THE PRE -ADAMITE EARTH. 



Traces of this system are found between Liege and Lille, in the 

 direction of certain granitic islets, in the coal basin of Brittany, 

 and from Laval towards Quimper. 



213. IX. SYSTEM OF THE RHINE. This system is manifested 

 chiefly upon the cliffs of the Rhine, between Bale and Mentz, with 



a - various other parallel 



Fi 1C(5 . escarpments, indicating 



Triassiifsea. faults which have affected 



all the strata, including 

 the Vosgian sandstone, k, 

 fig- 126, patches of which 

 they have pushed up to 

 different heights, without 



disturbing their horizontal position. Hence have resulted islands 

 in the seas of this epoch, around which the Triassic group has 

 been deposited at a lower level, as shown in fig. 126. 



214. X. SYSTEM OF THIIEINGERWALD. The mountains to 

 which this system has given its name, and of which the Bcemher- 



2 waldgebirge is the continuation, 



. constitute the natural frontiers 



f>J which divide Bavaria, Saxony, 



Fi 12 7 an d Bohemia. The most re- 



Jurassicsea. /. markable effects of this 



catastrophe are manifested be- 

 tween Cassel and Linz, where 

 the Triassic strata, /, are up- 



* l i h gfdcb a lifted and overlaid by the 

 Jurassic deposits, m, in level strata, fig. 127. 



Some traces of this system are seen in the south-western part 

 of the Yosges, where the Triassic strata (gres ligarre] are raised 

 considerably above the general level, an effect probably produced 

 by the masses of serpentine which protrude in that region. 

 Between Avallon and Autun some granitic islets and dislocated 

 Triassic strata have also the north-west direction, and are sur- 

 rounded by the Jurassic limestone in level strata. The date of the 

 catastrophe is, therefore, anterior to the Jurassic period, but 

 posterior to the Triassic. 



1C 



