1 6 A MANUAL OF FORESTRY 



these forests are often most beautiful, but on account of their 

 uneveiiness arc usually least profitable to manage. 



A -land in which two height or age classes of considerable 

 difference, usually, are developed or are intended to be main- 

 tained, as upper story or overwood and lower story or under- 

 wood is called a two-storied forest. We sometimes have two- 

 storied forests of white birch and spruce, in which both stories 

 are of the same age, but in which the birch is considerably higher 

 o\viii to its more rapid growth. 



