142 
TIMBER AND TIMBER TREES. [chap. 
Table LXV. 
Tensile Experiments. 
Number 
of the 
specimen. 
Dimensions of 
each piece. 
Specific 
gravity. 
Weight the 
piece broke 
with. 
Direct 
cohesion on 
1 square inch. 
Inches. 
lbs. 
lbs. 
4 
j 
987 
30,240 
7,560 
5 
972 
29,120 
7,28o 
6 
2 X-2 X 30 
1080 
34,720 
8,680 
7 
954 
20, l6o 
5,040 
8 
l 
1115 
42,000 
10,500 
Total. 
5108 
156,240 
39,060 
Average . 
j 1021-6 
3 E 248 
7,8l2 
E = 832990. S = 3264. 
The following woods are-also found in the Philippine 
Islands, 
namely— 
2. 
Lauan, 
11. 
Mangachapuy, 
3- 
Banaba, 
12. 
Karra, 
4 - 
Dougon, 
13- 
Guigo, 
5 - 
Ypil, 
14. 
Camayuan, 
6. 
Lacolaco, 
i5- 
Malatapay, 
7 - 
Acle, 
16. 
Palo Maria, 
8. 
Tindalo (two sorts), 
i7- 
Mapilia, 
9 - 
Diladila, 
18. 
Mambog, 
10. 
Yacal, 
19. 
Bolongnita, 
and some of them are considered to be of a very useful 
description, Nos. 2 and 7 especially so. 
The Lauan timber (No. 2), after some experiments 
had been made on specimens 0-39371 inches square by 
39-371 inches in length, with the following results, was 
