TABLES RELATING TO PARTS III AND IV 291 



SHORTER TIMBER 



The trees in this table are really of good length. Meas- 

 urements on short mountain timber are not available. 



Cedar Shingle Bolts. Very defective trees, the break- 

 age of logging operations, and sometimes the whole 

 usable contents of trees above about 20 inches in breast 

 diameter are largely utilized in this form. The bolts are 

 cut 52 inches long and the larger pieces split; they are 

 then piled and measured in the cord 8X4 feet. In 

 present practice from 18 to 25 bolts make a cord which 

 careful measurement has shown to contain of solid wood 

 about 70 per cent of its outside contents. A cord is 

 equivalent to from 500 to 700 feet log scale, less in the 

 smaller sizes of timber. 



