126 7 he Horticulturist's Rule- Book. 



Square or Surface Measure, continued. 



sq.m. a. sq. rd. sq. yd. sq. ft. sq. in. 



1=646= 102,400 = 3,097,600 ==27,878,100 =4.014,489,600 



1= 160= 4,840 = 43,660 = 6,272,640 



1= ^A= 272^= 39.204 



I = 9 = 1,296 



i = 144 



Surveyors' Square Measure. 



625 square links = i square rod, or pole 



16 poles = i square chain. 



10 square chains = i acre. 



640 acres = i square mile or sec 



36 square miles (6 miles sq.) . = i township 

 tp. sq. mi. a. sq. ch sq. rd. sq. 1. 



! 36 23,040 = 230,400 = 3,986,400 = 2,304,000,000 



Solid o- Cubic Measure. 



1728 cubic inches = i cubic foot. 



27 cubic feet = i cubic yard. 



16 cubic feet = i cord foot. 



8 cord feet, or 128 cubic feet . . = i cord of wood. 



24^ cubic feet === i perch. 



cu. yd. cu. ft. cu. in. cd. cd. ft. cu. ft. cu. in. 



i = 27 = 46.656 = 1 = 8 = 128 = 221,184 



Avoirdupois, or Commercial Weight. 



2 7ii grains = i dram. 



16 drams = i ounce. 



16 ounces = i pound. 



25 pounds = i quarter. 



4 quarter, or 100 pounds = i hundredweight. 



20 hundredweight, 01 2,ooolbs . = i ton. 



480 pounds = imperial quarter. 



100 pounds is also called i central. 



t. cwt. Ib. oz. dr. gr. 



I = 20 = 2,000 = 32,000 = 512,000 



i 100 = i, 600 ===== 25,600 



i = 16 = 256 = 7,000 



I = 16 



