SCIENCE OF THRESHING. 77 



It is as easy to form and build a good, symmetrical 

 stack, as to push the straw back without reference to 

 the form of the pile. If the stack be commenced well 

 up towards the machine so that the stacker drops the 

 straw near the center of the stack; the straw will not 

 have to be moved as far as if the carrier deposited it 

 at the edge of the stack ; in the latter case the straw or 

 part of it, would have to be moved the entire width 

 of the stack. Also, if the center be better tramped 

 than the edges, the latter will settle more so that the 

 straw will incline downward on the outside, making 

 a better watershed; if the bulk of the straw has to 

 be moved from the center of the stack, as happens 

 when the stacker delivers there, the straw men will 

 naturally stand there, thereby packing it closely. 



