TIMBER AND TIMBER TREES. [ CHAP. 
256 
TABLE CXXXV.—SpPrRUCE (CANADA). 
Transverse Experiments. 
Deflections. Total Weight . 
Numb o ear weight ee reduced Weight, 
Eh er | With the | After the At required | ‘6-2 to Te eoale 
of the | apparatus} weight | thecrisis | tobreak | 8 | specific] ‘© >re@ 
specimen. | Weighing was o each woo | gravity} * ick 
390 lbs. | removed. | breaking. | piece. 600. ach 
Inches, Inch. Inches. Ibs. Ibs. 
I 1°25 06 6°25 696 451 | 926] 112°75 
2 1'20 05 5°00 719 485 | 890 | 121°25 
3 oe 8) "04 3°75 556 510) 654 | 127°50 
4 1°30 ‘07 5°75 709 490 | 867 | 122°50 
Total 4°90 "22 20°75 2680 | 1936 | 3337 | 48400 
Average} 1°225 055 5°187 670 484} 834 | 121°00 
RemMARKS.—No. 1 broke with about 12 inches length of fracture; 2, 3, and 4 with 
only a little less, 
TABLE CXXXVI. 
Tensile Experiments. 
(Dimensions of each piece, 2 X 2 X 30 inches, s.g. 484.) 
— No. 5. | No.6. | No.7. | No.8. | Total. | Average. 
5 a Ibs. Ibs. Tbs. Ibs. Ibs. tbs. 
an 13, 104 | 19,040 | 13,440 | 17,360 | 62,944 | 15,736 
Direct cohesion on 
I square inch 
3,276] 4,760} 3,360] 4,340] 15,736] 3,934 
TABLE CXXXVII. 
Vertical or Crushing Strain on cubes of 2 inches. 
No. 9. | No. ro. | No. 11.) No, 12 | No. 13.| No. x4. | Total. |Average.| Ditto on 
I square 
Tons. | Tons. | Tons. | Tons. | Tons. | Tons. | Tons. | Tons. inch. 
goo | 8875 | 7°75 | 8:875 | 8°75 | 8°75 | 52°00 | 8°666 | 2°166 
E = 771800, S= 1759. 
