!66 TiMEHRI. 



Suppose the se6lion area of the lower hold in a ship is 

 240 square feet, and it is required to know how much space 

 in the hold 130 tons of Anthracite Coal will occupy. This 

 coal we will take as occupying 43*3 cubic feet per ton. 

 Then we have 

 feet 

 Length 42.3 x 130 feet. 

 240 == 22.9 

 of space required. 



Suppose again we wish to know the weight of a block 

 of marble 8 feet long, 4 feet broad and 3 feet deep. 

 The specific gravity of marble averages 1*516 cwts. per 

 cubic foot, 



cwts. "" 



Then i'5i6 



96 Contents 



9096 

 13644 



145*536 = 145^ cwt. 



tons cwts. qrs. 

 or 752 



Or specific gravity per cubic foot in ounces, 

 16)2716(169 12 



16 96 Contents 



III 16,224 



96 72 

 tons. cwts. qrs. 



156 16,296 lbs. = 7 52 



144 



12 



