BO PRACTICAL FORESTRY IN THE ADIRONDACKS. 
can be cut now, and the same amount every 16 years. In 32 years a total yield of 
3,450,000 board feet can be obtained. 
It will therefore be most profitable to cut to 12 inches. 
EXAMPLE NO. 3. 
A man owns 20,000 acres of Spruce land, from which he has cut 6,000 board feet 
per acre 12 inches and over in diameter. How much can he obtain in 20 years if at 
that time he cuts to 10 inches? 
See Table B, column 8, for the amount nearest 6,000 beard feet. It is found in the 
seventh line. In 20 years there will be about 3,034 feet per acre, cutting down to 
12 inches (Table B, column 7). If 10 inches had been made the limit at the original 
cut, there could have been obtained 7,000 instead of 6,000 board feet per acre (Table 
B, columns 1 and 3, seventh line). The stand of the trees 10 and 11 inches in 
diameter should, under careful treatment, remain constant, or 1,000 board feet, which 
amount should be added to 3,034, making 4,034, or, in round numbers, 4,000 feet. 
EXAMPLE NO. 4. 
A man owns 10,000 acres of Spruce land, from which he obtained 1,000 board feet 
per acre, 10 inches and over in diameter, 10 years ago. How soon can he cut the 
same amount? 
See Table A, column 1. In this table 27 years is given as the time in which 1,000 
feet can be obtained at the second cut. The land having been lumbered 10 years 
ago, it will require 17 years more for the required amount to grow. 
EXAMPLE NO. 5. 
A man cut his Spruce land 20 years ago, getting 1,760 board feet per acre 12 inches 
and over in diameter. How much can he get now, cutting to 12 inches? 
See Table B, column 3, for the amount nearest 1,760. It is found in the second 
line. The same amount can be taken out in 21 years after the first cut (Table B, 
column 10). At the present time, therefore, the owner can obtain nearly the amount 
of his original cut. 
EXAMPLE NO. 6. 
A man cuts his Spruce land, which yields 3,160 board feet per acre of trees 10 inches 
and over in diameter, and wishes to lumber a second time in 20 years. How much 
can he obtain? Answer. Forty-one per centof the original cut (Table A, column 5), 
or 1,296 board feet. 
IMPORTANT TREES IN MIXTURE. 
WHITE PINE. 
In the greater part of the Adirondacks the conditions are not favorable 
for the best development of the White Pine. Individual trees obtain 
a great size, but the timber is scattered and forms only a small pro- 
portion of the entire forest. Moreover, the majority of old trees are 
unsound and it is usually necessary to discard the first log. The average 
diameter is about 22 inches, and the height 100 to 120 feet. The largest 
specimen seen was cut near the shore of Round Pond, township 23. 
(Pl. XI, figs. 1 and 2.) It measured 55 inches inside the bark on the 
stump and had a total height of 153 feet. It yielded eight logs and 
sealed 25 standards. 
