450 MISC. PUBLICATION 3 64, U. S. DEPT. OF AGRICULTURE 



Hedgcock, G. G., and Hunt, N. R. (8932) 



notes on peeideemium HARKNEssn. Phytopathology 10: 395-397. 1920. 



Hunt, N. R., and Hahn, G. G. (8933) 



NEW SPECIES AND RELATIONSHIPS IN THE GENUS COLEOSPORIUM. MyCOlOgia 



12: 182-198. 1920. 



— and Long, W. H. (8934) 



A DISEASE OF PINES CAUSED BY CRONARTIUM PYRTFORME. U. S. Dept. Agr. Bull. 



247, 20 pp., illus. 1915. 



— and Long, W. H. (8935) 



IDENTITY OF PERIDERMIUM FUSIFORME WITH PERIDERMIUM CEREBRUM. J0U1\ 



Agr. Research 2: 247-250, illus. 1914. 



Hubert, E. E.. and Humphrey, C. J. (8936) 



a canker of the white elm in Wisconsin. Wis. Dept. Agr. Bull. 33 : 158-163, 

 illus. 1920. 



HuNtt, W. R. (8937) 



some important tree rusts of Pennsylvania. Forest Leaves 22 (8) : 125- 

 127. 1930. 



Hunter,, L. M. (8938) 



COMPARATIVE STUDY OF SPERMOGONIA OF RUSTS OF ABIES. Bot. GaZ. 83: 1-23, 



illus. 1927. 

 Hutchinson, W. G. (8939) 



STUDIES ON THE MYCELIUM OF CRONARTIUM OOMPTONIAE ARTHUR ON PINUS 



sylvestris l. Phytopathology 19 : 741-744, illus. 1929. 

 McMurran, S. M. (8940) 



WALNUT BLIGHT (BACTERIUM JUGLANDIS (PIERCE) ERW. SMITH) IN THE EASTERN 



united states. U. S. Dept. Agr. Bull. 611, 8 pp., illus. 1917. 



Mains, E. B. (8941) 



unusual rusts on nyssa and uRTicASTRUM. Amer. Jour. Bot. 8: 442-451 

 illus. 1921. 



May, Curtis. (8942) 



the dutch elm disease. Natl. Shade Tree Conf . Proc. 6 : 91-94. 1930. 



Meinecke, E. P. M. (8943) 



experiments with repeating pine rusts. Phytopathologv 19 : 327-342, illus. 

 1929. 



(8944) 



FACULTATIVE HETEROECISM IN PERIDERMIUM CEREBRUM AND PERIDERMIUM HARK- 



nessii. Phytopathology 10: 279-297, illus. 1920. 



(8945) 



pertdermium HARKNEssn and cronartium QUERCUUM. Phytopathology 6: 



225-240. 1916. 



Metcalf, Haven. (8946) 



the dutch elm disease. Natl. Shade Tree Conf. Proc. 5: 60-61. 1929. 



(8947) 



the European larch canker. Natl. Shade Tree Conf. Proc. 5 : 56-59. 1929. 



(8948) 



OBSERVATIONS ON THE DOUGLAS FIR CANKER (PHOMOPSIS PSEUDOTSUGAE WILSON) 



in great Britain. Phytopathology 14 : 52. 1924. 



Moss, E. H. (8949) 



observations on two poplar cankers in Ontario. Phytopathology 12: 425- 

 427. 1922. 



Nelson. Ray. (8950) 



red cedar trees menace state orchards. Mich. Agr. Expt. Sta. Quart. Bull. 

 11 (4) : 199-204, illus. 1929. 



Orton, C. R.. and Ashcroft, J. M. (8951) 



save black WxVlnut from canker, W. Va. Agr. Expt. Sta. Circ. 58, 4 pp., 

 illus. 1930. 



