton on comets, 409. 66 "resisting medium, 418.. Niagara limestone, 123. 66 66 mass, 134. as an oil rock, 280. of Mesozoic Time, 201. phy, 224. age of, 245. Nilsson on primeval man, 363. North Carolina, change of level in, 22. Occupations of primeval man, 363. salt rocks, 305. Oil, something about, 273. "mistaken opinions about, 275. 66 "accumulation, conditions of, 287. "Red Sandstone, 131, 439. Onondaga salt formation, 303. Oölitic reptiles, 188. Opisthocœlian vertebræ, 188. Order of Nature temporary, 382. Ordinal groups, succession of, 316. 66 types, 324. Oreodon Culbertsoni, 208. Organic types, succession of, 315, 316. Orographic outlines of N. America, 96. 66 in United States, 22. 66 in ancient times, 152. use of, in coal-making, 161. Owen, D. D., on Potsdam sandstone, 79. 66 66 66 portrait of, 211. Petroleum, illusory ideas about, 275. 66 66 in all formations, 281. quantities of, discharged, 286. accumulation, conditions of, Petroleum regions in U. States, 288, 292. Physics, wonders of, 422. Pictured Rocks, Lake Superior, 85. Piles of London Bridge, etc., 256, 257. Plans of animal structure, 101, 175, 314. appearing in new localities, 250. Popol Vuh of the Aztecs, 387. Portage Lake, Lake Superior, 85. Portland (Connecticut) quarries, 182. Pot-holes in ancient river-beds, 269. Potsdam group, 76. Protozoa, 69, 316. Prout, Dr. H. A., 208. Providence in Nature, 333, 395. Pterodactyls or Pterosaurs, 168, 178. 66 footprints of, 182. Quincy, Illinois, prairies of, 268. 66 66 man, 357. order of advent of, 203. American, with primeval wearing down, 230. Romans on catastrophes, 386. Rorison on precipitation of planets, 420. Quadrupeds, European, with primeval Rush of passing events, 414. man, 354. Quantities of oil discharged, 286. "world-harmonies, 329. Sauropus primævus, 188. Siberian ice and elephants, 221. Sigillaria, 158, 159. Silurian rocks, 75. 66 "organic types, 326. Suckers of cephalopods, 114. Sugar-Loaf, Mackinac Island, 247. Upper, rocks and fossils of, 124. Sun cooling off, 408. Siphon in chambered shells, 119. Sivatherium, 203. Skovmose in Denmark, 253. Smell of petroleum illusory, 277, 278. Solar heat wasting, 409. 66 amount of, 422. 66 66 rotating in a gaseous state, served, 32. 66 amount of heat from, 408. distance of, 421. "constitution of, 426. Superior, Lake, see Lake Superior. Superiority of man over brutes, 375. Supplies of petroleum, 286. Surface materials of Southern States, 222. 66 66 oil at Enniskillen, 292. Sutro tunnel, 440. Swallow, G. C., on Missouri, 125. 66 Syenites, 52. 66 Specimens, illustrative, of planetary Symplegades, character of, 25. stages, 46. Spectroscope and its revelations, 425. Spiritual bodies, 372. 66 phenomena, 371. Sponges in Lower Silurian, 82. Spring-poles in well-boring, 286. Somme, human relics in valley of, 356, 367. |