(107) 



Ludwig, C. A. The effect of tobacco smoke and methyl iodide vapor on the growth 

 of certain microorganisms. (Americ. Journ. of Bot. V [1918], p. 171 — 177.) 



Liistner, G. Feinde und Krankheiten der Gemiisepflanzen. Ein Wegweiser fur ihre 

 Erkennung und Bekampfung. (Stuttgart, Eugen Ulmer, 53 Abb.) 



— Die wichtigsten Feinde und Krankheiten der Obstbaume, Beerenstraucher und 

 des Strauch- und Schalenobstes. (Stuttgart 1919, 153 Abb.) 



Lyman, G. R. The relation of phytopathologists to plant disease survey work. (Phyto- 

 pathology VIII [1918], p. 219—228.) 



Mac Innes, F. J. The occurrence of Alternaria in a characteristic spot, and an apple 

 rot caused by Gliocladium viride. (Transact. Illinois Acad. Sci. X [1918], p. 

 218—229, 4 PI.) 



Mackie, W. W. A possible new fungicide (lime sulphur) for wheat and barly smut. 

 (Science N. S. XL VIII [1918], p. 515—516.) 



Macmillan, H. G. Sunscald of beans. (Journ. Agric. Research Washington XIII 

 [1918], p. 647—650, 3 PI.) 



— An epfdemie of Corn Smut following Lail. (Phytopathology VIII [1918], p. 

 584—585. ) 



Mangin, L. Sur Taction nocive des emanations de 1'usine de Chedde. (Compt. Rend. 



Acad. Sci. Paris CLXVIII [1919], p. 193—199, ill.) 

 Martell, P. Uber Pflanzenschutz. (Die Gartenwelt XXII [1918], p. 286—287.) 



Martin, G. W. Brown blotch of the Kieffer pear. (Phytopathology VIII [1918], 

 p. 234—238, 9 Fig.) 



Martin, W. H. Sclerotium bataticola. The cause of a fruit-rot of peppers. (Phyto- 

 pathology VII [1917], p. 308—312, 12 Fig.) 



— Dissemination of Septoria lycopersici Speg. by insects and pickers. (Phytopatho- 

 logy VIII [1918], p. 365—372.) 



Massey, L. M. The crown canker disease of rose. (Phytopathology VII [1917], p. 



408—417, 3 Fig.) 



— The diseases of roses. (Transact. Massachusetts hort. Soc. [1918], p. 81 — 101, 

 2 Pis.) 



— The hard rot disease of Gladiolus. (Bull. Cornell Univ. Agric. Experim. Stat. 



Nr. 380 [1916], p. 153—181, ill.) 



— More about rose diseases. (Americ. Rose Annual 1918, p. 63 — 71, ill.) 



Matz, J. Diseases and insects pests of the pecan. (Bull. Florida Agric. Exp. Stat. 



Nr. 147 [1918], p. 135—162, ill.) 

 Mc Clintock, J. A. Further evidence relative to the varietal resistance of peanuts 

 (Arachis) to Sclerotium Rolfsii. (Science N. S. XLVII [1918], p. 72—73.) 



— and Smith, L. B. True nature of spinach-blight and the relation of insects to its 

 transmission. (Journ. Agric. Research Washington XIV [1918], p. 1—59, ill.) 



Mc Cubbin, W. A. and Posey, G. G. Development of blister rust aecia on white pines 

 after they had been cut-down. (Phytopathology VII [1917], p. 391—392.) 



Mc Culloch, L. M. A morphological and cultural note on the organism (Aplanobacter 

 Stewarti n. comb. = Pseudomonas Stewarti Sm.) causing Stewarts' disease of 

 sweet corn. (Phytopathology VIII [1918 p. 440—441, 1 PI.) 



Mc Murran, S. M. Preventing wood rot in pecan trees. (Farmers' Bull. U. S. Dept. 



Agric. Nr. 995 [1918], 8 pp., 10 Fig.) 

 Mehmel, L. Cber Frostschaden und deren Sichtbarwerden im Laufe des Jahres 1917. 



(Die Gartenwelt XXII [1918], p. 37—38.) 

 Metcalf, H. The problem of the imported plant disease as illustrated by the white 

 pine blister rust. (Mem. Brooklyn bot. Gard. I 1918], p. 327—333, 2 PI.) 



