BALSAM FIR. 
55 
Table 42. — Volume of trees of different diameters and heights — Bangor and Maine rules. 
BANGOR RULE.i 
Height of tree (feet). 
-Lyiitiiieiei 
inside 
40 
50 
60 
70 
80 
90 
Uckl K. U 1 
^lncnes ) . 
Volume (board feet). 
15 
21 
27 
5. 9 
8 
23 
29 
38 
50 
64 
6.2 
9 
32 
40 
49 
62 
78 
6.4 
10 
42 
51 
62 
76 
93 
109 
6.6 
11...-. 
63 
94 
- 110 
129 
6.8 
12 
94 
113 
132 
154 
7.0 
13 
111 
135 
160 
185 
7. 1 
14 
129 
159 
186 
191 
223 
268 
7.2 
15 : 
226 
7.3 
16 
215 
262 
317 
7.4 
. 1 
MAINE RULE. 2 
7 
15 
21 
26 
5.9 
8 
24 
32 
40 
50 
60 
6.0 
9 
34 
44 
54 
65 
76 
94 
6.1 
10 
46 
57 
69 
81 
106 
6.2 
11 
71 
85 
99 
114 
129 
6.2 
12 
86 
102 
120 
138 
157 
6.2 
13 
121 
143 
167 
193 
6.3 
14^ 
140 
166 
200 
236 
6.3 
15 
191 
236 
283 
6.3 
16 
215 
271 
333 
6.4 
1 Based on taper curves, scaled as 16-foot logs. Stump height assumed, 1 foot. 
2 Based on taper curves, scaled as 8 and 16 foot logs. Stump height assumed, 1 foot. 
RATIO BETWEEN BOARD AND CUBIC MEASURE. 
Table 43 gives the ratio between board measure (Maine rule) and 
cubic feet. 
Table 43. — Batio between board measure {Maine rule) and cubic feet {merchantable 
contents) . 
[Based on 330 trees.] 
Diameter 
Board feet 
Diameter 
Board feet 
breast high 
per cubic 
breast high 
per cubic 
(inches). 
foot. 
(inches). 
foot. 
3.0 
12 
3.4 
8 
3.2 
13 
3.4 
9 
3.3 
14 
3.5 
10 
3.3 
15 
3.5 
11 
3.4 
16 
3.5 
