456 TABLE XXIX. CAPACITY OP TANKS IX IMPERIAL GALLONS. 



1 j 



1. A circular tank, diameter 12 J feet, and depth 8 feet. 



By feet, 12.5 J = 156.25XS==1250X4.8947 ==6118.375 gallons, !| 

 inches,150-==22500X96=2160000X.002S326==6118.416do. 



2. A circular tank, circumference 39 feet, and deptli 8 feet. 

 By feet, 39 2 = 1521 X 8= 12168 X .49594=6034.59792 gallons, 



,,in.468 2 =:219024X96=2102C304X.0002S7=6034.S4924Sdo. 



3. An oblong tank, length 13 J feet, width 9 feet, and deptli 

 8 feet. 



By feet, 13.5X9=121.5X8=972X6.2321=6057.6012 gallons, 



inches, 162 X 108 = 17496 X 96 = 1679616 X .00360654 

 = 6057.60228864 gallons. 



It will be observed that the contents in these examples vary 

 a little from the contents found by the Tables, which is caused 

 by taking the fractions in the calculations of the Table, if above 

 a half-foot, as 1 ; or, neglecting them, when a half-foot, or under. 



Mr. George Melling, at the Annual Show Meeting of the 

 Royal North Lancashire Agricultural Society, held at Burnley 

 in September 1850, stated that he had made a calculation which, 

 he believed, would be found near enough for practical purposes, 

 that during the frosty months of November, December, January, 

 and February, when he considered it useless to apply liquid 

 manure, one cow, during that time, Would make 300 gallons. 

 The size of tanks necessary for a farm would, therefore, be regu- 

 lated by the number of stock kept, at the rate of 300 gallons for 

 each. This would be about 2 cubic yards for one cow, 9 yards 

 for 5 cows, 18 yards for 10 cows, 27 yards for 15 cows, and 36 

 yards for 20 cows, <fcc. Tanks of the proper dimensions, either 

 circular, square, or oblong, of the above-mentioned contents, mav 

 readily be found by Tables XXV., XXVI., and XXVIU. 



