TIMBER AND TIMBER TREES. 
[ CHAP. 
200 
TABLE CI.—IRON-BARK (AUSTRALIA). 
Transverse Experiments. 
| 
Deflections. Total Weight| y Weight 
weight Qs |reduce: 
Number | with the | Afterthe| At | required | ‘5 | to required 
ofthe | apparatus} weight | the crisis | to break && |specific) ; square 
specimen. | weighing was fo) each w bo | gravity inch: 
390 lbs. | removed. | breaking. | piece. 1000. 
Inches. Inch. Inches. Ibs. lbs. 
I 85 ze) 3°95 1,460 | 1163] 1255 | 365°0 
2 1°00 xe) 3°50 | 1,370 | 1146 | 1195 | 342°5 
3 *90 xo) 4°00 1,400 | 1142 | 1226 | 350'0 
4 1°00 ‘o 4°00 | 1,400 | 1116 {| 1254 | 350°0 
Total .! 3°75 ‘0 15°25 | 5,630 } 4567 | 4930 | 1407°5 | 
Average) 04 0 3°812 | 1,407°5] 1142 | 1232 | 351°9 
ReMARKS.—No. 1, wiry fracture, 16 inches in length ; No. 2, wiry fracture, 12 inches 
in length; No. 3, wiry fracture, 10 inches in length ; 
depth, then splintery fracture, 10 inches in length. 
TABLE CII. 
Tensile Experiments. 
Number | Dimensions : Weightthe| Direct 
of the Spscitre piece broke!cohesion on 
specimen.} each piece, & y with, |x squarein, 
Inches. | Ibs. Ibs. 
5 | 1142 34,160 ; 8,540 
6 2x2x304! 1146 | 26,880 6,720 
7 1163 | 39,480 | 9,870 
Total . 3451 | 100,520 | 25,130 
Average | 1150 | 33,507 | 8,377 
~ 
TABLE CIII. 
Vertical or Crushing Strain on cubes of 2 inches. 
No. 4, broke short to one-third 
a | N . No. 10. | No. 11. Total. | Average. | Ditto on | 
Tons. | Tons. ‘Tons. | OTE Tons. ‘Tons. : rc 
18°500 | 17°625 | 18°500 | 19°c00 | 73°625 | 18-406 | 4°601 | 
E = 960740, S = 3695. 
