APPENDIX. 



VOLUME TABLES. 



The tables which follow show the volumes in different kinds of 

 material for trees of different sizes, and are based on over 400 meas- 

 urements of felled trees made in Connecticut, together with 552 

 similar measurements made in New York. The stands selected were 

 average ones of approximately second quality, and the figures may 

 therefore slightly underrun for first quality and overrun for third 

 quality. In either case, however, the discrepancy will probably be 

 small. 



Since volume tables give the average of large numbers of measure- 

 ments, they can not be expected to be accurate for individual trees, 

 but only for numbers of trees growing in well-stocked stands. In 

 applying the tables, the diameters of the trees in a stand, or measured 

 portion of a stand, should be calipered or estimated, to give the num- 

 ber of trees per acre of each inch diameter class. The average total 

 height of trees of each diameter should then be estimated to the 

 nearest 10 feet. The total volume for each inch class can then be 

 found by multiplying the figure given in the table for the correspond- 

 ing height by the number of trees. The sum of these products, placed 

 on an acre basis, gives the total yield per acre of the stand. 



CUBIC FEET. 



The volumes in cubic feet given in Tables 38, 39, and 40 include 

 stem and top wood, with bark, up to a minimum diameter of 2 inches. 

 Average stump heights vary from 6 inches for small trees to 21 inches 

 for large ones. 



Table 38. — Volume of chestnut in cubic feet. 





Height of tree— feet. 





Diameter breast-high. 



20 



30 



40 



50 



60 



70 



80 



90 



Total 

 basis. 





Volume. 





Inches. 

 2 



Cu.ft. 

 0.2 

 .4 



Cu.ft. 



0.3 



. 7 



1.2 



1.9 



Cu.ft. 



Cu.ft. 



Cu.ft. 



Cu.ft. 



Cu.ft. 



Cu.ft. 



Trees. 

 8 



3 



0.9 

 1.6 

 2.G 

 3.7 

 5.0 

 6.5 

 8.4 













23 



4 . 



2.1 

 3.3 

 4.6 

 6.2 

 7.9 

 10.1 











12 



5 













8 



6 





5.6 

 7.3 

 9.4 

 11.8 









15 



7 













18 



8. . 







11.0 

 13.6 







16 



9 











5 



61 



