LITERATURE CITED 



Alexander, Robert R. 



1966. Stocking of reproduction on spruce-fir clearcuttings in Colorado. U.S. 

 Forest Serv. Res. Note RM-72, 8 pp., illus. 



Barr, Percy Munson 



1930. The effect of soil moisture on the establishment of spruce reproduction in 

 British Columbia. Yale Univ. School Forest. Bull. 26, 77 pp., illus. 



Daubenmire, R. 



1952. Forest vegetation of northern Idaho and adjacent Washington and its bearings 



on concepts of vegetation classification. Ecol. Monogr. 22: 301-330, illus. 



Day, R. J. 



1964. The microenvironments occupied by spruce and fir regeneration in the Rocky 

 Mountains. Can. Dep. Forest. Pub. 1037, 25 pp., illus. 



Day, R. J. and P. J. B. Duffy 



1963. Regeneration after logging in the Crowsnest Forest. Can. Dep. Forest. Pub. 

 1007 , 32 pp . , illus . 



LeBarron, R. K. and G. M. Jemison 



1953. Ecology and silviculture of the Engelmann spruce-alpine fir type. J. Forest, 

 51: 349-355. 



Lowdermi Ik , W. C. 



1925. Factors affecting reproduction of Engelmann spruce. J. Agr. Res. 30(11): 

 995-1009, illus. 



Roe, Arthur L. 



1952. Larch-Douglas-fir regeneration studies in Montana. Northwest Sci. 26(3): 

 95-102. 



Roe, A. L.,and G. M. DeJarnette 



1965. Results of regeneration cutting in a spruce-subalpine fir stand. U.S. 

 Forest Serv. Res. Pap. INT-17, 14 pp., illus. 



Smith, J. H. G. 



1955. Some factors affecting reproduction of Engelmann spruce and alpine fir. 

 British Columbia Forest Serv. Tech. Pub. T43, 43 pp., illus. 



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