62 
TIMBER AND TIMBER TREES. [chap. 
Table XIX. 
Vertical or Crushing Experiments on British Oak, 
with 16 square inches of base. 
Number 
of the 
specimen. 
Dimensions 
of 
the pieces. 
Specific 
gravity. 
Crushed 
with 
Do. on the 
square 
inch. 
Inches. 
Tons. 
Tons. 
I23 
4 x 4 x 15 
95 8 
25' 5 ° 
i - 6oo 
I24 
,, ,, 16 
972 
25-25 
1-578 
125 
,, „ 17 
934 
27-00 
1-687 
125 
n » 18 
930 
27-50 
1-719 
127 
„ „ 19 
932 
28-25 
1-762 
128 
,, „ 20 
972 
28-25 
I -762 
129 
„ » 21 
946 
28-00 
1-750 
130 
„ ,, 22 
932 
26-00 
1-625 
131 
» » 23 
921 
23'So 
1-470 
132 
» ,, 24 
1-003 
30-00 
1-875 
Table XX. 
Vertical or Crushing Experiments on British Oak, 
with 9 square inches of base. 
N umber 
of the 
specimen. 
Dimensions 
of 
the pieces. 
Specific 
gravity. 
Crushed 
with 
Do. on the 
square 
inch. 
133 
Inches. 
3x3x8 
696 
Tons. 
25-25 
Tons. 
2-8o5 
134 
„ „ 9 
597 
21 - 00 
2-333 
135 
,, ,, 10 
742 
20-25 
2-250 
Note. —These were respectively Nos. 115, 118, and 121 of Table XVIII., shortened, 
and further seasoned. 
