TABLES RELATING TO PARTS III AND IV 
281 
VOLUME TABLE No. 20. WESTERN WHITE PINE, IN 
BOARD FEET, BY THE SCRIBNER RULE 
(From Bulletin No. 36, U. S. Forest Service) 
Diam¬ 
eter 
breast- 
high 
, Number of Sixteen-Foot Logs 
Basis 
2 
3 
4 
5 
6 
7 
8 
9 
10 
Inches 
Volume 
— Board Feet 
Trees 
8 
40 
60 
85 
105 
7 
9 
45 
70 
95 
120 
40 
10 
55 
85 
110 
140 
165 
65 
11 
65 
95 
125 
160 
190 
76 
12 
75 
110 
145 
ISO 
215 
245 
104 
13 
125 
165 
200 
240 
280 
76 
14 
145 
190 
230 
270 
320 
360 
107 
15 
165 
215 
260 
310 
360 
400 
86 
16 
185 
235 
290 
340 
400 
450 
80 
17 
255 
320 
380 
450 
510 
570 
104 
18 
275 
350 
420 
500 
570 
640 
111 
19 
295 
380 
460 
550 
630 
720 
117 
20 
320 
410 
500 
600 
690 
790 
880 
115 
21 
430 
540 
650 
760 
870 
980 
103 
22 
460 
580 
710 
830 
960 
1080 
94 
23 
480 
620 
760 
910 
1050 
1190 
83 
24 
510 
660 
820 
980 
1140 
1300 
81 
25 
710 
890 
1060 
1240 
1410 
69 
26 
760 
950 
1140 
1330 
1520 
64 
27 
810 
1010 
1220 
1430 
1630 
65 
28 
1080 
1300 
1530 
1750 
40 
29 • 
1150 
1390 
1630 
1870 
23 
30 
1220 
1470 
1730 
1990 
28 
31 
1550 
1830 
2110 
14 
32 
1630 
1930 
2230 
9 
33 
1710 
2030 
2360 
14 
34 
2140 
2490 
6 
35 
2250 
2630 
6 
36 
2360 
2770 
4 
1791 
From timber grown in northern Idaho. 
Trees scaled to a top diameter inside bark of 6 to 8 
inches. -Height of stump — 2 to 3 feet. All trees scaled 
as though sound. Loss by breakage was 4 per cent. 
Loss due to invisible rot was 5 per cent. 
