x.] BRITISH OAK. 63 
TABLE XXI, 
Vertical or Crushing Experiments on British Oak, 
with 16 square inches of base. 
Number Dimensions . Do. on the 
of the of Specific Crushed square 
specimen. the pieces, gravity. with inch. 
Inches. Tons. Tons. 
136 |4x4xI0| 713 34°875 | 2°179 
137 ” ” II 658 33°750 2°10 
138 Si Hee AZ 639 32°000 2°000 
139 ee S) 665 29°500 1°843 
140 ” »”? 14 752 31°250 1953 
141 Te S) 742 28°500 1°781 
142 ere 32) 688 40°750 2°517 
Note.—These were respectively Nos. 132, 123, 125, 124, 127, 129, and 130 of 
Table XIX., shortened after the first experiments upon them, and further seasoned 
before the second trial. 
TABLE XXII. 
Vertical or Crushing Experiments on British Oak ; 
sundry scantlings. 
Nome | Dimeniont | specie | Crashed [Poon 
specimen. the pieces. gravity, | with inch, 
Inches. Tons. Tons. 
3X 3% 2 820 32°125 3°569 
144 4X4X 2 822 537125 3320 
6x 6x 12 864° | 131°000 37640 
140 ” ” 18 926 154000 4°277 
147 |5 9 24| 822 | 122°200 | 3°394 
+ 30 888 | 122'200 3394. 
149 |9 x 9 x 12] 1'024 | 223°600 2°760 
iso | 9'x 9’x 15 g18 | 247°800 2°898 
151 Bey Gage LO 889 | 244°800 2°860 
152 wi a9. 2D 883 247°000 2°887 
153 | 9'xto'x15| 904 | 397°000 | 4°175 
154 |10'x11 x18 794 307 ‘000 2°722 
155 ” ” 21 819 327°800 2°907 
156 g/x 10'x 24 905 | 307‘000 3°239 
