228 TIMBER AND TIMBER TREES. [ CHAP. 
TaBLe CXVIII. 
Tensile Experiments. 
Number Dimensions . Weight the Direct 
of the ° Specific | piece broke | cohesion on 
specimen. each piece. gravity. with. 1 square inch. 
Inches. Ibs. Ibs. 
7 740 32,480 8,120 
8 738 31,920 7,980 
9 765 42,000 10,500 
10 satis 753 | 38640 | 9,660 
11 735 | 33,040 | 8,260 
12 760 42,280 10,570 
Total. . eine 4491 220, 360 55,090 
Average . st 748 36,727 9, 182 
TABLE CXIX. 
Vertical or Crushing Strain on cubes of — 
Number 1 Inch. 2 Inches, | 3 Inches. | 4 Inches. 
of the 
Specimens. Crushed with|Crushed with|Crushed with|Crushed with| 
Tons. Tons. Tons. Tons, 
13—16 3000 15°75 377125 62°5 
17—20 3°125 16°25 36°625 61'0 
21, 22 3°500 17°00 _ _ 
23, 24 3625 16°00 _ = 
Total. .| 13°250 65°00 73°75 123°5 
Average . 3°312 16°25 36°875 61°75 
Do, perin.} 37312 4'062 4°097 3°859 
E = 618550. = 2415. 
