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: ■ JAMES D. CURTIS is leader of the ponderosa pine and 

 , interior Douglas -fir project situated at Boise, Idaho. 



' 'I; : . He joined the Intermountain Station in 1947 and has 

 studied various aspects of ponderosa pine silvics 

 and silviculture since that time. He is a graduate 

 of the University of British Columbia and Harvard. 



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Curtis, James D. 



1964 Roots of a ponderosa pine. U.S. Dept. ot Agr. , 

 Forest Serv. , Intermountain Forest and Range Expt. 

 Sta.. Ogden, Utah. 10pp., iUus. (U.S. Forest 

 Serv. Res. Paper INT-9) 



Describes and illustrates the nature, extent, and location 

 of the roots of a 60-year-old ponderosa pine m central 

 Idaho . Compares the data with those from other invesu- 

 gators working with ponderosa pine and other species. 

 Considers some silvicultural impUcations. 



