186 



PRINCIPLES OF AMERICAN FORESTRY. 



quantity. Each cubic foot shall constitute ten feet of a 

 thousand." 



THE NEW HAMPSHIRE RULE. 



The Number of Feet B. M. which May be Obtained 

 from a Log varies with the management of the cutting, 

 the vndth of kerf, the width of boards, whether one- or 

 two-inch boards, or some of both, are cut from the same 



