26 BULLETIN 152, U. S. DEPARTMENT OF AGRICULTURE. 
Table 9. — Growth of hemlock in the Southern Appalachian Mountains. 1 
Diameter breast-high— inches. 
Height — feet. 
All types. 
Slope type. 
Cove 
type. 
All types. 
Slope type. 
Cove 
type. 
Age. 
West 
Vir- 
ginia. 
Ten- 
nessee. 
North 
Caro- 
lina. 
West 
Vir- 
ginia. 
Ten- 
nessee. 
North 
Caro- 
lina. 
Mini- 
mum. 
Maxi- 
mum. 
Aver- 
age. 
Aver- 
age. 
Aver- 
age. 
Mini- 
mum. 
Maxi- 
mum. 
Aver- 
age. 
Aver- 
age. 
Aver- 
age. 
Years. 
20 
0.1 
.7 
1.2 
1.8 
2.3 
2.8 
3.3 
3.8 
4.3 
4.8 
5.2 
5.6 
6.0 
6.4 
6.8 
7.2 
7.6 
8.0 
8.3 
4.0 
6.7 
9.0 
11.2 
13.1 
15.0 
16.9 
18.8 
20.6 
22.5 
24.3 
26.2 
28.0 
30.0 
31.9 
33.8 
35.7 
37.5 
39.5 
0.4 
.9 
1.3 
1.9 
2.4 
2.9 
3.6 
4.2 
4.9 
5.6 
6.4 
7.3 
8.1 
8.9 
9.9 
10.9 
11.9 
12.7 
13.5 
0.2 
.9 
1.9 
3.0 
4.1 
5.3 
6.7 
8.0 
9.4 
10.7 
11.8 
12.9 
14.0 
15.1 
16.1 
17.1 
18.1 
19.1 
20.0 
29 
41 
53 
63 
71 
79 
86 
92 
98 
103 
107 
111 
114 
117 
120 
122 
125 
127 
129 
30 
1.1 
2.2 
3.4 
4.7 
6.2 
7.6 
9.1 
10.5 
11.9 
13.2 
14.5 
15.5 
16.5 
17.4 
18.3 
19.2 
20.0 
20.7 
9 
11 
14 
16 
19 
21 
23 
25 
28 
30 
32 
34 
35 
37 
39 
41 
43 
44 
ii* 
14 
17 
20 
24 
27 
31 
34 
39 
43 
47 
51 
56 
60 
64 
67 
70 
9 
16 
23 
30 
37 
44 
51 
58 
64 
69 
73 
77 
81 
84 
87 
90 
93 
95 
15 
40 
23 
50 
30 
60 
36 
70 
80 
90 
100 
110 
120 
130 
140 
150 
160 
170 
42 
47 
53 
58 
62 
66 
70 
73 
76 
78 
81 
180 
83 
190 
200 
85 
87 
Volume — cubic feet. 
V 
olume— 
board feet. 
All types. 
Slope type. 
Cove 
type. 
All 
types. 
Slope type. 
Cove 
type. 
Age. 
West 
Vir- 
ginia. 
Ten- 
nessee. 
North 
Caro- 
lina. 
West 
Vir- 
ginia. 
Ten- 
nessee. 
North 
Caro- 
lina. 
Mini- 
mum. 
Maxi- 
mum. 
Aver- 
age. 
Aver- 
age. 
Aver- 
age. 
Maxi- 
mum. 
Aver- 
age. 
Aver- 
age. 
Aver- 
age. 
Years. 

3.8 
10.3 
19.7 
31.0 
45.0 
62.0 
82.0 
105.0 
130.0 
157.0 
188.0 
220.0 
257.0 
297.0 
340.0 
381.0 
422.0 
460.0 
4 
30 
68 
120 
180 
260 
350 
450 
580 
730 
910 
1,130 
1,380 
1,650 
1,920 
2,170 
2.400 
50 
1.7 
3.0 
4.8 
7.0 
10-0 
13.5 
17.7 
22.0 
27.0 
32.0 
1.5 
4.2 
8.0 
12.4 
17.9 
24.0 
31.0 
38.0 
46.0 
54.0 
64.0 
74.0 
86.0 
98.0 
3.1 
6.2 
10.5 
15.9 
22.0 
29.0 
36.0 
44.0 
52.0 
60.0 
68.0 
77.0 
86.0 
94.0 
80 
14 
no.. 
10 
22 
39 
58 
80 
20 
39 
60 
85 
110 
150 
190 
230 
270 
310 
34 
1.2 
1.6 
2.2 
2.8 
3.5 
4.3 
5.2 
6.1 
7-1 
56 
130. 
79 
140 
100 
150 
130 
160 
160 
170 
200 
180 
250 
300 
200 
350 
Based on the following data, collected by Walter Mulford, 1905-1906: 
West Virginia, Greenbrier County 47 trees, 137 to 200 years old. 
Tennessee, Johnson County 131 trees, 111 to 200 years old. 
North Carolina, Mitchell County 308 trees, 89 to 200 years old. 
