15 



cheap and easily obtained. To secure proper form development it is 

 often necessary, in forest planting, to set out a much greater number 

 of plants than can remain on the area when the trees increase in size. 

 It is obvious, therefore, that the temporary portion of the stand 

 should represent as small an outlay as possible, since little returns 

 can be expected from this source. 



Sugar maple may be planted in mixture with white pine, red pine, 

 European larch, tamarack, chestnut, and red oak. Two-year-old 

 seedlings are suitable for planting, and may be obtained at a cost 

 much less than that of species with which they will be associated. 



Approved : 



JAMES WILSON, 



Secretary of Agriculture. 



WASHINGTON, D. C., May 21, 1907. 



[Cir. 100] 



O 



