74 Botanisches Centralblatt, 



Auftretens an Weizen 1915 und 1918]. (Medd. Nr. 175. Central- 



anst. försöksv. jordbruksorar. Adv. landbrukbot. Nr. 14. 11 pp. 



3 f. Stockholm, 1918.) 

 Johnson, J. and R. H. Milton, 1919. Strains of white Burley tobacco 



resistant to root-rot. (Bull. U. S. Dep. Agric. 1919. 11 pp. 4 f. 



765.) [Referring to the fungus Thielavia basicola. — Trelease.] 

 Kelleiman, K. F. 1919. The eradication of the citrus Canker. (Journ. 



Washington Ac. Sc. IX. p. 143—145.) 

 Kunkel, L. 0. 1919. Wart of potatoes: a disease new to the United 



States. (Circ. U. S. Dep. Agr. ßur. Plant. Ind. 1919. 6. 14 pp. ill.) 

 Lauritzen, J. I. 1919. The relation of temperature and humidity to 



infection by certain fungi. (Phytopathology. IX. p. 7—35.) 

 Leach, J. G. 1919. The parasitism of Puccinia graminis Tritici 



Erikss. & Henn., and Puccinia graminis Tritici-compacii Stekm. 

 & Piem. (Phytopathology. 9. p. 59—88. 3 pp.) 

 Lee, H. A. 1919. Plant pathology in Japan. (Phytopathology. IX. 



p. 178—179.) 

 Lek, H. A. A. van der 1919. Over de z. g. „verwelkingsziekten", in 



het bijzonder die, welke door Verticillium alboatrum veroorzaakt 



worden. [Verv.]. (Tijdschr. over Plantenz. XXV. p. 17—52. 2 pl.) 

 Mac Miilan, H. G. 1919. Fusarium-blight of potatoes under irrigation 



(Journ. agr. Res. XVI. p. 279-303. ill.) 

 Mc. Murran, S. M. 1919. Pecan rosette in relation to soll deficiencies 



(Bull. U. S. Dep. Agr. Washington, D. C. 1919. 756. 11 pp. ill.) 

 Mc Bestie, G. P. 1919. Inheritance of anthracnose resistance as indi 



cated by a cross between a resistant and a susceptible bean 



(Phytopathology IX. p. 141 — 152.) 

 Meihus, J. E. and L. W. Durrell. 1919. Studies on the Crown rust [Puc 



cinia coronata] of oats. (Research Bull. Iowa Agr. Exp. Stat 



1919. 49.) 

 Neger, F. W. 1919. Die ßlattrollkrankheit der Kartoffel. (Zschr. f 



Pflanzenkr. XXIX. p. 27—48. 7 A.) 

 Oortwijn Boltjes, J. 1919. lets over het kweeken van ziektevrij poot 



goed bij aardappelen. ('s Gravenhage, J. & H. van Langenhuysen 



1919 80." p. 1—31. 4 f.) 

 Piper, C. V. and H. S. Coe. 1919. Rhizoctonia in lawns and pastures 



(Phytopathology. IX. p. 89—92. 2 pl.) 

 Rankin, W. H. 1919, Manual of tree diseases. (New York, The 



Macmillan Co. 1919. XX, 398 pp. 70 f.) 

 Reddick, D. and V. B. Stewart. 1919. Additional varieties of beans 



susceptible to mosaic. (Phytopathology. IX. p. 149—152.) 

 Rose, D. H. 1919. ßlister canker of apple trees: a phvsiological and 



Chemical study. (Bot. Gaz. LXVII. p. 105—146. 10 f.) 

 Reinking, 0. 1919. Philippine plant diseases. (Phytopathology. IX 



p. 114—140.) [Annotated enumeration. under alphabetized host 



genera. — Trelease.] 

 Schoevers, T. A. C. 1919. Nieuwe ziekten, waarop gelet moet worden 



(Tijdschr. Plantenz. XXV. p. 95—98. Wordt verv.) 

 Shapovalov, M. 1919. Some potential parasites of the potato tuber 



(Phytopathology. IX. 2 f. 2 pl.) 

 Shinbo, J. 1919. Beiträge, zur Kenntnis einiger einheimischen Pflan 



zengallen im Japan, II. (Bot. Mag. Tokyo. XXXIII. p. (1)-(12) 



Japanese.) 

 Stevens, F. L. 1919. Two Illinois rhubarb diseases. (Bull. Illinois 



agr, Exp. Stat. 1919. 213. p. 299-312. 19 f.) 

 Stewart, A. 1919. A consideration of certam pathologic conditions 



