BALSAM FIR. 41 
Table 21. — Volume growth, in board feet, of balsam fir in New York, on the basis of age. 
Age (years). 
Hardwood slope. 
Flat. 
Swamp. 
Vol- 
ume. 
Growth 
in vol- 
ume 
every 
5 years. 
Annual 
growth 
in vol- 
ume 
within 
5-year 
period. 
Vol- 
ume. 
Growth 
in vol- 
ume 
every 
5 years. 
Annual 
growth 
in vol- 
ume 
within 
5-year 
period. 
Vol- 
ume. 
Growth 
in vol- 
ume 
every 
5 years. 
Annual 
growth 
m vol- 
ume 
within 
5-year 
period. 
65 
22 
25 
28 
32 
35 
39 
70 ... 
3 
3 
4 
3 
4 
0.6 
.6 
.8 
.6 
.8 
20 
23 
26 
29 
80 
3 
3 
3 
0.6 
.6 
.6 
85 
QO 
16 
95 
43 
4 
.8 
32 
3 
.6 
18 
2 
0.4 
100 
47 
4 
.8 
34 
2 
.4 
20 
2 
.4 
51 
4 
. 8 
Q7 
01 
3 
. 6 
22 
2 
. 4 
110 
55 
4 
.8 
40 
3 
.6 
24 
2 
_.4 
115 
59 
4 
.8 
43 
3 
.6 
26 
2 
.4 
120 
63 
4 
.8 
46 
3 
.6 
28 
2 
.4 
125 
68 
5 
1.0 
50 
4 
.8 
31 
3 
.6 
130 
73 
5 
1.0 
53 
3 
.6 
33 
2 
.4 
135 
78 
5 
1.0 
56 
3 
.6 
36 
3 
.6 
140 
83 
5 
1.0 
60 
4 
.8 
38 
2 
. 4 
145 
87 
4 
.8 
63 
3 
.6 
41 
3 
.6 
150 
92 
5 
1.0 
66 
3 
.6 
43 
2 
.4 
Table 22. — Volume growth, in cubic feet, of balsam fir in New York, on the basis of age. 
Age (years). 
Hardwood slope. 
Flat. 
Swamp. 
Vol- 
ume. 
Growth 
in vol- 
ume 
every 
5 years. 
Annual 
growth 
in vol- 
ume 
within 
5-year 
period. 
Vol- 
ume. 
Growth 
in vol- 
ume 
every 
5 years. 
Annual 
growth 
in vol- 
ume 
within 
5-year 
period. 
Vol- 
ume. 
Growth 
in vol- 
ume 
every 
5 years. 
Annual 
growth 
in vol- 
ume 
within 
5-year 
period. 
40 
1. 73 
2.82 
1.09 
1.09 
0.218 
.218 
1.09 
1. 92 
45 
0.83 
0. 166 
0. 98 
50 
3. 91 
1.09 
.218 
2. 80 
.88 
.176 
1. 47 
0.49 
0.098 
55 
5.00 
1.09 
.218 
3. 67 
.87 
.174 
2.01 
.54 
. 108 
60 
6.10 
1. 10 
.220 
4.57 
.90 
.180 
2.60 
.59 
.118 
65 
7.20 
1. 10 
.220 
5. 47 
.90 
.180 
3. 21 
.61 
.122 
70 
8. 30 
1. 10 
.220 
6. 36 
.89 
.178 
3. 88 
.67 
.134 
9. 40 
1. 10 
.220 
7.23 
.87 
.174 
4. 56 
.68 
.136 
80 
10.50 
1. 10 
.220 
8.09 
.86 
.172 
5.24 
.68 
.136 
11. 63 
1. 13 
.226 
8. 91 
.82 
.164 
5.92 
.68 
.136 
90 
12. 74 
1. 11 
.222 
9. 74 
.83 
.166 
6.59 
.67 
.134 
95 
13. 85 
1. 11 
.222 
10.56 
.82 
.164 
7.26 
.67 
.134 
100 
14. 93 
1. 08 
.216 
11. 40 
.84 
.168 
7.94 
.68 
.136 
105 
16. 00 
1. 07 
.214 
12. 23 
.83 
.166 
8. 62 
.68 
.136 
110 
17. 05 
1.05 
.210 
13.09 
.86 
.172 
9. 30 
.68 
.136 
18. 10 
1.05 
.210 
13. 94 
.85 
.170 
9. 98 
.68 
.136 
120 
19. 15 
1. 05 
.210 
14. 80 
.86 
.172 
10.66 
.68 
.136 
125 
20. 19 
1. 04 
.208 
15. 64 
.84 
.168 
11. 34 
.68 
.136 
130 
21.23 
1. 04 
.208 
16. 50 
.86 
.172 
12. 02 
.68 
.136 
135 
22.29 
1.06 
.212 
17. 34 
.84 
.168 
12.70 
.68 
.136 
140 
23. 34 
1. 05 
.210 
18. 20 
.86 
.172 
13. 38 
.68 
.136 
145 
24. 37 
1. 03 
.206 
19. 04 
.84 
.168 
14. 09 
.71 
.142 
150 
25. 43 
1. 06 
.212 
19. 90 
.86 
. 172 
14. 80 
.71 
.142 
