Fig. 101. ILLUSTRATION OF THE ANIMAL AND VEGETABLE KINGDOMS 

 DURING THE JURASSIC AGE. 



THE PRE-ADAMITE EARTH. 



CHAPTEK 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 whicli 

 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 Longmynd. 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. 



186. THE history of our planet before it was clothed with that 

 variety of vegetation which now adorns it, and became the 

 LARDNER'S MUSEUM OF SCIENCE. B 1 



No. 144. 



