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1926. Pine beetle control in southern Oregon and northern California. Timberman 

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1927. Manual of bark beetle control in western pine forests. U.S. Forest Serv., 58 pp. 



1928. Insect enemies of California pines and their control. Calif. Div. Forest., Dep. 

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1929. How soon do yellow pine snags fall? J. Forest. 27: 735-737. 



1936. Relative susceptibility of ponderosa pines to bark-beetle attack. J. Forest. 34: 

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1937. Climatic cycles in eastern Oregon as indicated by tree rings. U.S. Weather 

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1940. Longevity of ponderosa pine. J. Forest. 38: 597-598. 



1943. Ponderosa pine tree classes redefined. J. Forest. 41: 249-253. 



1946. A tree class slide rule. J. Forest. 44: 755-757. 



1946. Entomology in western pine silviculture. Pan-Pacific Entomol. 22(1): 1-8. 



1950. The influence of insects on ponderosa pine silviculture. J. Forest. 48: 186-1J 



1952. Insect enemies of western forests . U.S. Dep. Agr. Misc. Pub. 273, 280 pp. 

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1955. The western pine beetle. U.S. Forest Serv. Forest Pest Leafl. 1, 4 pp. 



1956. Low temperature differentials in one forest drainage. Ecology 37: 381-383. 



1958. Cone and seed insects of western forest trees. U.S. Dep. Agr. Tech. Bull. 

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(915) andR. L. Furniss. 



1937. Effects of subzero temperatures on populations of western pine beetle. J. Econ. 

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57 



