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Blight Confer. : 70-5. 1912. 



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35:717-22. 10 My. 1912. 



22. Francis, T. E. Field work of the chestnut tree blight commission. 



Penn. Chest. Blight Confer. : 233-5. 1912. 



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1908. Ibid. 1908:33. 1909. Ibid. 1909:48. 1910. Ibid. 1910:69- 

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Stat. Bull. 137:209-25. Mr. 1912. [Illust.] 



27. Graves, A. H. The chestnut bark disease in Massachusetts. Phytop. 



2:99. Ap. 1912. 



28. Hodson, E. R. Extent and importance of the chestnut bark disease. 



U. S. Dept. Agr. For. Ser. Circ. 21 O. 1908. 



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Wiss. Wien nS 1 : 1479-81. N. 1909. 



30. Manson, M. The chestnut tree disease. Science 35 : 269-70. 16 



F. 1912. 



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Ap. 191 1. [Illust] 



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Zool. Soc. Rept. 10:96-103. Ja. 1906. 



33. Metcalf, H. Immunity of the Japanese chestnut to the bark disease. 



U. S. Dept. Agr. Bur. PI. Ind. Bull. 121': 1-4. 10 F. 1908. 



34. Metcalf, H. Diseases of ornamental trees. U. S. Dept. Agr. 



Yearbook 1907: 489-90. 1908. 



35. Metcalf, H. The chestnut bark disease. Journ. Eco. Ent. 5 : 222-30. 



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36. Metcalf, H., and Collins, J. F. The present status of the chestnut 



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37. Metcalf, H., and Collins, J. F. The chestnut bark disease. Science 



31:749. 13 My. 1910. 



38. Metcalf, H., and Collins, J. F. The control of the chestnut bark 



disease. U. S. Dept. Agr. Farm. Bull. 467: 1-24. 28 O. 1911. 



39. Metcalf, H., and Collins, J. F. The present known distribution of 



the chestnut bark disease. Science 35 : 421. 15 Mr. 1912. 



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14:585-8. N. 1908. [Illust] 



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Diaporthe parasitica Murr. Penn. Dept. For. : 1-16. My. 1909. 



