page and work along the line the way you are traveling, At what- 

 ever point on your line the change of growth occurs, draw a line 

 across, showing its location, and in your partial and total chain col- 

 umns, place your distance opposite line drawn. 



The different species of trees to be estimated are placed in col- 

 umns as shown. The estimate or scale of each log is kept on a 

 separate tally sheet. At the end of each mile the scale of the dif- 

 ferent species is added and these amounts are placed in their re- 

 spective columns on opposite page to your notes. After the tally leaf 

 has been used it may be torn out and destroyed, or it may remain, 

 providing the precaution is taken to mark or check the page to 

 prevent its being copied again into your work by mistake. 



This book may be used for the square and circle methods of es- 

 timating as well as the strip, using 2100 steps of ordinary length 

 to the mile. 



Most standing timber is estimated at sight and the length of log 

 and diameter at top end determines scale or number of feet in the log. 

 Among the many log rules in use in this country the Doyle seems 

 to be the favorite, except in the northern states where the rule ac- 

 cepted by the state is largely used. 



In estimating standing timber the length of log and diameter 

 at small end, under bark, is a matter of good judgment coupled 

 with a good eye and years of experience in cutting and scaling logs. 

 When one has acquired this knowledge the experienced estimator's 

 eye seeks the length instantly and at the same time determines the 

 diameter. 



In determining diameter, use 8-10-12-14-16, etc., inches, leaving 

 out the odd inches as the even ones are close enough. Should a log 

 be a little large for a 12" and not quite a 14," call it a 12" and even 

 it up on a small 12" later. The whole thing is a matter of experi- 

 ence and a thorough knowledge of cutting and the manufacture of 

 logs. 



Many lumber companies have a standard length of log, usually 

 16 feet. To meet such cases the 16-foot column in the tables on 

 page 2 are distinguished by a black rule on either side of column 

 so that it may be more conveniently located. 



4 



