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JOURNAL 01" rORKSTRV 



where V is the vokime in cubic feet. D the diameter at the large end in 

 inches, d the diameter at the small end in inches, and L the length in 



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Fig. ij. — Graph for finding volumes of logs in cubic feet by Sinalian formula. 



The broken line indicates that the volume of a log 32 and 34 inches in diameter at its ends 

 and 8 feet long is 47.3 cubic feet. 



feet. The solution of this problem involves an addition, followed by a 

 multiplication. Since the terminal axis of the addition is inevitably 



