502 
Journal of Agricultural Research 
Vol. XI, No. io 
(16) Dilute solutions of formaldehyde, copper sulphate, and mercuric 
chlorid are toxic to the spores. The germination of the spores is greatly 
retarded when exposed to a solution too dilute to kill them in a given 
time. 
(17) To control the podblight it is recommended that clean seed be 
selected. They should then be disinfected in mercuric chlorid, formalin, 
or copper sulphate. The plants should be sprayed in the field the first 
time when they are 1 to 2 feet tall, and often enough thereafter to keep 
the foliage covered. 
LITERATURE CITED. 
(1) Brooks, Charles. 
1906. temperature and toxic action. In Bot. Gaz., v. 42, no. 5, p. 359-375, 
12 fig. Literature cited, p. 375. 
(2) BubAk, Franz, and KabAt, J. E. 
1905. viERTER beitrag zur pilzflora VON TIROL. In Osterr. Bot. Ztschr., 
Jahrg. 55, no. 2, p. 73-79. (Continued article.) 
(3) Clark, J. F. 
1899. on the toxic effect OF DELETERIOUS agents on the germination 
AND DEVELOPMENT OF CERTAIN FILAMENTOUS FUNGI. In Bot. Gaz., 
* v. 28, no. 5, p. 289-327; no. 6, p. 378-404, 10 diagr. Bibliography, 
p. 402-404. 
(4) — 
1901. ON THE TOXIC VALUE OF MERCURIC CHLORIDE AND ITS DOUBLE SALTS. In 
Jour. Phys. Chem., v. 5, no. 5, p. 289-316, 7 fig. 
(5) Clinton, G. P. 
1906. report of the botanist. Notes on fungus diseases, etc., for 
1905. In Conn. Agr. Exp. Sta., 29th Ann. Rpt., [19041/05, p. 263-277. 
(6) Cook, M. T. 
1913. REPORT OF THE PLANT PATHOLOGIST. In N. J. Agr. Exp. Sta., 33d 
Ann. Rpt., [19111/12, p. 509-527. 
1914. REPORT OF THE PLANT PATHOLOGIST. In N. J. Agr. Exp. Sta., 34th 
Ann. Rpt., [19121/13, p. 793 " Si 7> x 3 
( 8 )- 
1915. REPORT OF THE PLANT PATHOLOGIST. In N. J. Agr. Exp. Sta., 35th 
Ann. Rpt., [1913I/14, p. 467-476. 
( 9 ) Cooke, M. C., and Ellis, J. B. 
1878. NEW jersey fjjngi. In Grevillea, v. 6, no. 39, p. 81-96. (Continued 
article.) 
(10) Coons, G. H. 
1916. FACTORS INVOLVED IN THE GROWTH AND THE PYCNIDIUM FORMATION OF 
plENODOmus fuscomaculans. In Jour. Agr. Research, v. 5, no. 16, 
p. 713-769. Literature cited, p. 766-769. 
(n) Coupin, H. 
1901. SUR LA SENSIBIEIT^ DES V^G^TAUX SUPtoEURS A DES DOSES TRES 
FaiblES dE substances ToxiquES. In Compt. Rend. Acad. Sci. 
[Paris], 1.132, no. 10, p. 645-647. 
(12) Crandall, C. S. 
1909. BORDEAUX MIXTURE. Ill. Agr. Exp. Sta. Bui. 135, p. 199-296, 8 fig. 
(13) DiEdicke, H. 
1911. DIE GATTUNG phomopsis. In Ann. Mycol., Jahrg. 9, no. 1, p. 8-35, 3 pi. 
