guide for the return trip across the tract. My tallyman held a 

 course along the blazed line while I calipered over a fresh strip. 

 The measurements were made and classified in inch diameter 

 sizes for each species. The total number of trees of each diam- 

 ter was then counted up and multiplied by the corresponding 

 average volume ob,tained from the volume table, thus giving the 

 number of feet, board measure, in each diameter class, and the 

 sum of these volumes gives the total stand. 



The computation is shown in the following table: 



COMPUTATION OF GROWING STOCK. 



