SILVICS j^ 



another forest all of whose trees are of the same age comes up 

 to take the place of its predecessor. These are called " even- 

 aged forests." 



Of a very different character is the virgin forest of the Adiron- 

 dacks or the White Mountains. Here one will find stunted 

 spruces that have not attained a height of three feet in fifty 



Fig. 2. A virgin forest of a mixed uneven-aged character. Spruce, yellow birch, paper 

 birch, maple and beech are the chief species. 



years along with one-year-oH seedlings overshadowed by larger 

 spruce and immense yellow birch that have been growing for 

 over three centuries. This is an uneven-aged, or as it is often 

 termed, a selection forest. Patches of seedlings spring up here 

 and there in small openings where a few grow into saplings and 

 finally into large trees. With such a variety of sizes and species 



