oP, ae, 
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BACTERIA IN RELATION TO PLANT DISEASES. 
334 
1899. FRANK, A. B.u. SoRAUVER, PAUL. Jahresbericht 
des Sonderausschusses fiir Pflanzenschutz, 
1898. Arbeiten der deutschen Landwirt- 
a schaftsgesellschaft, Heft 38, Berlin, 1899. 
V. Oel—und Gemiisepflanzen. 18 Bakteriose, 
Pp. 105. 
Dr. Frank reports from Berlin in cabbage. ‘‘ the same bacterial 
disease which in America does great injury.'’ Mere mention. 
1899. SmitH, Erwin F. Gelatin culture media. Am. 
Nat., 1899, p. 214. 
_ Brief téxt and 1 plate showing behavior of Ps. campestris 
in various nutrient gelatins. Abstract of a paper read before 
Soc. for Plant Morphology and Physiology, Dec. 28, 1898. 
1899. Harpinc, H. A. On the occurrence of the 
black-rot of cabbage in Europe. Proc. Am. 
Asso. Adv. Sci., Aug., 1899, vol. XLVIII 
(Columbus meeting). Published Dec., 1899, 
p. 294. A brief abstract. 
The paper was subsequently translated into German and 
published in full (see next number). 
1900. Harpinc, H. A. Die schwarze Faulniss des 
Kohls und verwandter Pflanzen, eine in 
Europa weit verbreitete bakterielle Pflanz- 
enkrankheit. Centralbl. f. Bakt. etc., Mai 18, 
1900, 2te Abt., Bd. vi, No. 10, pp. 305-313, 
2 pl., 1 fig. in text, and a map showing 11 
places in Europe where the disease had been 
located by the author. Also a separate. 
vaAN Hai, C. J. J. Twee bacteriénziekten. 
Teijdschrift over Plantenziekten, Jaarg. VI, 
Afd. 5-6, 1900, pp. 169-178, 1 fig., 1 pl. 
Reports finding the di d by Pseud s cam- 
pestris in cabages sent from North Holland to the laboratory 
at Amsterdam. 
1901. SmiTH, Erwin F. Entgegnung auf Alfred 
Fisher’s ‘‘Antwort’’ etc., Centralbl. f. Bakt. 
etc., 2te Abt. Bd. vu, No. 5-6. Also a separate. 
Tafeln vit and rx and accompanying text (pp. 195-197) 
relate to Bacterium campestre. The plates are heliotypes from 
photomicrographs by the writer. 
1901. HEcKE, Lupwic. Eine Bacteriosis des Kohl- 
rabi. Zeits. f. des Landw. Versuchswesen in 
Oesterreich, tv Jahrg., Heft. 4, pp. 469 to 476, 
1 heliotype plate. Wien, 1901. Also a sepa- 
rate, pp. 8. 
Bos, J. RitzEMa. De Bacterieziekte in de 
Kool. Phytopathologisch Laboratorium Willie 
Commelin Scholten. Verslag over etc., in het 
jaar 1901. Amsterdam, 1902, pp. 13 and 14. 
HEcKE, Lupwic. Die Bacteriosis des Kohlrabi. 
Zeits. fiir landwirthschaftliche Versuchswesen 
in Oesterreich, v Jahrg., Heft 1, pp. 1 to 21. 
Wien, 1902, with 1 Crayondruck plate. Also 
a separate, 21 pp. 
REUTER reports occurrence of Ps. campestris on 
cabbage in Denmark in1g900. Zeits. f. Pflanz- 
enkr., 1902, Bd. xu, p. 293. 
Stewart, F.C. and Harpinc,H.A. Combating 
the black-rot of cabbage by the removal of 
affected leaves. Bull. No. 232, New York 
Agric. Exp. Sta., Geneva, N. Y., April, 1903, 
Pp. 43 to 65. 
Printed also later as part of an annual report. 
1900. 
1902. 
1902. 
1902. 
1903. 
Porrer, M. C. On the brown-rot of the 
Swedish turnip. With a note on the same 
disease of the cabbage. The Journal of the 
Board of Agriculture, No. 3, London, Dec., 
1903, vol. X, pp. 314-318, 1 pl. in color. 
HarpinoG, H. A. and Stewart, F. C., Vitality 
of Pseudomonas campestris (Pam.) Smith, on 
Cabbage seed. Science, July 8, 1904. New 
Series, Vol. xx, No. 497, pp. 55-56. 
This organism was obtained from cabbage seed taken from 
plants diseased by black-rot. 
On cabbage seed soaked in water to which Ps. campestris 
was added and then dried and placed in test-tubes some of the 
bacteria were alive at the end of ro months. See bull. 251. 
1904. Harvie, H. A., Stewart, F. C. and Prucna, 
M.jJ. Vitality of the cabbage black-rot germ 
on cabbage seed. Bull. 251, New York. Agric. 
Exp. Sta., Geneva, N. Y., Oct. 1904. 
1903. 
1904. 
1905. SMITH, ERWIN F., AND SWINGLE, DEANE B. 
The Effect of Freezing on Bacteria. Science, 
N. S., vol. xx1, No. 535, March 31, 1905, 
pp. 481-482. 
1907. Epwarps, S. F. Pseudomonas campestris. 
Thirty-second Annual Report of the Ontario 
Agric. Col. and Exp. Farm, 1906. Toronto, 
1907, p. 136. 
“It was observed that some kinds were more severely in- 
jured than others. For example the Jersey Kale was more 
diseased than any otherkale.” 
1907. Kirk, T. W. Black-rot of cabbage. Ann. 
Report, New Zealand Department of Agri- 
culture, 1907, vol. XV, p. 157. 
Kirk reports having seen black-rot of cabbage due to Bac- 
terium campestre in two different years in New Zealand. 
1908. Epwarps, S. F. Cabbage resistant to black-rot. 
In 33d Annual Report, Ontario Agricultural 
College and Experimental Farm for the year 
1907. Toronto, 1908, p. 134. 
1908. JANCZEWSKI. A. Pseudomonas campestris 
(Bacteriosis of cabbage). Jahresbericht for 
1907 (Russian), St. Petersburg, 1908, p. 71. 
Fawcett, H. S. Cabbage Disease. Black Rot 
(Pseudomonas campestris (Pammel) Erw. 
Smith). Florida Agric. Exp. Sta., Ann. Re- 
port for 1908, pp. LXXv-Lxxx. Also Press 
Bulletin, ror. 
Reports ‘‘serious loss to cabbage, cauliflower, and ruta-baga 
crops in the State for several years.’’ At Sutherland in 
February, 1908, ‘‘an examination of the fields showed that the 
black rot was prevalent throughout the section, destroying from 
25 to 75 per cent of the crops. Cultures made from diseased 
plants revealed the presence of yellow bacteria (Pseudomonas 
campestris) in specimens of the three plants named.” 
1908. 
1909. SACKETT, WALTER G. Black Rot of Cabbage. 
Bulletin 138, Colorado Agric. Exp. Sta., Jan. 
1909, pp. 15-18. 
Harpinc, H. A. The Constancy of Certain 
Physiological Characters in the Classification 
of Bacteria. New York, Agric. Exp. Sta., 
Tech. Bul. No. 13, June, 1910, pp. 29-34. 
Describes cultures of Ps. campestris made as test of classifica- 
tion card, Soc. American Bact. 
1910. 
