24 



CIRCULAR XO. 131, BUREAU OF PLAKT IXDUSTRY. 



over the stack, stretched gently from the pomt A over the top of 

 the stack to the pomt B and marked to show its length from A 

 to B. The cord is then removed and placed on the ground in 

 the position of A', B', and T', the points A' and B' being exactly 

 the same distance apart as A and B. At T' the cord should be made 

 to assume the shape of that portion of the top of the stack with 

 which the cord was in contact when it was stretched over the top 



of the stack. The dis- 

 T tance C T will then 



be the height of the 

 stack. 



NUMBER OF CUBIC 

 FEET IN A TON OF 

 HAY. 



The following figures 

 show the number of 

 cubic feet in a ton of 

 hay, based on a num- 

 ber of measurements, 

 as indicated below, the 

 hay being mainly tim- 

 othy or a mixture of 

 clover and timothy in 

 which tuuothy pre- 

 dominated. 



The average number 



Fig. 3.— Diagram showing a method of measuring the height of stacks Qf oubic feet per ton 



or ricks of hay. » i • r- ,- j. i 



of hay m 55 stacks 

 which had been standmg less than 30 days was 589.6; for 30 stacks 

 which had been standing from 30 to 60 days the average number 

 of cubic feet per ton was 581.5, while the average for 7 stacks which 

 had been standmg from 74 to 155 days was 514.9 cubic feet per ton. 

 Definite measurements of other kinds of hay have not been made. 

 The data given were obtamed in the States of Virginia and New 

 York by measurmg the volume of stacks and then weighing the 

 hay as it was baled from the stack. 



[Cir, 131] 



