164 A MANUAL FOR NORTHERN WOODSMEN 



man has no concern. Such a man when he wishes to 

 know the diameter of a standing tree at a point out of 

 reach will ordinarily either estimate it or cut the tree 

 down. 



ARK BLAZER 



Occasionally, however, timber 

 may be met with which is of suf- 

 ficient value for special purposes 

 to require measurement in this 

 way. In such a case the engineer's 

 ( ,^ -^-^ ^^ transit may be employed, and by 

 3 1 its aid it is not a difficult matter 



* to determine either the height at 

 which any given diameter is at- 

 tained or the diameter at any given 

 height. A very simple little in- 

 strument for diameter measure- 

 ment has been devised, which is described by its inventor 

 as follows : * 



TIMBER SCRIBE 



" The Biltmore pachymeter is used in connection with 

 a target or piece of board graduated in inches, marked 



1 Forestry Quarterly, Vol. IV, p. 8. 



