230 THE BOOK OF ALFALFA 



of the square) and multiply the quotient by itself and 

 this product by the length of the stack ; this will give the 

 number of cubic feet in the stack, which may be divided 

 by 512, 422, or 343 in order to find the number of tons. 

 For small, low ricks the rule is to subtract the width 

 from the 'over,' divide by 2, multiply by the width and 

 multiply the product by the length, dividing the result 

 by the number of cubic feet in a ton. 



"There is no established rule for measuring round 

 stacks, but this one will approximate the contents of one 

 of the ordinary conical form : Find the circumference at 

 or above the base or 'bulge' at a height that will average 

 the base from there to the ground, find the vertical 

 height of the measured circumference from the ground 

 and the slant height from the circumference to the top 

 of the stack. Multiply the circumference by itself and 

 divide by 100 and multiply by 8, then multiply the result 

 by the height of the base plus one-third of the slant 

 height of top. The hay in a round is necessarily less 

 compact than in a rectangular stack, hence a greater 

 number of feet should be allowed for a ton; with well 

 settled hay, probably 512 feet. 



"The rules given may also be used in measuring any 

 kind of hay, sorghum or Kafir-fodder in the stack. How- 

 ever, for sorghum or Kafir-fodder only approximate 

 results can be procured by stack measurements because 

 the fodder is apt to vary greatly in weight, according to 

 the moisture it contains." 



