XXIV. ] 
GREENHEART. 
155 
TaBLe LXXIV. 
Tensile Experiments. 
eee | ee | see | Ta | a, 
specimen. the pieces. gravity. with. 1 square in, 
Inches. Ibs. lbs. 
7 1152 31,920 7,980 
8 2x2X 30 1079 36,400 9,100 
9 1193 37,520 9,380 
Total. . 3424 105,840 26,460 
Average . 1141 35,280 8,820 
TaBLe LXXV. 
Vertical Experiments on cubes of— 
Number 1 Inch, 2 Inches. 3 Inches. 4 Inches, 
‘of the 
; Specimen. |Crushed with|Crushed with|Crushed with|Crushed with 
Tons. Tons. Tons. Tons. 
10—13, 7°00 27°000 57°125 93°150 
14—17 6°75 27°362 58 ‘000 92°875 
18—21 6°75 27°750 57°250 92°625 
22—25 6°50 27000 50°875 93° 500 
Total. .| 27°00 IOQ'II2 | 229°25 372°150 
Average . 6°75 27°278 57°312 93°037 
Do. per in. 6°75 6819 6°368 5814 
