272 A MANUAL FOR NORTHERN WOODSMEN 
To use, caliper or estimate the breast diameter of the 
tree or stand and get the total height. Then multiply 
the basal area in square feet (see table on page 238) by 
the proper factor in the table above. The product gives 
the result in cords. Considerable stands of timber 
should be divided into diameter groups. 
Example 1. A 10-inch tree is 50 feet high. How much 
cord wood is in it? .545 (basal area) X .35 (form height 
factor) = .19 cord; or 1 -4- .19 = 5J, number of such 
trees required for a cord if closely utilized. 
Example 2. A bunch of chestnut averaging 80 feet 
tall and running 13 to 17 inches in diameter, to be cut 
into extract wood, proves after calipering to have a total 
basal area of 95 square feet. 95 X .29 (form height 
factor in second table above) = 27.55, number of cords 
in the stand. 
VOLUME TABLE No. 16. HARD WOODS, IN BOARD 
FEET, BY THE SCRIBNER RULE 
(From R. A. Brotherton, Negaunee, Mich.) 
Stump 
Diameter 
Inches 
Number of Sixteen-Foot Logs 
1 
2 
3 
4 
10 
30 
50 
90 
12 
55 
95 
130 
14 
80 
140 
180 
16 
110 
180 
250 
18 
140 
250 
340 
390 
20 
190 
320 
440 
540 
22 
240 
400 
550 
650 
24 
300 
470 
640 
750 
26 
360 
560 
740 
900 
28 
420 
680 
900 
1100 
30 
500 
820 
1100 
1350 
Stumps average about 3 feet high. One and two log 
trees may either be short trees, or those that above a 
certain height are faulty or defective. 
Elm in the sizes above 18 inches yields about 10 per 
cent more than the above figures. 
