594 



vanced by never losing sight of the totality of 

 the elements on which the knowledge of the 

 general structure of the globe depends. 



Venezuela is one of the countries in which the 

 parallelism of the strata of gneis-granite, mica- 

 slate, and clay-slate is most strongly marked. 

 The general direction of these strata is N. 50° 

 E., and the general inclination from 60° to 70° 

 north-west. Thus I recognized them on a 

 length of more than an hundred leagues, in the 

 chain of the shore of Venezuela ; in the strati- 

 fied granite of las Trincheras near Porto-Cabel- 

 lo (Vol. iv, p. 197) ; in the gneiss of the isles 

 of the lake of Valencia (Vol. iv, p. 122); and 

 in the vicinity of the Villa de Cura; in the tran- 

 sition slate and greenstone on the north of Pa- 

 rapara (Vol. iv, p. 280) ; in the way from la 

 Guayra to the town of Caraccas, and in all the 

 Sierra de Avila (Vol. iii, p. 412, &c. and 488) ; 

 in Gape Codera (Vol. iii, p. 375) ; and in the 

 mica-slate and clayslate of the peninsula of 

 Araya (Vol. ii, p. 285; Vol. vi, p. 99). The 

 same direction from N. E. to S. W. and this 

 inclination to the N. W., are again observed, 

 although less decidedly, in the limestones of 

 Cumanacoa (Vol. iii, p. 80) at Cuchivano, and 

 between Guanaguana and Caripe. The excep- 

 tions * to this general law are extremely rare 



* Vol. ii, p. 285 j Vol. iii, p. 417—419 • Vol. iv, 59, 74— 

 77. 



