(78) 
Reddick, D. and Steward, V. B. Varieties of beans susceptibre. to mosaic. (Phyto- 
pathology VIII [1918], p. 530—534.) 2 
Reed, George M. Phytopathological Survey of the trees und shrubs of Prospect Par! 
and the BotanicGarden (Brooklyn). 1 Report of the first Season’s Work. (Brooklyn 
Bot. Garden Record Vol. VI [1917], p. 14-20.) > 
Regnier, R. Sur le chancre bactörien du peuplier (Micrococcus Populi). (Comp 
Rend. Acad. Sci. Paris CLXIX [1919], p. 85—88.) > 
Reh, L. Über Einfuhr-Beschränkungen als Schutz gegen die Einschleppung pflanzen- 
schädlicher Insekten. (Zeitschr. f. angew. Entomolog. IV [1918], p. 189-237.) 
— Blausäure zur Bekämpfung von Ungeziefer. (Naturwiss. Wochenschr. [191 
p. 638— 642.) 
Reinking, 0. A. Philippine economic-plant diseases. (Philippine Journ. Sci. XHI 
[1918], Sect. A., p. 165—274, ill.) ; 
— Philippine plant diseases. (Phytopathology IX [1919], p. 114—140.) 
Reynolds, E. S. Two tomato diseases. (Phytopathology VIII [1918], p. 535—54 
2 Fig.) 
Rijks, A. B. Rapport over een Onderzoek naar de Pisangsterfte op de Saleiereilanden. 
(Mededeel. Laborat. Plantenziekten [Batavia 1916], 16 pp., 6 Fig. auf 3 Tafeln.) 
Ripper, Maximilian. Bericht über die Tätigkeit der k. k. landwirtschaftlich-che- 
mischen Versuchsstation in Görz im ‚Jahre 1914. (Zeitschr. f. d. landw. Ver: 
suchswes. in Österr. XVIII [1915], p. 203 ff.) 
— Bericht über die Tätigkeit der k. k. landw.-chemischen Versuchsstation Görz il 
Jahre 1915. (Ibidem XIX [1916], p. 266 $f.) 
Roberts J. W.and Pierce L. Apple bitter rot and its control. (Farmers’ Bull. U. S. Dept. 
Agric. Nr.'938 [1918].) = 
— — Control of cherry leaf-spot. (U. S. Dept. Agric. Washington-Farmers’ Bull. 
Nr. 1053 [1919], 8 pp., 6 Fig.) : Ba: 
Roberts, R. H. „Crinkle‘‘ on northwestern greening. (Phytopathology IX ne 
p. 261—263, 2 Pis.) SE 
Robson, R. Root-knot disease of en (Journ. rcy. hort. Soc. London xur 
[1919], p. 31-67, 4 Pls.) 
Rorer, J. The fungous diseases of roses and their treatment. (Bull. Dept. = 
Trinidad and Tobago XVII [1919], p. 29-31, 1 Pl.) = 
— The wither-tip of limes. (Ibidem p. 1-3, 1 Pl,) 5 
Rose, D. H. Blister canker of apple trees; a physiological and chemical study. q i 
Gazette LXVII [1919, p. 105—146, 10 Fig.) r 
Rosenbaum, J. The origin and spread of tomato fruit rots in transit. (Phytopathelogt 
VIII [1918], p. 572—580, 1 Pl., 1 Fig.) 
Ruigers, A. A. L. Onderzoekingen over het ontijdig Afsterven van Peperranken i 
Nederlandsch-Indie. II. (Mededeel. Laborat. Plantenziekten Nr. 19, 28 pp- 
PLIEXSIVT 
— Onderzoekingen over het ontijdig Afsterven van Beer in Nederlandsch- 
Indie. III. (Ibidem Nr. 27 [Batavia 1916], 65 pp., Pl. I-XVIL) 
— De Peronospora-Ziekte der Mais (Omo Lyer). (Mededeel. Laborat. Plantenziekten 
Nr..22 [Batavia 1916], 26 pp., Pl. --VII.) 
Rzehak, Josef. Sumach und Reblaus. (Allgem. Weinzeitg. Wien [1918], p- 161 
Sanders, J. G. The discovery of European potato wart disease in Be 
(Journ. econom. Entomol. XII [1919], p. 86—90, 1 Pl.) 
Sasseer, E. R. and Dietz, H. F. Fumigation of Cattleya Orchids with hydrooyaniı 
‚acid gas. (Journ. Agric. Research Washington XV [1918], p. 263—268, 2 Pls 
x 
