852 



Yearbook^ of Agriculture 1949 



AMOUNT OF SAW TIMBER IN TREES, BY DIAMETER AND MERCHANTABLE HEIGHT 



DOYLE LOG RULE 



Volume, according to number of usable l6-foot logs 



Data from Mesavage and Girard, tables for estimating board-foot volume of timber. (Form class 80.) 

 U. S. Department of Agriculture, Forest Service. 1946. 

 For exceptionally tall, slender trees add 10 percent. 

 For exceptionally short, stubby trees deduct IO percent. 



