42 Botanisches Centralblatt. 



Jones, L. R. 1917. Soil temperature as a factor in phytopathology. 

 (Plant World. XX. p 229—237.) 



Levin, E. 1917. Control of lettuce rot. (Phytopathology. VII. p. 392—393.) 



Lind, J. 1917. Kortfattede praktiske Anvisninger til Bekämpelse af 

 Haveplanternes Sygdomme. 3. forögede udgave. (Kjöbenhavn 1917. 

 8°. 82 pp.) 



Markowski, A. 1917. Botrytis cinerea als Parasit auf Aesculus parvi- 

 flora Walt, und Aesculus Hippocastanum. Zugleich ein infektions- 

 technischer Versuch). (Beitr. Biol. Pflanzen. XIII. p. 347—374. 

 8 F. 2 T.) 



Martin, W. H. 1917. Sclerotium bataticola. The cause of a fruit-rot 

 of peppers. (Phytopathology. VII. p. 308-312. 12 f.) 



Massey, L. M. 1917. The crown canker disease of rose. (Phytopa- 

 thology. VII. p. 408—417. 3 f.) 



Mc Cubbin, W. A. and G. G. Posey. 1917. Development of blister rust 

 aecia on white pines after they had been cut down. (Phytopatho- 

 logy. VII. p. 391—392). 



Miles, L. E. 1917. Some diseases of economic plants in Porto Rico. 

 (Phytopathology. VII. p. 345—351. 3 f.) 



Naiepa, Ä. 1917. Diptilomiopus, eine neue Eriophjndengattung. ( Verb, 

 k. k. zool. bot. Ges. LXVII. p. 226-232.) 



Naiepa, A. 1917. Neue Gallmilben. 33. u. 34. Forts. (Anz. ksl. Ak. 

 Wiss. Wien. LIV. p. 52-53, 151—153.) 



Piemeisel, F. J. 1917. Factors affecting the parasitism of Ustilago 

 Zeae. (Phytopathology. VII. p. 294-307.) 



Rands, R. D. 1917. Alternaria on Datura and potato. (Phytopatho- 

 logy. VII. p. 327—338. 4 f.) 



Rogers, J. M. and F. S. Earle. 1917. A simple and effective method 

 of protecting citrus fruits against stemend rot. (Phytopathology. 

 VII. p. 361—367.) 



Rorer, J. B. 1917. Algal disease of cacao. (Proc. agr. Soc. Trinidad 

 and Tobago. XVII. p. 345—348.) 



Spaulding, P. and R. G. Pieree. 1917. State and national quarantines 

 against the white pine blister rust. (Phytopathology. VII. p. 319—320.) 



Stevenson, J. A. 1917. An epiphytotic of cane disease in Porto Rico. 

 (Phytopathology. VII. p. 418-425. 2 f.) 



Stevenson, J. A. 1917. Lightning injury to sugar cane. (Phytopatho- 

 logy. VII. p. 317—318.) 



Stewart, V. B. 1917. A twig and leaf disease of Kerria japonica. 

 (Phytopathology. VII. p. 399—407. 6 f.) 



Stewart, V. B. 1917. The perennation of Cronartium ribicola Fisch, 

 on currant. (Phytopathology. VII. p. 448—449.) 



Voglino, P. 1917. Untersuchungen über die Wurzelfäulnis des Maul- 

 beerbaumes und die dagegen angewandten Schutzmittel in Pie- 

 mont. (Intern, agr.-techn. Rundschau. VIII. p. 669—671.) 



Voglino, P. und Bougini. 1917. Phoma endogena, ein Schmarotzerpilz 

 der Kastanien in Piemont. (Int. agr.-techn. Rundschau. VIII. 

 p. 671-672.) 



Weimer, J, L. 1917. Three cedar rast fungi, their life histories and 

 the diseases they produc*. (Bull Cornell agr. Exp. Stat 1917.390. 

 p. 507—549. f. 136—157.) 



Weir, J. R. 1917. Notes on wood-destroying fungi which grow on 

 both coniferous and deciduous trees. II. (Phytopathology. VII. 

 p. 379-380.) 



Weir, J. R. and E. E. Hubert. 1917. Cronartium cerebrum on Pinus 

 resinosa. (Phytopathologie. VII. p 450—451.) 



