USDA Forest Service 

 Research Paper INT-102 

 July 1971 



THE SEASONAL TRENDS IN MOISTURE CONTENT 

 ETHER EXTRACTIVES, AND ENERGY OF PON DEROSA 

 PINE AND DOUGLAS -FIR NEEDLES 



Charles W. Phil pot and Robert W. Mutch 



INTERMOUNTAIN FOREST AND RANGE EXPERIMENT STATION 



Forest Service 

 U. S. Department of Agriculture 

 Ogden, Utah 84401 

 Robert W. Harris, Director 



