BALSAM FIE. 35 
Table 11. — Height growth of balsam fir in Maine, on the basis of age, based on 456 trees. 
Height of tree (feet). 
Annual 
growth 
within 
5-year 
period 
(feet). 
Maxi- 
mum. 
Mini- 
mum. 
Aver- 
age. 
10 
8 
0.5 
22 
6 
14 
1.2 
33 
20 
1.2 
42 
8 
25 
1.0 
49 
10 
30 
1.0 
55 
12 
36 
1.0 
60 
14 
40 
1.0 
63 
16 
45 
1.0 
67 
18 
49 
.8 
Height of tree (feet). 
Age (years). 
Maxi- 
• 
Mini- 
Aver- 
mum. 
mum. 
age. 
60 
69 
21 
52 
72 
24 
56 
70 
74 
27 
59 
75 
76 
31 
61 
80 
78 
35 
64 
85 
79 
38 
66 
90 
81 
41 
68 
95 
82 
45 
70 
100 
83 
48 
71 
Annual 
growth 
within 
5-year 
pe'riod 
(feet). 
Table 12 shows the relation between the height and diameter 
growth for all types together in New York, Maine, New Hampshire, 
and Minnesota. 
Table 12.— Comparative height groivth of balsam fir in different States, on the basis of 
diameter breast high. 
Height of tree (feet). 
Diameter breast high (inches). • 
New York. 1 
Maine. 2 
New 
Hampshire. 3 
Minnesota. 4 
1 
9 
12 
15 
8 
2 
17 
20 
24 
16 
3 
26 
27 
31 
23 
4 
33 
35 
37 
31 
5 
40 
42 
42 
37 
6 
46 
48 
46 
43 
51 
54 
50 
48 
8 
54 
60 
53 
53 
9 
58 
64 
56 
58 
10... 
60 
68 
59 
62 
11 
63 
72 
61 
67 
12 
65 
75 
63 
13 
67 
70 
72 
74 
76 
78 
81 
84 
86 
65 
67 
69 
70 
72 
14 
15 
16 
17 
1 All types, based on 1,138 trees. 3 All types, based on 326 trees. 
2 All types, based on 456 trees. 4 All types, based on 165 trees. 
These figures indicate again tl^at the tree reaches its best develop- 
ment in Maine and its next best in New York. Growth in Minnesota, 
though apparently more rapid than in New Hampshire or New York, 
on the whole is poorer than in any other State. The actual number 
of trees on which the figures for Minnesota are based is not large, while 
the figures for height growth in New Hampshire are based not on 
actual measurements of felled trees but on those of standing trees by 
means of a height measurer. If the measurements in the two States 
had been taken in the same way and on the same number of trees, 
the difference in favor of Minnesota would have been eliminated. 
