LITERATURE CITED 



1. Baxter, D. V. 1952. Pathology in forest practice. John Wiley 



and Sons, Inc., New York. 



2. Boyce, J. S. 1926. Pacific Northwest conifers and their diseases 



in Great Britain. Timberman 27: 170-176. 



3. . 1927. Observations on forest pathology in Great 



Britain and Denmark. Phytopathology 17: 1-18. 



4. . 1929. The future of forest parasites in the United 



States. Jour. Forestry 27: 138-142. 



5. . 1948. Forest pathology. McGraw-Hill Book Co., 



Inc., New York. 



6. . 1954. Forest plantation protection against diseases 



and insect pests. F. A. O. Forestry Development Paper, 

 No. 3. 



7. Brown, A. B. 1930. Observations on leaf fall in the Douglas fir 



when infected with Rhabdocline pseudotsugae Syd. Ann. 

 Appl. Biol. 17: 745-754. 



8. Brown, J. M. B. 1953. Forking in young beech. Forestry Comn. 



Forest Res. Rpt., London. 1951-1952 (59). 



9. Burger, H. 1944. Johannistriebe der Larche. Ztschr. f. das 



Gesam. Forstw. 76: 10-12. 



10. Biisgen, M., and E. Munch. 1929. The structure and life of 



forest trees. John Wiley Sc Sons, Inc., New York. 



11. Butler, E. J., and S. G. Jones. 1955. Plant pathology. Macmillan 



and Co., Ltd., London. 



12. Clements, F. E., and C. L. Shear. 1931. The genera of fungi. 



H. W. Wilson Co., New York. 



13. Day, W. R. 1927. A leaf-cast disease of the Douglas fir due to 



Rhabdocline pseudotsugae Syd. Quart. Jour. Forestry 

 21: 193-199. 



14. Ellis. D. E. 1939. Conifer diseases hitherto unreported From 



the Southwest. Plant Dis. Rptr. 23:311. 



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