130 



JOURNAL OF FORESTRY 



Summary of Data on Second Grozvth Hardwood Stands, obtained near Camp 

 Cornell, Tuppcr Lake, N. Y. 



(Based on si.K 1-10 acre plots measured September 14, 1920) 



Average number of trees per acre 1,750 



Average number of living trees per acre '. 1,115 (64%) 



Average number of dead trees per acre 635 (36%) 



, , . . , S Pressler' 1,998.14 



Average number of cubic feet per acre \ Schiffel^ 2,052.43 



rPressler 22.2 



Average number of cords (at 90 cu. ft.) per acre^ SchifiFel 22.8 



L Average 22.5 



^The details of Pressler's and of Schiflfel's formulae will be found in Article 

 25, on page 46 of Recknagel and Bentley : "Forest Management," John Wiley & 

 Sons, N. Y., 1919. In brief, the formulae are : 



Pressler: V^^BXH^^d 

 Schiffel: V=(|BX3b|jXH 

 Where B=lov?erbase; b ^ =base taken at one-half the height; H=height; 

 H ^ d=height at which the diameter is one-half that at the base. 



