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CONTENTS. 



THE PRE-ADAMITE EARTH. 



PAGE 



CHAP. I. 186. Interest of the subject. 187. Recapitulation. 

 188. Original division of the land and water. 189. Uniform 

 temperature at all latitudes. 190. This temperature at first 

 too elevated for organic life. 191. Its gradual reduction. 

 192. Series of convulsions. 193. Depositions of organic remains. 

 194. First organic creation after the fourth convulsion. 

 195. The latest catastrophe of this kind. 196. Method of 

 determining the age of mountains. 197. Ranges of similar 

 date parallel. 198. Their nomenclature. 199. Method of 

 ascertaining the outlines of land and water at each geological 

 epoch. 200. M. Elie de Beaumont's seventeen mountain 

 systems. 201. Their directions and denominations. 202. 

 Manner in which they are grouped. 203. Plan of these 

 systems in Europe. 204. Their geological dates. 205. System 

 of Vendee. 206. System of Finistere. 207. System of Long- 

 mynd. 208. System of Morbihan. 209. System of Hundsruck. 

 210. System of the Ballons. 211. System of the North of 

 England. 212. System of Hainault. 213. System of the Rhine. 

 214. System of Thuringerwald. . . . . . 1 



CHAP. II. 215. Elie de Beaumont's mountain systems continued: 

 System of Cote d' Or. 216. System of Monte Viso. 217. System 

 of the Pyrenees. 218. System of Corsica. 219. System of the 

 Western Alps. 220. System of the Principal Alps. 221. 

 System of Tsenarus. 222. Principal effects of this convulsion. 

 223. Extension of De Beaumont's system by analogy to the 

 remainder of the globe ; general plan of mountain systems. 

 224. Geological horizon explained ; mineralogical characters in- 

 sufficient to identify it. 225. Indications supplied by fossili- 

 ferous deposits. 226. Twenty-nine fossiliferous strata. 227. 

 Zoological stratification. 228. Method of determining outlines 

 of land and water twofold : mineralogical and zoological. 229. 

 The mineralogical tests uncertain. 230. The zoological tests clear 

 and definite. 231. Organic remains which characterise the 

 bottom of deep seas. 232. Organic remains which determine 

 the shores of seas. 233. Others which determine the bottoms of 

 shallow seas. 234. Others which indicate the embouchures of 

 rivers and estuaries. 235. Conventional terms. 236. Successive 



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