20 



PKACTICAL FORESTRY. 



trees of undesirable species likely to reproduce themselves, if repro- 

 duction of more useful kind is well assured. The great majority of 



Fig. 12.— Mixed forest in need ol an improvement cutting. The crooked old chestnut, in the center, in 



particular should be removed. 



woodlots need such cutting, and when they do, whatever wood is taken 

 from them should be cut in this way. 



358 



