o 
TIMBER AND TIMBER TREES, [ch. xxvn. 
Table CXX. 
Tensile Experiments. 
Number 
of the 
specimen. 
Dimensions 
of 
each piece. 
Specific 
gravity. 
\Veight the 
piece 
broke with. 
Direct 
cohesion on 
x square inch. 
Inches. 
lbs. 
lbs. 
I 
\ / 
8 o8 
28,560 
7,140 
2 
I | 
815 
27,440 
6,860 
3 
815 
23 , 5 20 
5,880 
4 
836 
22,960 
5 , 74 ° 
Total. 
3 2 74 
102,480 
25,260 
Average . 
* 
819 
25,620 
6 , 4°5 
Table CXXI. 
Vertical or Crushing Strain on cubes of 2 inches. 
No. 5. 
No. 6. 
No. 7. 
No. 8. 
Total. 
Average. 
Ditto on 
1 square 
inch. 
Tons. 
Tons. 
Tons. 
Tons. 
Tons. 
Tons. 
14-25 
15 - 
I 5' I2 5 
I 5 - 
59 *375 
14-844 
37U 
