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A TEXTBOOK OF OCEANOGRAPHY 



soundings of 4,175 fathoms, or 25,050 feet; to this may be 

 added the height of the neighbouring mountain Llullayucu, 

 21,654 feet, making a total distance of 46,704 feet. 



THE PRINCIPAL OCEAN DEEPS. 



The greatest depth so far recorded is 5,269 fathoms (31,614 feet) in the 

 North Pacific near the island of Guam. 



