Haig, I. T., Davis, K. P., and V/eidman , R. H, 



Natural regeneration in the western white pine type. U. 3. 

 Dept. Agr. Tech. Bui. 76?, 99 pp., illus. 1941. 



Helmers, Austin E. ■ 



Effect of pruning on growth of western white pine. Jour. 

 Forestry 44(9) :673-676. 1946. 



How heavily should white pine be pruned? Research Note 41, 

 5 pp., illus. Mimeo. 1946. 



Fifth year results of direct seeding with western redcedar and 

 Engelmann spruce. Research Note 42, 4 pp. Mimeo. 1946. 



Direct seeding western white pine - fifth-year results. 

 Research Note 4^+, 5 pp., tables. Ilj.meo. 1946. 



Pruning wound healing on western white and ponderosa pines. 

 Research Note 45, 6 pp., illus. llimeo. 1946. 



Results of direct seeding ponderosa pine. Research Note 46, 

 5 pp. Mimeo. 1946. 



Disintegration of girdled hemlock trees. Station Paper 17. 

 14 pp., proc. 1948. 



Early results from thinning seed spots. Research Note 58. 

 5 pp., proc. 1948. 



Kempff, Gerhard 



Some results of winter slash disposal. The Timberman, August, 

 1924. Pulp ■& Paper of Canada, October 1924. 



Nonindigenous western yellow pine plantations in northern 

 Idaho. Northwest Sci. II(2):54-58. 1928. 



.Kit chin, Paul C. 



Preliminar;/ report on chemical weed control in coniferous 

 nurseries. Jour. Forestry 18(2) :157-159. " 1920. 



Larsen, J. A., and Smith, R..J.. 



Concerning seed spots. Forestry Quarterly, vol. 11, p. 67. 

 1913. 



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