X.] 
BRITISH OAK. 
6 3 
Table XXI. 
Vertical or Crushing Experiments on British Oak, 
with 16 square inches of base. 
N umber 
of the 
specimen. 
Dimensions 
of 
the pieces. 
Specific 
gravity. 
Crushed 
with 
Do. on the 
square 
inch. 
Inches. 
Tons. 
Tons. 
136 
4 X 4 X IO 
713 
34-875 
2-179 
137 
„ „ II 
6 5 8 
33-750 
2 TIO 
138 
„ 12 
639 
32 - 000 
2-000 
139 
» » 13 
665 
29-500 
I -843 
I40 
» >> 14 
752 
31-250 
1-953 
I 4 I 
» „ 15 
742 
28-500 
1-781 
I42 
„ ,, I& 
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. 
Number 
of the 
specimen. 
Dimensions 
of 
the pieces. 
Specific 
gravity. 
Crushed 
with 
Do. on the 
square 
inch. 
143 
Inches. 
3 X 3 X 2 
820 
Tons. 
32-I25 
Tons. 
3-5 6 9 
144 
4 X 4 X 2 
822 
53-I25 
3-320 
145 
b x 6 x 12 
864 
131 -OOO 
3-640 
14b 
,, „ 18 
926 
154-000 
4-277 
147 
!> >) 24 
822 
122-200 
3-394 
I48 
» .. 36 
888 
122-200 
3 094 
149 
9 x 9 x 12 
9 ' x 9'x 15 
1 -024 
223-600 
2-760 
150 
918 
247 - 8oo 
2-898 
151 
„ „ 18 
889 
244-800 
2-860 
152 
„ „ 21 
883 
247-000 
2-887 
153 
9'x io'x 15 
904 
397-000 
4-175 
154 
io'x II x 18 
794 
307-000 
2-722 
155 
,, ,, 21 
819 
327-800 
2-907 
156 
9' x 10' x 24 
905 
307 -OOO 
3-239 
