SURVEYORS' MEASURE. 



Gunter's chain is used by land surveyors. It is 4 rods or 

 66 feet long., and contains 100 links. 



TABLE. 



25 links (li.) 1 rod, rd. 



4 rods 1 chain, ch. 



80 chains 1 mile, mi. 



TABLE OF MISCELLANEOUS LINEAR MEASURE. 



3 inches 1 palm. 



4 inches 1 hand. {S 8 ^Ci a d 8 e u r ringtheheightof horses 

 9 inches 1 span. 



3 feet 1 pace or step. 



3.28 feet 1 metre. 



6 feet 1 fathom. ) 



r,r,r\ f ^1 ^ ! / Used in measuring depths at sea. 



880 fathoms 1 mile. ( 



3 geographical miles 1 league. 



A U ( 



) 1 rloncvoo 5 Of latitude 

 69 1 Statute " / ut! S lt;t; - \ Of longitude en the equator. 



NOTE. A hair's breadth is the 48th part of an inch. 



A ship's cable is a chain, usually about 120 fathoms 

 or 720 feet long, hence the term " cable length " in nautical 

 language denotes about that distance. 



NOTES. 1. A knot is a nautical or geographical mile. 

 Thus, the phrase, " thirteen knots an hour," means thirteen 

 geographical miles an hour. 



