TABLE XXVIII. CUBIC CONTENT OF CYLINDRICAL TANKS. 451 



By Rule 2, the dimensions in feet, 



12.5 2 =: 156.25 X 8 =: 1250 X .02909 = 36.3625 yards. 

 Dimensions in inches, 



150 2 = 22500X 96 = 2160000 X .000016834 = 36.36144 yards, 

 and the fraction, .36144, multiplied by 27, gives 9.7588, or 

 nearly 9| feet as above. 



These results differ a little from the content shown in the 

 Table, as fractions above a half-foot are set down as 1 . 



NOTE. If the diameter of a circular tank be multiplied by 

 3.1416, the product is equal to its circumference; and, if the 

 circumference be multiplied by .31831, the product is equal to 

 its dia?neter. 



