124 



The Horticulturist 's Rule- Book. 



Apothecaries' Fluid Measure, continued. 



cong. o. f. f. m. 



1 _ .8 = 128 ' — 1,024 = 61,440 



1 = 16 — 128 — 7,680 



1 = 8 = 480 



1 — 60 



One minim equals 1 drop of water. 



Line or Linear Measure. 







. . = 1 foot. 









5% yards, or 16^ feet . 







40 rods 







8 furlongs (320 rods) 





. . = Imile (statute mile) 









mi. fur. rd. 



yd. 



ft. in. 



= 3 = 24 = 960 = 



5,280 



= 15,840 = 190,080 



1 = 8 — 320 — 



1,760 



= 5,280 = 63,360 



1 = 40 = 



220 



— 660 — 7,920 



1 — 





=• 16^ — 198 





l 



— 3 = 36 



1 — 12 



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 = 8,000 — 63,360 

 1 = 4 — 100 = 792 

 1 = 25 — 198 



1 = 7.92 



Square or Surface Measure. 



144 square inches =1 square foot. 



9 square feet =1 square yard. 



30^ square yards =1 sq. rod or perch. 



160 square rods =1 acre. 



640 acres = 1 sq. mile or section. 



