464 



FORESTRY IN NEW ENGLAND 



GROWTH OF INDIVIDUAL TREES. 



TABLE XLIV.— ASPEN.i RATE OF GROWTH BASED ON 



QUALITY OF LOCALITY. 



Based on measurements of 409 trees. 



' Taken from U. S. Forest Service Bull. 



TABLE XLV. 



PAPER BIRCH. 1 HEIGHT AND DIAMETER 

 GROWTH. 



• Taken from U. S. Forest Service Circular 163. 2 Based on measurements of so trees. 



3 Based on measurements of 30 trees. 



