36 
BULLETIN 139, U. S. DEPARTMENT OF AGRICULTURE. 
Table 21. — Volume of Norway pine with bark, in cubic feet, on basis of diameter, total 
height in feet. 
[Calculated from form factors of 306 Trees.] 
Diameter 
breast- 
high 
(inches). 
Height 
(feet). 
40 
50 
60 
70 
80 
, 
100 
110 . 
Form 
factor. 
Volume (cubic feet). 
5 
3.0 
4.2 
5.8 
7.5 
9.4 
11.6 
14.0 
16.7 
19.5 
23.0 
26.0 
3.7 
5.3 
7.2 
9.4 
11.8 
14.5 
17.5 
21.0 
24.0 
28.0 
32.0 
37.0 
41.0 
46.0 
4.4 
6.4 
8.6 
11.2 
14.2 
17.4 
21.0 
25.0 
29.0 
34.0 
39.0 
44.0 
50.0 
56.0 
62.0 
68.0 
75.0 
542 
6 
7.4 
1C.1 
13.1 
16.5 
20.0 
25.0 
29.0 
34.0 
40.0 
45.0 
51.0 
58.0 
65.0 
72.0 
80.0 
88.0 
96.0 
105.0 
114.0 
.540 
7 
11.5 
15.0 
18.9 
23.0 
28.0 
33.0 
39.0 
45.0 
52.0 
59.0 
66.0 
74.0 
82.0 
91.0 
100.0 
110.0 
120.0 
130.0 

.538 
8 
16.8 
21.0 
26.0 
32.0 
37.0 
44.0 
51.0 
58.0 
66.0 
74.0 
83.0 
93.0 
102.0 
113.0 
124.0 
135.0 
147.0 
.536 
9 
24.0 
29.0 
35.0 
42.0 
49.0 
56.0 
65.0 
73.0 
83.0 
93.0 
103. 
114.0 
126.0 
138.0 
150.0 
163.0 
.534 
10 
.533 
11 
12 
13 
14 
15 
16 
39.0 
46.0 
54.0 
62.0 
71.0 
81.0 
91.0 
102.0 
113.0 
125.0 
138.0 
151.0 
165.0 
179.0 
.531 
.530 
.529 
.528 
.527 
.526 
17 
.525 
18 
524 
19 
.523 
20 
.522 
21 
.522 
22 
.521 
23 
.520 
24 
.519 
By a comparison of Table 20 and Table 22 which follows, and by 
referring to the study of specific gravity, page 8, it is possible to 
determine approximately what sizes of trees can be driven without 
danger of expensive loss through sinkers. 
Table 22. — Volume of Norway pine sapwood, in cubic feet, on basis of diameter, total 
height in feet. 
Total height of tree (feet). 
Diameter 
breast-high 
(inches). 
40 
50 
60 
70 
80 
90 
100 
110 
Volume of sapwood (cubic feet). 
2.3 
3.2 
4.2 
5.2 
6.4 
7.8 
9.3 
10.8 
2.6 
3.9 
5.3 
6.8 
8.5 
10.4 
12.3 
14.2 
3.0 
4.5 
6.1 
8.0 
10.2 
12.4 
14.7 
16.9 
19.2 
21.0 
6 
7 
6.5 
8.6 
11.1 
13.7 
16.4 
19.0, 
21.0 
24.0 
26.0 
28.0 
8 
8.8 
11.6 
14.5 
17.6 
21.0 
23.0 
26.0 
28.0 
31.0 
33.0 
34.0 
36.0 
37.0 
9 
10 
15.4 
12.5 
22.0 
25.0 
28.0 
30.0 
33.0 
35.0 
37.0 
39.0 
40.0 
16.3 
19.6 
23.0 
■ 26.0 
29.0 
32.0 
35.0 
38.0 
40.0 
42.0 
43.0 
11 
12 
13 
27 
14 
31 
15 
34 
16 
38 
17 
40 
18 
:::::::::::: 
43 
19 
44 
20 

46 

Table 22 was computed from the form factors for Norway pine. 
The form factor is the ratio between the volume of the tree and that 
of a cylinder with the same total height and diameter at 4J feet from 
