Fire is one of the most serious enemies of this tree, both in planted 

 groves and natural forests. Protection can readily be secured by 

 plowing several furrows around the plantation. If the furrows are 

 kept free from weeds, fire will be effectually kept out. Where this is 

 not possible a path or fire lane entirely surrounding the plantation 

 should be raked free of leaves and debris. In the spring and fall, 

 when the danger from fire is greatest, the plantations should be kept 

 under observation, and all fires should be extinguished immediately. 



Approved. 



JAMES WILSON, 



Secretary. 



WASHINGTON, D. C., November 24> 1906. 



[Cir. 77] 



