XXIV.] 
GREENHEART. 
i 55 
Table LXXIV. 
Tensile Experiments. 
Number 
of the 
specimen. 
Dimensions 
of 
the pieces. 
Specific 
gravity. 
Weight the 
piece broke 
with. 
Direct 
cohesion on 
1 square in. 
Inches. 
lbs. 
lbs. 
7 
) ( 
1152 
31,920 
7,980 
8 
> 2 X 2 X 30 < 
IO79 
36,400 
9,100 
9 
) ( 
1193 
37,520 
9 , 38 o 
Total. . 
3424 
105,840 
26,460 
Average . 
II4I 
35,280 
8,820 
Table LXXV. 
Vertical Experwients on cubes of -— 
Number 
of the 
specimen. 
1 Inch. 
2 Inches. 
3 Inches. 
4 Inches. 
Crushed with 
Crushed with 
Crushed with 
Crushed with 
10 — 13 
14—17 
18 — 21 
22—25 
Tons. 
7 - oo 
675 
675 
670 
Tons. 
27 'OOO 
27-362 
27750 
27-000 
Tons. 
57 T 25 
58 -OOO' 
57-250 
56-875 
Tons. 
93 -I 50 
92-875 
92- 625 
93 - 500 
Total . . 
27-00 
I09-II2 
229-25 
372-15° 
Average . 
675 
27-278 
57-312 
93-037 
Do. per in. 
675 
6-819 
6-368 
5-814 
