102 
Journal of Agricultural Research 
Vol. V, No. 2 
(25) Pethybridge, G. H. 
1912. Investigations on potato diseases. (Third report.) Dept. Agr. and 
Tech. Instr. Ireland Jour., v. 12, no. 2, p. 334-360, 5 fig. 
1913. Investigation on potato diseases. (Fourth report.) In Dept. Agr. and 
Tech. Instr. Ireland Jour., v. 13, no. 3, p. 445-468, 11 fig. 
(27) -and Murphy, P. A. 
1913. On pure cultures of Phytophthora infestans De Bary, and the develop¬ 
ment of oospores. In Sci. Proc. Roy. Dublin Soc., n. s. v. 13, no. 36, 
p. 566-588, pi. 45 ~ 46 . 
(28) Peowright, C. B. 
1882, The potato disease and Mr. Wilson’s sclerotias. In Gard. Chron., 
n. s. v. 18, no. 463, p. 630. 
(29) Pringsheim, Nathanael. 
1876. Vierter Bericht der Central-Kommission fiir das agrikultur-chemische 
Versuchswesen. In Landw. Jahrb., Bd. 5, p. 1129-1141. 
(30) Smith, W. G. 
1875. The resting spores of the potato fungus. In Mo. Micros. Jour., v. 14, p. 
110-129, pi. 114-116. 
(31) - 
1883. The sclerotioids of the potato. (Abstract.) In Gard. Chron., n. s. v. 
19, no. 583, p. 413. 
(32) Smorawski, Josef. 
1890. Zur Entwicklungsgeschichte der Phytophthora infestans (Montagne) 
De By. In Landw. Jahrb., Bd. 19, p. 1-12, pi. 1. 
(33) Stewart, F. C. 
1913. The persistence of the potato late-blight fungus in the soil. N. Y. State 
Agr. Exp. Sta. Bui. 367, p. 357 ~ 3 61 * 
(34) Unger, Franz. 
1847. Beitrag zur Kenntniss der in der KartofTelkrankheit vorkommenden 
Pilze und der Ursache ihres Entstehens. In Bot. Ztg., Jahrg. 5, Stuck 
18, p. 306-317. 
(35) VOchting, Hermann. 
1902. Uber die Keimung der Kartoffelknollen. In Bot. Ztg., Jahrg. 60, Abt. 1, 
Heft 55, p. 87-114, pi. 3-4. 
(36) Ward, H. Marshall. 
1901. Disease in plants. 309 p. London. 
(37) WlESON, A. S. 
1882. The potato disease. In Gard. Chron., n. s. v. 18, no. 458, p. 460-461, 
fig. 74-78'. 
1891. Potato disease and parasitism. In Trans. Proc. Bot. Soc. Edinburgh, v. 
19, p. 65-66. 
(38) 
