526 Journal of Agricultural Research Vol. III, No. 6 
KirtTREDGE, J., Jr. Ls , a race 
ae 1913. Nove e) the chestnut bark disease (Diaporthe parasitica, Murrill) in 
Petersham, Mass. In a Harvard Forestry Club, v. 2, p. 13-22. 
MercaL¥F, Haven, and Couns, J. F. 
=) 1911. The control of the chestnut bark disease. U. 5. Dept. Agr. Farmers’ 
Bul. mat 24p., 4 fig. se 
2) MICKLEBOROUGH, JOHN: ; ge ee. are 
a 1g09. A report on the chestnut tree blight, the fungus, Diaporthe parasitica, 
Murrill. 16 p.,2pl.(zcol.). Pub. by Penn. Dept. Forestry. 
(13) Murrm., W. A. > ; 
1906. A serious chestnut disease. In Jour. N. Y. Bot. Gard., v. 7, no. 78, 
# 143-153, fig. 13-19. 
(14) RANKIN, ; : MANE: ' ; 
1912. The chestnut tree canker disease. In Phytopathology, v. 2, no. 2, p. 99. 
Bay 
cs 1912. How further research may increase the efficiency of the control of the 
chestnut bark disease. Penn. Chestnut Blight Conf., Rpt. of Proc., 
1912, p. 46-48. : 
(16) 
1913. Some field experiments with the chestnut canker fungus. - In Phytopa- 
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(17) SruDHALTER, R. A. 
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' V. 4, M0. I, p. 52. , 
PLATE LXIII 
Fig. 1.—Petri-dish culture 5044 from 12 minutes’ exposure of chestnut-bark agar, 
made on September 20, 1913, z hours and 8 minutes after the cessation of a rain, 
at station 51, located 27 feet from the nearest lesion. 
Fig. 2.—Petri-dish culture 5041 from 16 minutes’ exposure of chestnut-bark agar, 
made on September 20, 1913, 1 hour and 55 minutes after the cessation of a rain, at 
station 49, located 414 feet from the source of the spores. ‘Ten of the twelve colonies 
are those of Endothia parasitica. 
