XXXVII.] 
KAURI PINE. 
*99 
centric circles than to the centre or pith of the tree. 
Subsequently, from the specimens above-mentioned, I 
obtained four serviceable pieces, 2 feet 6 inches in 
length, for the purpose of ascertaining their tensile 
strength, and found the maximum to lie in the piece 
marked c as before. 
Table CLXI. 
Tensile Experiments. 
N umber 
of the 
specimen. 
Dimensions of 
each piece. 
Specific 
gravity. 
Weight the 
piece broke 
with. 
Direct 
cohesion on 
1 square in. 
7 d 
8 c 
9 b 
10 a 
Inches. 
| 2 X 2 X 30 | 
525 
529 
529 
520 
lbs. 
16,244 
20,440 
17,920 
18,080 
lbs. 
4,061 
5 AIO 
4,480 
4,520 
Total. . 
2103 
72,684 
18,171 
Average . 
526 
18,171 
4,543 
Table CLXII. 
Vertical Experiments on cubes of— 
Number 
of the 
specimen. 
1 Inch. 
2 Inches. 
3 Inches. 
4 Inches. 
Crushed with 
Crushed with 
Crushed with 
Crushed with 
II—14 
15—18 
19, 20 
21, 22 
Tons. 
3*125 
3 * 5 oo 
3*125 
3-000 
Tons. 
1075 
IO'OO 
1070 
1075 
Tons. 
24*5 
24*5 
Tons. 
45*75 
48-00 
Total. . 
1275 
42 'OO 
49 *o 
93*75 
Average . 
3 *i 9 
10-50 
24*5 
46*875 
Do. per in. 
3*19 
2-625 
2-722 
2-929 
