32 
BULLETIN 234, U. S. DEPARTMENT OF AGRICULTURE. 
CUTTINGS ON OTHER NATIONAL FOEESTS. 
In a selection cutting of lodgepole pine on the Medicine Bow Na- 
tional Forest 36 per cent of the original board-foot volume of the 
stand was removed. In a similar cutting on the Arapahoe National 
Forest 40 per cent of the original volume was taken. The marking 
in these cases was considerably lighter than at French Gulch, due to 
the greater exposure of the timber on the Medicine Bow and to the 
greater accessibility of that on the Arapahoe. The marking on 
22 representative acres on the Bighorn National Forest in Wyoming, 
in the summer of 1913 provided for the removal of approximately 
58.5 per cent of the board-foot volume. Table 15 shows by diameter 
classes the number of trees and the volume in board feet removed 
and left on an average acre in the operations on the Medicine Bow 
National Forest. 
Table 16. — Number of trees and volume in board feet removed and left on an average 
acre in selection cuttings on the Medicine Bow National Forest, Wyo. 
[Based on.97 measured acres.] 
Diame- 
Trees cut 
per acre. 
Trees left 
per acre. 
ter 
breast 
Living. 
Dead. 
Living. 
high. 
Number. 
Volume. 
Number. 
Volume. 
Number. 
Volume. 
Inches. 
Board ft. 
Board ft. 
Board ft. 
7 
0.71 
9 
2.18 
26 
38.70 
464 
8 
.94 
23 
2.19 
55 
37.50 
932 
9 
1.50 
63 
1.54 
65 
31.05 
1,304 
10 
3.03 
194 
1.61 
103 
23.95 
1,531 
11 
2.70 
230 
1.27 
108 
15.44 
1,312 
12 
6.76 
710 
.89 
93 
9.60 
1,007 
13 
5.36 
705 
.77 
98 
6.47 
821 
14 
5.04 
776 
.38 
59 
4.71 
726 
15 
2.53 
462 
.29 
53 
2.27 
412 
16 
2.10 
439 
.11 
24 
1.49 
312 
17 
1.14 
275 
.20 
47 
.75 
181 
18 
.74 
205 
.05 
14 
.37 
102 
19 
.41 
127 
.05 
16 
.14 
44 
20 
.21 
70 
.05 
11 
.06 
21 
21 
.06 
24 
.01 
4 
.06 
24 
22 
.07 
31 
». 
.04 
18 
23 
24 
.03 
.01 
15 
.01 
5 
.03 
16 
25 
.04 
23 
26 
28 
30 
.01 
6 
.01 
.01 
6 
7 
.01 
8 
31 
34 
Total.. 
.01 
.01 
9 
12 
33.62 
4,421 
11.58 
» 
172.45 
9,240 
BRUSH DISPOSAL. 
The object of brush disposal is to leave the cutover area in the 
best condition to insure reproduction and to protect it from fire and 
fungi. Brush left scattered haphazard over an area will permit of 
abundant reproduction, except where the debris is especially deep. 
Brush piled in windrows prevents reproduction upon the spaces they 
cover, though reproduction will be secured in the spaces between 
