13° 



TIMBER AND TIMBER TREES. 



[chap. 



The specification under which Italian Oak (Fig. 21, 

 a and b) was received stood as follows, viz.: — 



Pieces cor. taining each 30 feet and upwards cube 



,, ,, ,, 20 feet and under 30 feet 



„ ,, ,, 14 feet and under 20 feet 



Pieces under 14 feet contents, sided g to 1 1 >^ inches, inclusive, 



and not less than 10 feet long 

 Pieces under 14 feet contents, sided 7 to 8 }^ inches, inclusive, 



and not less than 8 feet long 



Price per Load 

 of 50 feet. 

 £. s. d. 



FIG. 21*. 



All the timber to be winter-felled. Pieces sided 7 to S}4 inches, inclusive, to 

 have at least 8 inches curvature in 8 feet in some part of its length. 



The straight timber, excepting that sided 9 to 11 >^ inches, inclusive, to be 

 20 feet and upwards in length .... and both compass and straight timber 

 to measure in the middle between the wanes, or to have pane at that place, not 

 less than the siding of the piece with one-eighth part added thereto, and the 

 pane at the top end not to be less than three-fourths the siding of the piece. 



All the timber to be fairly tapered from end to end, and not to have more 

 wane at any part than 4 inches on the two wanes taken together ; or, if there is 

 no wane on one edge or angle, and it is only on the other edge or angle, that 

 wane is not to exceed 4 inches. 



The compass timber to be sided from 7 to 20 inches, inclusive, and no part 

 thereof, except of from 7 to iiK inches sided, to be less than 13 feet in length. 



The transverse strength of Italian Oak is shown in 

 Tables XXVII., XXIX., and XXX., and the vertical 

 strength in Tables XXVIII. and XXXI.; but there are 



