15 



It will be seen that the values for lumber at $18 and those 

 for ties are nearly equal, with the advantage in favor of lumber. 

 At $24 per M, the values for lumber rise towards . those for 

 poles. The values for cordwood are very small, and show con- 

 clusively that it does not pay to make into wood any chestnut 

 fit for other products. 



VOLUME TABLES. 



The tables which follow show the volumes in different kinds 

 of materials for trees of different sizes, calculated from tables 

 in the United States Forest Service Bulletin 96. These were 

 based on measurements of 218 felled trees in Connecticut and 

 adjacent portions of New York. Since the conditions of growth 

 here are similar, these figures will apply to Massachusetts trees. 



Since volume tables give the average of large numbers of 

 measurements, they cannot be expected to be accurate for indi- 

 vidual trees, but only for numbers of trees growing in well- 

 stocked stands. To apply the tables, the number of trees of 

 each inch diameter class should be ascertained by measurement 

 or estimate. The average height of trees of each diameter 

 should be taken to the nearest 10 feet. The total volume can 

 then be found by multiplying the number of trees in each diam- 

 eter class by the figure in the table for the corresponding height, 

 and adding the products. 



The figures published by the State Forester of Connecticut 

 in 1906 are included in these tables for the purpose of compari- 

 son. These figures are set in heavy type. They are based on 

 over 400 trees. 



Cordwood. 



Table 6 is computed from the Forest Service table of volume 

 in cubic feet of round wood, and the table of converting fac- 

 tors percentages of solid wood in stacked cordwood to re- 

 duce these to cords. These factors are said to be conservative, 

 which probably explains why the Connecticut figures are 

 slightly larger than the corresponding ones calculated from the 

 Forest Service bulletin. 



