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STATE BOARD OF FORESTRY. 



Small logs will invariably overrun this scale, and to a slightly greater 

 extent than for the Spaulding Log Rule, since the constant shown by 

 the formula is "3" instead of "2". Intermediate logs will hold up the 



133d aavoe swmcA 



scale, fall below or go above, largely depending upon the width of the 

 saw-kerf and the average dimensions of the lumber sawed. Large logs 

 will run higher than the intermediate sizes, due to the fact that the slab 

 allowance is directly proportional to the volume plus a constant The 

 following deduction shows the total waste allowance of the Scribner 

 rule expressed in per cent of total sawed out, as shown by the rule 



