80G JOURNAL OF FOKKSTRV 



Errors due to reading apparent diameters too high or too low on the 

 bole should not be very serious, except where the taper is great, since 

 they will amount approximately to the difference in diameter between 

 the points which should have been measured and those actually 

 measured. Thus, in case of a tree with i-inch taper per 6 feet of bole, 

 as in the example given, an upper reading will have to be taken at 6 

 feet above or below the middle of the stem to throw the result i inch 

 below or above the correct figure. 



