The Mighty Deep 



''miles" have been mentioned. There is the 

 ordinary "Statute mile," used in common con- 

 versation, which is 880 fathoms, or 1,760 yards, 

 in length. There is also the '' Geographical " or 

 ''Nautical" mile — the "knot" of our Navy — 

 which is 1,013 fathoms or 2,026 yards in 

 length. 



The difference between the two is not far from 

 one-eighth of a statute mile. Roughly, seven 

 miles are equal to six knots. A fathom is six 

 feet or two yards. 



26 



