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U. 3. Department of Agricuture 



A PRELIMINARY STUDY 



OF ROOT DISEASES IN WESTERN WHITE PINE 



By 



John Ehrlich 



THE NORTHERN ROCKY MOUNTAIN 

 EOREST & RANGE 

 EXPERIMENT STATION 

 MISSOULA, MONTANA 



Eorest Service 

 U. S, Department 

 of' Agriculture 



Station Paper No. 1 



October 1939 



