164 Forestry Quarterly. 



Applying these figures to the 20 per cent, cruise made of the 

 hundred acre lot on which the red pine stood we find that the 

 average stand per acre was 4,165 cubic feet of wood and bark and 

 3,830 cubic feet of wood alone, which shows that the bark formed 

 8,06 per cent, of the standing timber. 



The volume tables showing the number of board feet in the 

 merchantable logs from trees of specified diameters were based 

 upon the measurement of 141 trees ranging from 6.2 to 26.3 

 inches in diameter and were taken down to five inch tops. The 

 results were worked out by the Doyle, Old Scribner and Interna- 

 tional log rules, and in the following table an extra column has 

 been inserted for sake of comparing the volume of red pine of 

 specified diameters in Cass County, Minnesota, with that of the 

 trees on the south shore of Lake Nipissing. The Cass County 

 table was based on measurements made on 1,166 trees ranging 

 from 10 to 34 inches in diameter and worked out by the Old 

 Scribner log rule. 



LUMBER CONTENTS OF RED PINE IN RELATION TO 



DIAMETERS. 

 D. B. H. Doyle Scale- Scribner Scale. International Scale. 



Ont. Minn. 



