
ESTIMATING STANDING TIMBER. £15 
Volume Table for White Pine—Continued. 
Cupic CONTENTS OF STEMS, INCLUDING BarK—Continued. 
HEIGHT IN FEET. | 
| 
| 
| 
| 



| 
Diameter, | Tae | < | _ | Diameter, Boca 
breasthigh | 155 | 160 | 165 | 170 | 175 | breasthigh | 5, 745, 
(inches). | | (inches). : 
| CUBIC FEET. 
| | | | | 
a | 549.4 Bol 77 4 ps 612.4 40| 0. 401 
sie Sane 568. 3) 586. 6 604.9) 623. 2 641.5, 41) . 400 
ae 595. 0| 614. 2} 633.4) 652.6 671.8) 42} 399 
C2 See 622. 2} 642. 3| 662. 4) 682.5, 702. 6| 43 . 398 
2s Ae | 649. 6] 670.5 691.4 712.3, 733.2 44| . 397 
A etige | 678. 0] 699.9) 721.8, 748.7 765. 6| 45 . 396 
1 eee | 706. 6| 729. 4) 752.2) 775.0, 797.8 

46). 395 


METHODS OF ESTIMATING STANDING TIMBER. 
_Methods of estimating timber vary greatly in different parts of 
the country and vary also among different cruisers in the same 
region. Where accurate results are desired it is the custom to 
count every merchantable tree on the tract to be estimated, and 
frequently the diameters of the trees are measured also. The 
cruiser knows the contents of an average tree or of trees of differ- 
ent diameters from experience, or he secures the figures from 
volume tables, which have been made by measuring a large num- 
ber of felled trees. By multiplying the number of trees on a 
tract or acre by the contents of an average tree he ascertains 
the total amount of standing timber. In determining the con- 
tents of average trees the cruiser makes the necessary deductions 
for imperiections and unsoundness. 
In counting trees in the woods some cruisers go so far as to mark 
each tree with a blaze or tag in order not to count it asecond time. 
This is particularly common in the Allegheny Mountains. 
In flat country, as, for example, in the Lake States, it is still 
more difficult to keep track of the counted trees and not to go 
over the same ground twice. In such country systematic methods 
