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ASSOCIATE 



APPENDIX I. 



EXPLANATION OF SOME TERMS USED WITH REFERENCE 

 TO CONVERTED TIMBER, ETC. 



IT may be useful to give here the following definitions of terms used 

 in the English timber trades. (See also p. 89 supra.) 



A balk is a log roughly squared. 



A plank is 11 in. broad, from 2 to 6 in. thick, and generally from 

 8 to 21 ft. in length. 



A deal is 9 in. broad and not more than 4 in. thick. 



A batten is not more than 7 in. broad. 



A square is 100 ft. superficial. 



A hundred of deals is 120. 



A load is 50 cubic feet of squared timber, or 40 cubic feet of 

 unhewn, or 600 superficial feet of inch planking. 



In France wood, especially firewood, is measured by the stere or 

 cubic metre = 35'32 cubic feet, or T31 cubic yards. 



The simplest formula, for measuring timber is : 



where C = the cubic contents in cubic feet; L = the length of the log 

 in feet ; G = one-fourth of the girth of the tree midway in its length, 

 in feet ; g = one-fourth of the girth at one end, in feet ; g' = one-fourth 

 of the girth at the other end, in feet, a deduction for bark being made 

 from each quarter-girth. 



