Table 9. — Data on individual bending tests of Bataan apitong No. 
1921 
524 The Philippine Journal of Science 
Causes of first 
failure. 
Checks and knots. 
Do. 
Do. 
Manner 
of 
failure. 
H H H 
Defects. 
Checks and knots _ 
do 
do 
Greatest 
calcu- 
lated lon- 
gitudinal 
shear. 
Lbs. per 
sg. in. 
375 
366 
290 
1 
Modulus 
of 
elasticity. 
1,000 lbs. 
per sg. in. 
1, 410 
2, 151 
§ 
Fiber 
stress at 
elastic 
limit. 
Lbs. per 
3,259 
4,480 
2,725 
1 
Modulus 
of 
rupture. 
Lbs. per 
sg. in. 
6,546 
6,543 
1 
Weight 
(green) . 
Lbs. per 
cu. ft. 
60 
68 
s 
Moisture. 
Per cent. 
53.7 
48.2 
28.8 
43.5 
Span. 
132 
156 
132 
S 
Size. 
in. 
4.00 by 11. 90. 
4. 00 by 11.98— . 
3. 96 by 7.80—. 
Reference No. 
85 - 
86— 
37 
Average 
