TAELE XXVH. 



SHOWS THE NUMBER OP STONES OF HAT, ETC., IN STACKS CONTAINING 

 FROM 1 TO 500 CUBIC YARDS, AT RATES FROM 4; TO 20 STONES 

 PER CUBIC YARD. 



THE content of stacks in cubic yards is placed in the left-hand 

 column of the Table ; and, in the first two pages, under their 

 respective headings, opposite each content, is found the number 

 of stones at any required rate, from 4 to 12 stones per cubic yard ; 

 the second two pages contain the number of stones in each con- 

 tent, from 13 to 20 stones per cubic yard. 



Having ascertained by Tables XXV. or XXVI. the content of 

 a stack in cubic yards, and estimated, from its size, age, &c., tho 

 number of stones, whether Imperial or Scotch Trone, that a 

 cubic yard may be supposed to weigh, the number of stones in 

 the stack is at once found in the column under the estimated 

 weight, opposite the given content. 



Thus, if the content of a stack is found to be 76 cubic yards, 

 and is supposed to weigh at the rate of 16 stones per cubic "yard ; 

 on turning to the Table, we find that in the column under 16 

 stones, opposite 76 yards, stands 1216 stones, the weight of the 

 stack. 



NOTE. The extent and usefulness of the Table may be in- 

 creased by remembering that a cypher added to the right of any 

 number raises its value tenfold. If, then, we add a cypher to 

 both the yards and the stones, in the above example, a stack 

 containing 760 cubic yards would be shown to weigh 12,160 

 stones. 



To reduce Imperial stones to hundredweights, divide tho 

 number by 8; thus, 1216 ~- 8 = 152 cwt.; and 12,160 *- 8 = 

 1520 cwt.; which may be divided by 20, to reduce them to tons, 

 if required. 



