IX.] 
BRITISH OAK. 
55 
however, the fact that in a hne tree, sound and 
apparently free from defect, nearly the whole of one 
side was found to be faulty, while the other half proved 
to be inferior in strength to the specimens of average 
quality noticed in the Tables V. and VI., the mean 
breaking weight of the best side being 562 lbs., as 
compared with 776 lbs. in Table V., and 837 lbs. 
in Table VI., the weaker side not affording any 
figures by which it could be compared with previous 
experiments. 
The deflections of a few specimens, under given 
weights and with various bearings, are shown in the 
following tables :— 
DEFLECTIONS: ENGLISH OAK. 
Table VIII. 
Specimens : depth, I A inch ; breadth, 2 inches ; 
length, 84 inches ; weighted with 300 lbs. 
Supports, apart. 
3 Feet. 
4 Feet. 
5 Feet. 
6 Feet. 
No. 
Sp. gr. 
Inches. 
Inches. 
Inches. 
Inches. 
25 
795 
•375 
750 
1-187 
2-500 
26 
785 
•500 
•875 
1750 
2-750 
27 
782 
•375 
75 ° 
1-625 
2-500 
28 
775 
•375 
750 
I-500 
2V25 
Total . . 
3 -I 37 
1-625 
3‘ 12 5 
6-062 
iQ -375 
Average. 
co 
•406 
•7S1 
I- 5 I 5 
2-593 
