x11. ] BRITISH OAK. 73 
shall be less than one-fourth of the diameter of the 
piece. 
For the sided timber (Fig. 17)*, it is also agreed that 
the price is to be, for each log measuring— 
120 cub, ft. and upwards, sided contents, # load of 50 cub. ft. £ 
119 ,, to roo ft. s 2 
99 ” > 80 ? 2? 32 
79 ” bi 60 ” oo” a9 
59 a9 29 4° > a* oo 
39 Led os 20 ”? a9 ic} 
Under 20 ,, “5 BS 
the conditions being that in computing the measurement 
FIG. 174. 
ALVES Sa a + 
\NOSEENNca OA © 
Aya yeas SS 
TTT 
I ld 
FIG. 176. 
for payment of sided timber, no quarter-inches to be 
allowed in the sidings. All the timber to be so sided 
that, between the wanes,+ at half the length of the piece; 
there shall not:be less than the siding with one-eighth 
* Tt has been found in practice that a fairly grown cylindrically-shaped 
British Oak tree of 
30 inches calliper will yield sided timber of about 21 inches. 
24 99 ” ” ” 18% ” 
18 ” ” ” 12 Yo ” 
” 
and that generally about two-thirds of the calliper of the rough tree is the 
siding to be obtained from it. 
+ Wane is the natural rounded edge of the log, W Fig. 162. 
