

IOJ 



be seen, in w)u h rase an example of extreme simj 

 of structure would result There would then be no out- 

 crop or exposed edge 

 of any stratum to U 

 traced, unless tlu 

 surface of the ground 

 should be so uneven 

 as to expose the 

 edges of lower strata. 

 Except in tracts of 

 low alluvium, how- 

 , horizontal 

 strata have usually 

 been more or less 



.1 vines, so that 

 sect ions arc laid bare 

 of the underlying 

 rocks. Further, tin- 

 surface of the country 

 seldom rigidly corre- 

 sponds with the sur- 

 face ' -.uurn, 

 hut has been worn 

 across it, so as here 

 and there to 



PH 4 



outliers" or out- 



t^m . iMqpdhhi tm fe - 



standing portions of this upper stratum, and to lay bare 

 the strata below. >is has taken place in bare 



hilly land, with abundance of exposures of the rocks, 

 although the geological structure is still of the simplest 



