40 WORKING PLAN, FOREST LANDS IN ALABAMA. 
quantity of rift flooring and railroad timbers. Rift flooring is obtained 
in small quantities from 14-inch and 15-inch trees; in the 16-inch class — 
it doubles in quantity, and from there on there is a rapid and steady 
increase which far exceeds the rate of increase in the volume of the 
tree. Twoexceptions occur, namely, in the 22-inch and 25-inch classes, 
where the amount of rift flooring drops slightly. But this is explained 
by the exceptional increase in amount of railroad timbers for these 
diameters, showing that part of what might have gone into rift floor- 
ing went into these timbers. Railroad timbers are not obtained in 
considerable quantity until the 22-inch diameter is reached; from that 
point a steady increase occurs. In the lower diameters the amount of 
railroad timbers drops slightly below the previous diameter in two 
places: this is explained by exceptional increases in rift flooring. 
Small trees yield more or less finishing; but as the diameter increases, 
more and more of what would have made finishing is put into rift 
flooring, A flat and # flat flooring, and railroad timbers, so that the 
increase is not nearly so rapid as it would otherwise be. 
The next step is to convert these figures into money values. On 
request the company furnished a price list, which represents what 
at the time (February, 1904) were the average selling prices of its 
lumber, f. 0. b. at the mill. In Table XVIII several different grades 
and dimensions of lumber, for simplicity’s sake, have been combined 
under a few headings; but in the calculations to determine the money 
values of trees, each grade, and each dimension in that grade when 
it varied in price from other dimensions, was calculated separately. 
The grades obtained from trees of the various sizes were multiplied 
by the selling prices of the lumber, and the money value of the trees 
was thus determined. For example, an 18-inch tree, according to 
Table XVIII, yields 34.3 board feet of rift flooring worth from 
$14.50 to $34 per thousand feet; 43 feet of flat flooring worth from 
$8 to $16; 66.3 feet of finishing worth from $15 to $22.50; 50.9 
feet of No. 1 common boards worth from $9.50 to $12.50; 0.6 of a 
foot of No. 2 common boards worth from $8.50 to $9.75; 137.5 
feet of dimension worth from $9.50 to 516.25; 13.6 feet of S. S. E. 
timbers worth from $9 to $21.75; 3 feet of R. R. timbers worta from 
$11 to $23. Adding the amount of each grade gives the contents of 
the tree, 349 board feet; adding the value of the lumber of each grade 
gives the value of the tree, $4.65. If 349 feet from an 18-inch long- 
leaf pine are worth $4.65, then the lumber sawed from that tree has 
an average value of $13.32 per thousand board feet. These results 
are shown in Table XVIII. 
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