APPENDIX 533 



SURVEYOR'S MEASURE 



7 . 92 inches = 1 link (Gunther's or surveyor's) 

 100 links = 1 chain ( =66 feet) 

 80 chains = 1 mile 



SURVEYOR'S AREA MEASURE 



625 square links 



'HIS OVU.C*J.Vs XJ.XJ.iVtJ 



16 (square) poles 



10 square chains or 160 square 



i40 ar>rps 



rods = 



640 acres 

 36 square miles 



(square) pole or square rod 

 square chain (surveyor's) 

 acre 



square mile 

 township 



TIME .MEASURE 

 60 seconds =1 minute 

 60 minutes = 1 hour 

 24 hours = 1 day 

 7 days = 1 week 



365 days = 1 year 



366 days = 1 leap year 



TROY WEIGHT 



24 grains = 1 pennyweight 



20 pennyweights = 1 ounce 

 12 ounces = 1 pound (troy) 



1000 troy grams = 1 pound avoirdupois 

 1 troy or apothecaries' pound = 5760 grams 



Carat (for precious stones) = 200 milligrams. The carat was formerly an 

 ambiguous term having many values in various countries. 



Karat (fineness of gold) =- (by weight) gold. For example, 24 karats 

 fine = pure gold; 18 karats fine =^f pure gold. 



MARINER'S MEASURE 

 6 feet = 1 fathom 



120 fathoms = 1 cable length 



1\ cable lengths = 1 mile 

 5280 feet = 1 statute mile 



6085 feet = 1 nautical mile 



MISCELLANEOUS 

 3 inches = 1 palm 



4 inches = 



6 inches = 



18 inches = 



21.8 inches = 



hand 

 span 

 cubit 



Bible cubit 

 military pace 



