THE DEPTHS OF THE OCEAN. 



301 



ing," in the cup C, at the lower end of the rod B. With tliis 

 contrivance specimens of the bottom have been brought up from 

 the depth of nearly four miles. 



574. The greatest depths at which the bottom of the sea has 

 The deepest part of bccn rcachcd mth the plmnmet are in the North 

 the Atlantic Ocean. Atlantic Occan, and the places where it has been 

 fathomed do not show it to be deeper than twenty-five thousand 

 feet. The deepest place in tliis ocean (Plate XL) is probably 

 between the parallels of 35° and 40° north latitude, and imme- 

 diately to the southward of the Grand Banks of Newfoundland. 

 The first specimens have been received from the coral sea of the 

 Indian Archipelago and from the North Pacific. They were col- 

 lected by the surveying expedition employed in those seas. A few 

 soundings have been made in the South Atlantic, but not enough 

 to justify deduction as to its depths or the precise shape of its floor. 



