382 Forestry Quarterly. 



used, however, only where there is a large percentage of one 

 species such as Douglas fir in the stand and when the desired re- 

 sult is only one figure for either the average volume per acre or 

 the total cruise of timber on a subdivision of land. 



The advantages of this method are many- It is convenient, 

 simple and rapid. In measuring distances no regard need be 

 taken of the cardinal points, hence there is no orientation and no 

 compass or other instrument is needed in the work. No time is 

 consumed in looking up section corners or lines for a starting 

 point or in measuring and laying off the boundaries of a sample 

 plot. 



It would be interesting to test the results obtained by this 

 method with those secured by some of the standard methods of 

 estimating timber used by the Forest Service.* 



* For refinement of this method see various articles on "space number" 

 in previous issues of Forestry Quarterly. — Ed. 



