120 
TIMBER 
Eesults of Tests in Compression across Grain, and Shearing 
WITH Grain. 
(Pounds per square inch.) 
DP6C16.S. 
Number of 
Tests. 
Coinpressioii 
across grain. 
Shearing with 
grain not 
reduced for 
moisture. 
Keduced to 15 per cent, moisture. 
Longleaf Pine . . . 
1,210 
1,000 
700 
Cuban Pine ..... 
400 
1,000 
700 
Shortleaf Pine ..... 
330 
900 
700 
Loblolly Pine ..... 
690 
1,000 
700 
Reduced to 12 per cent, moisture. 
White Pine 
130 
700 
400 
Red Pine ...... 
100 
1,000 
500 
Spruce Pine ..... 
175 
1,200 
800 
Bald express ..... 
650 
800 
500 
"White Cedar 
87 
700 
400 
Douglas Spruce (Oregon) i 
41 
800 
500 
White Oak 
218 
2.200 
1,000 
Overcup Oak ..... 
216 
1,900 
1,000 
Post Oak 
49 
3,000 
1,100 
Cow Oalc 
256 
1,900 
900 
Red Oak 
57 
2,300 
1,100 
1 Actual tests on " dry " material not reduced for moisture. 
Species. 
Number of 
Tests. 
Compression 
across grain 
with indenta 
tion of 3 per 
cent. 
Shearing with 
grain not 
reduced for 
moisture. 
Reduced to 12 per cent, moisture. 
Southern Red Oalv 
Black Oak 
Water Oak 
Willow Oak 
Spanish Oak 
Shagbark Hicliory 
White Hiclcory . 
Water Hickory . 
Bitternut Hickory 
Nutmeg Hickory 
Pecan Hicltory . 
Pignut Hickory 
White Elm 
Cedar Elm 
White Ash 
Green Ash 
Sweet Gum (Satin Walnut) 
117 
40 
30 
153 
255 
135 
75 
14 
25 
72 
37 
30 
18 
44 
87 
10 
118 
2,000 
1,800 
2,000 
1,600 
1,800 
2,700 
3,100 
2,400 
2,200 
2,700 
2,800 
3,200 
1,200 
2,100 
1,900 
1,700 
1,400 
900 
1,100 
1,100 
900 
900 
1,100 
1,100 
1,000 
1,000 
1,100 
1,200 
1,200 
800 
1,300 
1,100 
1,000 
800 
This series of tests was on 4-inch by 4-iuch sticks. The results are higher than those 
obtained by Lanza on some of the same timbers, but on larger pieces ; the number of his 
tests on eagh series were fewer, 
