34 
BULLETIN 1060, U. S. DEPARTMENT OF AGRICULTURE. 
Table 12. — Volume table for Sitka spruce in Behm Canal (Alaska) region. 
This table is based on taper measurements, in 1917, of 131 trees, total 
height and length of tip of 28 trees, and total height only of 92 trees which 
grew near Loring, Alaska. Figures indicate merchantable volumes, scaled 
by Scribner Decimal C rule, and represent contents from stump height of 2 
feet and up to 6 inches d. i. b. at top. They are unreliable for trees over 44 
inches in diameter. The table was prepared under the direction of It. E. Kan 
Smith. 
Diameter breast-high. 
Volume. 
Diameter breast-high. 
Volume. 
Inches. 
24 
Boardfeet 
in tens. 
82 
101 
132 
154 
166 
192 
219 
250 
283 
318 
357 
Inches. 
46 
Boardfeet 
in tens. 
400 
26 
48 
445 
28 
50 
491 
30 
52 
536 
32 
54 
587 
34 
56 
639 
36 
58 
686 
38... 
60 
736 
40 
62 
784 
42 
64 
837 
44 
66 
890 
Table 13. — Log volume table for Sitka spruce in Oregon and Washington. 
This table was constructed from measurements of 234 felled Sitka spruce 
trees in Oregon and Washington (the majority of which grew along the Hump- 
tulips River in Washington). By means of the Scribner Decimal C rule the 
volume of each log and its percentage of the total merchantable volume in the 
tree were calculated, and these percentages were curved and applied to the 
merchantable volume of the average tree for each diameter class. Logs are in 
32-foot lengths. 
Total 
mer- 
chant- 
able 
volume. 
Log volume and percentage of total volume. 
Diameter above 
ii swell. 
Butt log. 
Second log. 
Third log. 
Fourth log. 
Basis. 
Inches. 
20 
Bd. ft. 
in tens. 
40 
58 
83 
108 
140 
178 
219 
269 
317 
374 
431 
493 
558 
622 
692 
768 
842 
916 
998 
1,081 
1,169 
1,250 
1,334 
1,423 
1,514 
1,609 
1,862 
Bd.ft. 
in tens. 
23 
32 
43 
53 
66 
79 
93 
109 
125 
143 
161 
181 
202 
222 
245 
269 
292 
315 
340 
365 
391 
413 
437 
461 
484 
510 
575 
Per 
cent. 
57.8 
54.9 
52.2 
49.6 
47.1 
44.6 
42.6 
40.7 
39.4 
38.3 
37.5 
36.8 
37.3 
35.8 
35.4 
35.1 
34.7 
34.4 
34.1 
33.8 
33.5 
33.1 
32.8 
32.4 
32.0 
31.7 
30.9 
Bd.ft. 
in tens. 
13 
18 
26 
33 
42 
53 
64 
78 
91 
106 
122 
138 
156 
173 
192 
210 
229 
247 
268 
288 
309 
329 
348 
369 
392 
413 
472 
Per 
cent. 
33.7 
32.5 
31.6 
30.8 
30.3 
29.8 
29.4 
29.0 
28.7 
28.5 
28.3 
28.1 
28.0 
27.9 
27.7 
27.4 
27.2 
27.0 
26.9 
26.7 
26.5 
26.3 
26.1 
26.0 
25.9 
25.7 
25.4 
Bd.ft. 
in tens. 
Per 
cent. 
Bd.ft. 
in tens. 
Per 
cent. 
No. 
trees. 
2 
22. 

9 
24 
9 
26 

10 
28 
8 
30. 
34 
42 
53 
62 
74 
86 
98 
112 
124 
139 
155 
171 
187 
204 
223 
242 
259 
277 
296 
316 
338 
395 
19.4 
19.5 
19.6 
19.7 
19.8 
19.9 
19.9 
20.0 
20.0 
20.1 
20.2 
20.3 
20.4 
20.5 
20.6 
20.7 
20.7 
20.8 
20.8 
20.9 
21.0 
21.2 
14 
32.. 

34... 
23 
36 
35 
41 
47 
55 
63 
71 
80 
89 
98 
108 
119 
129 
141 
152 
164 
178 
191 
204 
244 
11.0 
11.0 
11.1 
11.2 
11.3 
11.4 
11.5 
11.6 
11.7 
11.8 
11.9 
12.0 
12.1 
12.2 
12.3 
12.5 
12.6 
12.7 
13.1 
28 
38 

40 
15 
42 

44 
32 
46 

48 
18 
50 

m 
52 
15 
64 

56 
14 
58 

60 
4 
62 

64 
4 
66 

68 
70 

75 . 
i 
234 
