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UNITED STATES DEPARTMENT OF AGRICULTURE 
September, 1927 
Washington, D. C. 
TIMBER GROWING AND LOGGING PRACTICE 
IN THE WESTERN WHITE PINE AND LARCH-FIR 
FORESTS OF THE NORTHERN 
ROCKY MOUNTAINS 
MEASURES NECESSARY TO KEEP 
FOREST LAND PRODUCTIVE AND TO 
PRODUCE FULL TIMBER CROPS 
By 
ELERS KOCH, Assistant District Forester 
and 
R. N. CUNNINGHAM, Associate District Forest Inspector, Forest Service 
Introduction by 
W. B. GREELEY, Forester, Forest Service 
UNITED STATES 
GOVERNMENT PRINTING OFFICE 
WASHINGTON 
1927 
