l82 



REPORT OF THE 



the volumes which correspond to the various diameters at breastheight. 

 In this way it was easy to calculate the stand of each and of all merchantable 

 species for each forest type on a given compartment and for the whole 

 area. 



Volume Tables. 



The contents of a tree of given diameter and height are got by the use 

 of volume tables in conjunction with the valuation surveys. The tables 

 have been prepared from measurements of numerous felled trees which 

 have been carefully scaled. By counting on felled trees the annual rings 

 of growth, and from other measurements, it has been possible to calculate 

 their rate of growth in diameter and height, and, consequently, in volume. 

 Knowing the rate of growth of the timber trees and their number per acre 

 as given by the surveys, the future yield after different periods and cutting 

 to different diameter limits, can be calculated. In the preparation of the 

 volume tables for this working plan, advantage was taken of lumbering 

 which was in progress during 1900 on the Brandreth Preserve (Township 

 39) under the svipervision of the Division of Forestry. Eleven hundred 

 Spruce trees and 200 Hemlock were scaled. In calculating the contents 

 of these Spruce in standards,* the trees were scaled to 6 inches in diameter 

 at the small end. The advisability of this particular diameter limit will be 

 discussed in detail later in this working plan (p. 227). As all stumps were cut 

 low under the supervision of the Division of Forestry, it is believed that the 

 vojume table shows all that can be got from a tree of the given height and 

 diameter. The volume was figured in standards, the rule in common use 

 in the Adirondacks. 



The volume table for Balsam was obtained from a study of this species 

 carried on by the Division of Forestry in the northern Adirondacks, the 

 full results of which are to be published later. 



The White Pine table was constructed from volume tables in " The 

 White Pine," ** modified to accord with height and diameter measure- 

 ments of the same species taken on Township 40. The volume tables for 

 Yellow Birch, Hard Maple, and Beech were obtained from investigations 

 of the Adirondack hardwoods made by the Division of Forestry in 1899. 

 The hardwood volume tables are expressed in the Old Scribner Rule. 



*A standard is a log 13 feet long and 19 inches wide at the top end, containing approximately 105 

 feet B. M. 



**"The White Pine," Pinchot and Graves. The Century Co , New York, i8g6. 



