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. 



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