THE AUTHOR 



ROGER S. PETERSON, principal plant pathologist in charge 

 of project on native rusts of western conifers, joined the 

 Intermountain Station staff in 1962. He is headquartered 

 at the Forestry Sciences Laboratory on Utah State Uni- 

 versity campus in Logan. He formerly spent 5 years as 

 plant pathologist at the Rocky Mountain Forest and Range 

 Experiment Station at Fort Collins, Colorado. He was 

 graduated from Harvard University in biology and holds 

 master's and doctoral degrees in botany from the 

 University of Michigan. 



