478 



THE DEPTHS OF THE SEA. 



[CHAP. x. 



in thickness, were elevated above the waters and 

 became dry land ; the only essential difference would 

 be in the generic and specific characters of the im 

 bedded animal and vegetable remains." l In 1858 

 Professor Huxley spoke of the Atlantic mud as 

 " modern chalk." 2 Very early the identity of some 

 of the chalk foraminifera with species now living was 

 observed. Mr. Prestwich, in his able resume of this 

 question, so often quoted, gives a table drawn up by 

 Professor Rupert Jones of 19 species of foraminifera 

 out of 110 from the Atlantic mud identical with 

 chalk forms, viz. : 



1 Wonders of Geology, 6th edition, 1848. Vol. i. p. 30-5. 



2 Saturday Review. 



