64 



SECOND-GROWTH HARDWOODS IN CONNECTICUT. 



In each case the yield per acre in cubic feet was divided by the 

 converting factor corresponding to the breast-high diameter of the 

 average tree in the stand. 



Table 41. — Converting factors for second-growth hardivoods, by D. B. H. classes, with 

 corresponding diameters of the average 4-foot stick in the tree or in the stack. 





Chestnut. 



Black oaks. 



"White oaks. 



Diameter breast-high. 



Diameter 

 average 

 stick. 



Cubic 



feet 



per cord. 



Diameter 

 average 

 stick. 



Cubic 



feet 



per cord. 



Diameter 



average 



stick. 



Cubic 



feet 



per cord. 



Inches. 

 1 



Inches. 

 0.9 

 1.8 

 2.6 

 3.3 

 4.0 

 4.7 

 5.2 

 5.8 

 6.2 

 6.7 

 7.0 

 7.4 

 7.7 

 7.9 

 8.2 

 8.4 

 8.5 

 8.7 

 8.9 

 9.0 

 9.2 

 9.3 

 9.5 

 9.6 

 9.7 

 9.8 

 10.0 

 10.1 

 10.2 

 10.3 

 10.4 

 10.6 





Inches. 





Inches. 





2 



63 

 70 

 75 

 79 

 83 

 85 

 88 

 89 

 91 

 92 

 93 

 94 

 94 

 95 

 95 

 95 

 95 

 96 

 96 

 96 

 96 

 97 

 97 

 97 

 97 

 97 

 97 

 97 

 97 

 97 

 98 



1.8 

 2.5 

 3.1 

 3.6 

 4.1 

 4.5 

 4.8 

 5.0 

 5.3 

 5.4 

 5.6 

 5.7 

 5.7 

 5.8 

 5.9 

 5.9 

 6.0 

 6.0 



63 

 69 

 74 

 77 

 80 

 82 

 84 

 85 

 86 

 86 

 87 

 88 

 88 

 88 

 88 

 88 

 89 

 89 



1.8 

 2.5 

 3.1 

 3.5 

 3.9 

 4.2 

 4.5 

 4.7 

 4.9 

 5.0 

 5.1 

 5.2 

 5.2 

 5.3 

 5.4 



63 

 69 

 74 

 76 

 79 

 81 

 82 

 83 

 84 

 85 

 85 

 85 

 85 

 86 

 86 



3 



4. 



5 



6 





8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 







19 







20 





21 









22 







i " 



23. 











24. 











25. 











26 











27 











28. 











29. 











30. 











31. 











32 



















LUMBER. 



The volume tables for lumber are based on the diameters inside 

 bark and length of logs cut from trees of various sizes. Scaling was 

 done by the International rule, 1 reduced 10 per cent to allow for the 

 wide kerf cut by the circular saw of the average portable sawmill. 

 The volume in cubic feet left in topwood and branches after logs have 

 been removed is also given. This may be reduced to cords by divid- 

 ing by 80, a conservative factor. In practice it is best to total the 

 cubic feet remaining per acre before reducing to cords, rather than 

 attempt the reduction for individual trees. 



1 This rule is described and printed in IT. S. Graves's Forest Mensuration, pp. 35-38, and in Austin 

 Cary's Manual for Northern Woodsmen, pp. 137 and 232. 



