52 
BX7LLETIX 234, U. S. DEPABTMENT OF AGBICULTUBE. 
Table 27. which is based on 894 trees, shows the number of ties (including about 25 
per cent second-class ties), and of prop material expressed in linear feet, for trees from 
10 to 15 inches in diameter and from 50 to 90 feet in height. 
Table 27. 1 — Average number of first and second class railroad ties and amount of mine 
prop material in lodgepole pine. Medicine Bow National Forest, Wyo. 
Diameter 
Total height of trees. 
breast 
50 feet 
60 feet. 70 feet. 
SO feet. 
90 feet. 
high. 
Ties. 
Props. 
Ties. 
Props. 
Ties. 
Props. 
Ties. 
Props. 
Ties. 
Props. 
Inches. 
No. 
Feet. 
_Vo. 
Feet. 
-To. 
Feet. 
To. 
Feet. 
_To. 
Feet. 
10 
11 
2.0 
2.4 
17 
13 
2.3 
2.7 
21 
IS 
2.5 
3.0 
25 
21 
3.0 
3.6 
29 
25 
4.0 
2S 
12 
2.8 
12 
3.2 
15 
3.5 
19 
4.1 
21 
4.5 
24 
13 
3.3 
11 
3.6 
14 
4.0 
17 
4.7 
19 
4.9 
21 
14 
3.7 
11 
4.0 
13 
4.5 
15 
5.1 
17 
5.4 
19 
15 
4.0 
11 
4.4 
13 
5.0 
14 
0. 
15 
5.8 
17 
i From Forest Service Circular 12C> 
FOEM TABLES. 
Table 2S. based on 735 trees, shows the butt taper in trees of different sizes, and is 
useful for estimating the diameter breast high when only the stumps remain. "While 
the table is based on measurements taken in Wyoming, it has been found to be reliable 
for Montana, and is probably so for Colorado. 
Table 
28. 1 — Butt taper of lodgepole pine as shown by diameter outside baric, Medicine 
Bow National Forest, JVyo. 
Diame- 
Height from ground. 
Diame- 
Height from ground. 
- 
ter 
breast 
1 foot. 
2 feet. 
3 feet. 4 feet. 
5 feet. 
eter 
breast 
1 foot. 
2 feet. 
3 feet. 
4 feet. 
5 feet. 
high 
high. 
Diameter. 
Diameter. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. 
Inches. Inches. 
Inches. 
5 
5. 5 
5.4 
5.2 
5.1 
4.9 ( 
12 
13.3 
12.5 
12.2 
12.1 
11.9 
6 
6.6 
6.4 
6.2 
6.1 
5.9 
13 
14.4 
13.6 
13.2 
13.1 
12.9 
7 
7.8 
7.4 
7.2 
7.1 
6.9 ; 
14 
15.6 
14.7 
14.2 
14.1 
13.9 
s 
S.9 
S.4 
8.2 
8.1 
7.9 | 
15 
16.8 
15.8 
15.3 
15.1 
14.9 
9 
10.0 
9.4 
9.2 
9.1 
8.9 
16 
18.0 
16.9 
16.4 
16.1 
15.9 
10 
11.1 
10.4 
10.2 
10.1 
9.9 1 
17 
19.3 
1S.1 
17.5 
17.1 
16.9 
11 
12.2 
11.5 
11.2 
11.1 
10.9 
i From 
Forest Sei 
vice Circu 
[ar 126. 
Table 29 shows the stem taper of lodgepole-pine trees of different diameters breast 
high. Such a table can be used as a basis for constructing volume tables in terms of 
any desired unit, and is also useful as showing at what distance from the ground any 
given diameter occurs, in trees of different diameters and heights. 
