326 



INDEX. 



Magnetic currents, metamorphic effects 

 of, 74. 



Mammals, age of, 207. 



Mammals, marsupial, of the oolite, 196. 



Mammoth, extinction of, in Europe, 270. 



Mammoth remains, how preserved iu 

 Siberia, 230. 



Mammothian stage of post-tertiary sys- 

 tem, 286. 



Man, high relative antiquity of, 285. 



Man, his varieties and their relative 

 antiquity, 28S. 



Man's influence on the future, 320. 



Man's origin a question of natural his- 

 tory, 289. 



Man's place, as a geological problem, 

 277. 



MAN'S PLACE IN THE GEOLOGICAL RE- 

 CORD, 273-292. 



Man's remains in Western Europe, 278. 

 Mantell's 'Medals of Creation' quoted, 



115. 



Marine formations of current era, 258. 

 Marsupial mammals of the oolite, 196. 

 Megatherium, tertiary mammal, 207. 

 Mesozoic formations, definition of, 26, 



29. 



* Metamorphic rocks, their arrange- 

 ments, 77. 

 Metamorphic rocks, the so-called, 76, 



77. 

 <Metamorphism, all-pervading influence 



of, 80. 

 '. METAMORPHISM OR TRANSFORMATIONS 



OF ROCK-MATTER, 69-82. 

 Metamorphisin, summary of causes, 75. 

 Meteoric agencies, their operations, 38. 

 Microscopic organisms, accumulations 



of, 44. 

 Miller's, Hugh, 'Old Red Sandstone,' 



129. 



Millstone grit formation, nature of, 161. 

 Mineral and metalliferous districts, as- 

 pects of, 108. 



Miocene tertiaries, definition of, 203. 

 Mixed rocks, character of, 24. 

 Moraines, terminal, medial, and lateral,- 



220. 

 Mountain or carboniferous limestone, 



161. 

 Musk-ox, date of, in Europe, 281. 



Neolithic or younger stone age, 280. 

 V Neve, nature and formation of, 216. 

 Northern drift or glacial drift, 238. 



-'Gaze or ooze of Atlantic sea-bed, 259. 

 Ocean-currents, geological effects of, 



Oil-shales of coal formation, 173, 183. 

 OLD COAL-MEASURES, THE, 159-176. 



OLD RED SANDSTONE, THE, 129-142. 



Old red sandstone, its fossils, 134. 

 Old red sandstone, its rocks, 131. 

 Old red sandstone, probable climate of 

 period, 133. 



Oolitic coal of Richmond in Virginia, 

 149. 



Oolitic or Jurassic system, 189. 



ORDER AND SUCCESSION OF LIFE, 293-308. 



Organic agencies, geological effects of, 

 43. 



Organic and inorganic, difference be- 

 tween, 295. 



Organic formations of current era, 263. 



Organic structures most readily pre- 

 served, 116. 



Ornithiclmites or bird footprints, 195. 



Owen, progression of human species 

 307. 



Owen's description of the archseopteryx, 



Palaeolithic or ancient stone age, 280. 

 Palaeontology, the science of fossils, 1 12. 

 Palseophytology, science of fossil plants, 



Palseotherium, tertiary mammal, 207. 

 Palaeozoic formations, definition of 26 



29. 

 Palseozoology, science of fossil animals, 



112. 

 Parka decipiens, fossil crustacean 



spawn (?), 136. 

 Peat-moss, growth of, 43. 

 Peat-moss, nature and formation of. 



146. 



Peat-mosses of temperate latitudes, 263. 

 Pelagic or deep-sea deposits, 259. 

 Petrifaction, nature of the process, 118. 

 Petrifaction, preservative effects of 



119. 



Pfahlbauten or pile-dwellings of Swit- 

 zerland, 254. 

 Physical geography, relations of, to 



geology, 27. 



Pile-dwellings in lakes, 254. 

 Plant-growths, geological results of, 43. 

 Plants and animals of the future, 316. 

 Plants, systematic classifications of, 



121, 122. 



Polar seas, formation of ice on, 226. 

 Polders of Holland, 258. 

 Post-tertiary formations, arrangement 



of, 250. 

 Pre-historic and historic formations, 



269. 



Pre-historic remains of man, 281. 

 Pressure, metamorphic effects of, 70. 

 PRIMARY PERIODS, THE, 83-100. 

 Progression, law of, its irresistible pro- 

 gress, 321. 



Progression of life in the future, 318. 

 Progressive ascent of plants and ani- 

 mals, 300. 

 Pteraspis, fish of old red sandstone, 



138. 



Pterygotus, crustacean of the old red, 

 13t>. 



Quaternary or post tertiary formations 

 249. 



