COMPUTATION TABLES. 131 



7. Apothecaries' Fluid Measure. 

 60 minims =1 fluid dram. 



8 fluid drams =1 fluid ounce. 



16 fluid ounces = 1 pint. 



8 pints =1 gallon. 



cong. o. f. ^. f. 3. m. 



1 = 8 = 128 = 1024 = 61,440 

 1= 16= 128= 7,680 

 1 = 8 = 480 

 1 = 60 

 1 minim equals 1 drop of water. 



8. Line or Linear Measure. 



12 inches =1 foot. 



3 feet =1 yard. 



5 yards, or 16 1 feet = 1 rod or pole. 



40 rods =1 furlong. 



8 furlongs (320 rods) = 1 mile (statute mile). 



3 miles =1 league. 



1. mi. fur. rd. yd. ft. in. 



1 = 3 = 24 = 960 = 5280 = 15,840 = 190,080 



1 = 8 = 320 = 1760 = 5,280 = 63,360 



1= 40= 220 = 660 = 7,920 



1 = 5 = 16J = 198 



1 = 3 = 36 



1 = 12 



9. Surveyors' or Chain Measure. 



7.92 inches =1 link. 



25 links =1 rod or pole 



4 rods, or 66 feet =1 chain. 



80 chains =1 mile. 



mi. ch. rd. 1. in. 



1 = 80 = 320 = 8000 = 63,360 

 1= 4= 100= 792 

 1 = 25 = 198 



1 = 7.92 



