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JOURNAL OF FORESTRY 



results were adjusted by the construction of curves and volume tables 

 prepared, giving the average contents of logs of each grade and diam- 

 eter class in per cents of the principal lumber grades. Thus, three 

 final tables were obtained, one for each log grade. The table for 

 Grade I logs is given below as an example of the results obtained. 



Per cents of Lumber by Grades. Sound 16 Foot Grade I Logs. 



