27 



while another arm is so fixed that it will slide back and forth 

 at will. These calipers can be purchased from Keuffel & 

 Esser Company, of Jersey City, N. J. 



A*'***** 4* IT 4 



IM 



TREE 



The volume tables for pine are of three kinds, first, a 

 table showing quantities in board feet; second, one showing 

 volumes in caliper cords; and third, one showfng volumes in 

 solid cubic feet. The volume table for oak is classed, not 

 on diameter and total height, but on diameter breast high 

 and merchantable length. By merchantable length we mean 

 that portion of the bole that can be cut into saw logs. In the 

 table on chestnut only the volumes in board feet are given. 



