14 
BULLETIN 1061, U. S. DEPARTMENT OF AGRICULTURE. 
figures of amounts per acre are consequently much higher than those 
that would result from the cutting of ordinary stands. In the use 
of such ideal tables there is always great danger of overestimating 
the amount of timber that is produced and may be cut from average 
stands as they are commonly found. 
CROSSTIES AND CORDWOOD PRODUCTION. 
The approximate numbers of crossties and cords of wood (with 
the bark and without the bark) produced in well-stocked stands at 
different ages are shown in Table 4. These figures should be consid- 
ered as only approximate, since various factors enter in to determine 
the rate of growth and production of merchantable timber. Three 
qualities of situation are shown under the headings of good, average, 
and poor land. The yields are based upon the number and sizes of 
trees as counted and measured in stands and upon the computed num- 
ber of ties and cords that can be cut from trees of different sizes ; the 
figures do not represent amounts actually cut. 
The information contained in Tables 5 and 6 will be found useful 
in calculating the numbers and grades of ties that can be obtained 
from trees of different sizes. The sizes of the standard grades of ties 
are : No. 1, 6 by 6 inches; No. 2, 6 by 7 inches; No. 3. 6 by 8 inches; 
No. 4, 7 by 8 inches; Xo. 5, 7 by 9 inches. The standard lengths are 
8 and 8J feet. Table 6 shows the number of ties by grades that can 
be cut from trees of different sizes, no allowance being made for de- 
fects. For example, trees measuring 15 inches in diameter at breast 
height and 60 feet in height will, on the average, cut out three grade 
No. 2 ties, one grade No. 4 tie, and one grade No. 5 tie. Table 5 gives 
the total number of ties without specifying the grades. Copies of 
specifications for ties may be secured from the local railroad agent or 
can be found in Farmers' Bulletin 1210, Measuring and Marketing 
Farm Timber. 
Table 4. — Crossties and cordicood (pulpwood or fuel wood) produced per acre by 
well-stocked, even-aged stands of longleaf pine at different ages. (Approxi- 
mate.) 
Age 
of 
stand. 
6 in. by 
Cordwood. 
8 in. by 8 ft 
Wood with bark (fuel 
wood, etc.). 
Peeled wood (pulp 
wood, etc.). 
Better 
land. 
Medium 
land. 
Poorer 
land. 
Better 
land. 
Medium 
land. 
Poorer 
land. 
Better 
land. 
Medium 
land. 
Poorer 
land. 
Years. 
20 
30 
40 
50 
60 
70 
Ties. 
Ties. 
Ties. 
Cords. 
24 
49 
61 
70 
78 
84 
Cords. 
14 
29 
39 
48 
55 
62 
Cords. 
3 
8 
17 
26 
33 
40 
Cords. 
19 
39 
51 
59 
66 
72 
Cords. ' Cords. 
10 2 
21 6 
230 
440 
610 
750 
870 
30 
245 
385 
510 
620 
50 
160 
270 
370 
31 
39 
45 
51 
13 
20 
26 
31 
