322 



Forestry Quarterly. 



Percent, " ? ? 

 -w - i\, c, 



400 



<oo 



700 

 .7QQD- 



900 



1000 

 joooa. 



400 



JOO 



'suuo 



This is a convenient substitution for Pressler's table of numbers, 

 and as accurate as the formulae themselves. 



Hilfstafel sur Zuzvachserhebung. Forstwissenschaftliches Centralblatt. 

 April, 191 1. Pp. 200-1. 



An extensive study of the selection forest 



Value by Wernick brings much of interest, new 



of and old. In the first section the question is 



Selection raised whether improvement in the results 



Forest. of private forest management can, as Mayr 



claims, be secured by the use of the selection 



system. It appears that the private forests, not in entail, which 



