1x.] BRITISH OAK. 55 
however, the fact that in a fine 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 776lbs. in Table V., and 837 Ibs. 
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, 14 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 | 1187 2°500 
26 735 *500 875 1°750 2°750 
27 782 | 375 | °750 | 17625 | 2°500 
28 775 “375 "750 | 1500 2°025 
Total. .| 3°137 1°625 | 3°125 | 67062 10°375 
Average. 784 406 *781 I°515 2°593 
