15 



range for economic planting can probably be extended over a large 

 part of the plains. 



Plantations of any of the pines should be started with three-year- 

 old transplants. These should usually be spaced 4 or 5 feet apart 

 each way. In especially good situations a spacing of 6 feet apart 

 each way is suitable. 

 Approved. 



JAMES WILSON, 



Secretary of Agriculture. 



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



[Cir. 99] 



o 



