TO FIND THE WEIGHT OF HAY, IN EICKS OF 

 A CYLINDBICAL OE CONICAL FORM. 



I. To find the number of stones in a rick, its body 

 being of a cylindrical form and its top conical : 



RULE 1. To the perpendicular height from the ground 

 to the eaves, add one-third of that from the eaves to the 

 top, for the mean height. 2. When the rick is perfectly 

 cylindrical, take the girth any where between the ground 

 and the eaves ; but when not so, take a girth at the ground 

 and one at the eaves : their sum divided by 2 will give the 

 mean girth. 3. Multiply the square of the girth, or that 

 of the mean girth, by the mean height; their product, 

 multiplied by 100 and divided by 4847j> will give the num- 

 ber of stones nearly, reckoning 7 stones in a cubic yard. 



II. When the rick is of a conical form : 



RULE. Take the girth at the ground, and one-third of 

 the perpendicular height, then proceed according to the 

 former rule ; or take the whole perpendicular height, and 

 then take one-third of the quantity found. 



N. B. The two following Tables have been calculated at 7 

 stones per cubic yard ; but it is evident, from various causes, that 

 this cannot always be correct, for hay has been found to vary from 

 5 to 9 stones per cubic yard, or perhaps more. 



