CARE AND PROTECTION OF THE FOREST 101 



better if the majority of little plants'- were 'taken out : or 

 destroyed before they are a foot h^gji:;* jTq jlo^th&f^fill, 

 would cost too much, and the forester usually leaves the 

 thicket to itself until it is about twenty years old, when he 

 thins it out in much the same way as described above. 



FIG. 35. Thinned, but will need it again 



To get a better idea as to how much ought to be cut 

 it may be said that for pine on good pine land there ought 

 not to be left more than ten trees on one square rod at the 

 age of twenty, four at forty, two at sixty, and one at a 

 hundred years, as tabulated on the following page. 



