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MICKLEBOROUGH. A Report on the Chestnut Tree Blight. The Fungus 

 Diaporthe Parasitica, Murrill. Department of Forestry, Commonwealth 

 of Pennsylvania, Harrisburg, 1909. 

 MURRILL, W. A. Northern Polypores, New York, 1914. 

 PAUL, B. H. The Pine Blister. Bulletin 15, New York State Conservation 



Commission, Albany, 1916. 

 Final Report of the Pennsylvania Chestnut Tree Blight Commission. January 



i to December 15, 1913. Harrisburg, 1914. 



REYNOLDS, H. A. A Plan to Frustrate the White Pine Blister Rust in Future 

 Commercial Plantings. Bulletin 118, Massachusetts Forestry Association, 

 Boston, 1916. 

 SCHRENK, H. VON. Some Diseases of New England Conifers. Bulletin 25, 



U. S. Department of Agriculture, Washington, 1900. 

 SCHRENK, H. VON. The Diseases of the Hardy Catalpa. Bulletin 37, Bureau 



of Forestry, U. S. Department of Agriculture, Washington, 1902. 

 SCHRENK, H. VON. A Disease of the White Ash Caused by Polyporus Fraxi- 

 nophilus. Bulletin 32, Bureau of Plant Industry, U. S. Department of 

 Agriculture, Washington, 1903. 



SCHRENK, H. VON. The "Bluing" and the "Red Rot" of the Western Yellow 

 Pine, with special reference to the Black Hills Forest Reserve. Bulletin 36, 

 Bureau of Plant Industry, U. S. Department of Agriculture, Washington, 

 1903. 



SHEAR, C. L., STEVENS, N. E. and TILLER, R. J. Endothia parasitica and 

 related species. Bulletin 380, U. S. Department of Agriculture, Washing- 

 ton, 1917. 



SPAULDING, PERLEY. The Present Status of the White-Pine Blights. Circular 

 35, Bureau of Plant Industry, U. S. Department of Agriculture, Washing- 

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SPAULDING, PERLEY. European Currant Rust on the White Pine in America. 

 Circular 38, Bureau of Plant Industry, U. S. Department of Agriculture, 

 Washington, 1909. 

 SPAULDING, PERLEY. New Facts Concerning the White Pine Blister Rust. 



Bulletin 116, U. S. Department of Agriculture, Washington, 1914. 

 SPAULDING, PERLEY. The White Pine Blister Rust. Farmers' Bulletin 742, 



U. S. Department of Agriculture, Washington, 1916. 

 WEIR, J. R. Observations on the Pathology of the Jack Pine. Bulletin 212, 



U. S. Department of Agriculture, Washington, 1915. 



WEIR, J. R. Some Factors Governing the Trend and Practice of Forest Sani- 

 tation. Forestry Quarterly, Vol. 13, 1915, pp. 481-489. 

 WEIR, J. R. Mistletoe Injury to Conifers in the Northwest. Bulletin 360, 



U. S. Department of Agriculture, Washington, 1916. 



WEIR, J. R. Larch Mistletoe: Some Economic Considerations of Its Injurious 

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