XXI.] 
PYENGADU, ETC. 
133 
Table LI.—Iron-wood, or Pyengadu (Burmah). 
Transverse Experifnents. 
Number 
of the 
specimen. 
Deflections. 
Total 
weight 
required 
to break 
each 
piece. 
Specific 1 
gravity. 
Weight 
reduced 
to 
specific 
gravity 
1000. 
Weight 
required 
to break 
1 square 
inch. 
With the 
apparatus 
weighing 
390 lbs. 
After the 
weight 
was 
removed. 
At 
the crisis 
of 
breaking. 
Inches. 
Inch. 
Inches. 
lbs. 
lbs. 
I 
75 
‘OO 
4 ' 5 ° 
1240 
IISO 
1078 
310 
2 
I ’OO 
’°5 
4-60 
I250 
1225 
1020 
3 I 2-5 
3 
I 'OO 
•05 
4-90 
I49O 
1150 
I291 
3727 
4 
•85 
•OO 
3‘25 
IIIO 
U65 
953 
277-5 
5 
•90 
•00 
3 ‘ 5 ° 
1130 
1225 
922 
282-5 
6 
1-25 
•10 
475 
1420 
1143 
1242 
355 
Total . 
575 
•20 
25-5 
7640 
7058 
6506 
1910 
Average 
• 95 8 
•033 
4’ 2 5 
12737 
117633 
1084-3 
318-33 
. Nos. 1, 2, 3, and 6 broke with about 12 inches length of fracture, 4 and s 
with somewhat less. All were fibrous and wiry. 
Table LII. 
Tensile Experiments. 
Number 
of the 
specimen. 
Dimensions 
of 
each piece. 
Specific 
gravity. 
Weight the 
piece broke 
with. 
Direct 
cohesion on 
1 square in. 
7 
Inches. 
1143 
lbs. 
35 » 84 0 
lbs. 
8,960 
8 
II50 
41,440 
10,360 
9 
,2 X 2 X 30 j 
1150 
40,320 
10,080 
10 
1225 
38,640 
9,660 
11 
II65 
38,080 
9 , 52 ° 
12 
1 
1225 
37.420 
9,355 
Total . 
7058 
231,740 
57,935 
Average 
1176 
38,623 
9,656 
Table LIII. 
Vertical or Crushing Strain on cubes of 2 inches. 
No. 13. 
No. 14. 
No. 15. 
No. 16. 
No. 17. 
No. 18. 
Total. 
Average. 
Ditto on 
1 square 
inch. 
Tons. 
Tons. 
Tons. 
Tons. 
Tons. 
Tons. 
Tons. 
Tons. 
20-750 
20-625 
20-875 
20-500 
21 -250 
21 -OOO 
125-000 
20-833 
5-208 
E = 1,031940. S = 3342. 
