492 



CONCLUDING EEMAEKS ON DELTAS 



[Ch. XIX. 



have taken place over equally wide areas. When all these 

 revolutions, gradually brought about by aqueous and igneous 

 agency, are duly considered, we shall, perhaps, acknowledge 

 the justice of the conclusion of Aristotle, who declared that 

 the whole land and sea on our globe periodically changed 



place s.* 





* Seep. 21. 



JE 



.301 







. GOl 







-sAXD-D 



IE 



- 



Ibhoi 



v. 



ieir el 





--dr 





-i 



■'* 





m' 



xN 



'^{* X 





















