Neue Litteratur. 57 



of tireblight. (ßull. Pennsylvania Agr. Exper. Stat. Aug. 1915. 136.) 



Quanjer, H. M. 1916. Over de beteekenis van het pootgoed voor de 

 verspreiding van aardappelziekten en over de voordeelen eener 

 behandeling met sublimaat. [On the part played by the „seed" 

 in the dissemination of potato diseases and on the advantages 

 of disinfecting them with corrosive Sublimate]. (Med R. H. L.-, 

 T.- en B.-School Wageningen. IX. p. 94—126. 1 pl. Dutch and 

 english.) 



Rolfs, F. M. 1915. A bacterial disease of stone fruits. (Mem. Cornell 

 agr. Exp. Stat. VIII. p. 381-436. f. 59-70.) 



Rubner. 1916. Das durch Artilleriegeschosse verursachte Fichten- 

 sterben. (Mitt. bayer. bot. Ges. III. p. 273-276. 3 A) 



Saillard, E. 1916. Sur les betteraves attagnees par le Cercospora 

 beticola Sacc. (C. R. Ac. Sc. Paris. CLXII. p. 47-49.) 



Schaffnit, E. und G. Lüstner. 1916. Berichte über Pflanzenschutz der 

 Pflanzenschutzstellen a. d. Kgl. Landw. Ak. ßonn-Poppelsdorf 

 und a. d. Kgl. Lehranst. f. Wein-, Obst- u. Gartenbau Geisenheim. 

 Die Vegetationsperiode 1913/14. (Bonn, P. Rost u. Co. 1916. S«. 

 98 pp. 11 A.) 



Schwangart, F. 1915. Ueber Rebenschädlinge und -nützlinge. (Natw. 

 Zschr. Forst- u. Landw. XIII. p. 380.) 



Selby, A. D., I. Heuser and J. G. Humbert. 1915. How to disinfect 

 tobacco plant beds from root-rot fungus-Thielavia. (Circ. Ohio 

 Agr. Exped. Stat. 1915. 156.) 



Stevens, H. E. 1915. Citrus canker. III. (Bull. Univ. Florida agr. Exp. 

 Stat. 1915. 128.) 



Swanton, E. W. 1916. New British plant galls. (Journ. of Bot. LIV. 

 p. 24-29.) 



.Thompson, M. T. 1915. Illustrated catalogue of North American 

 insect galls. (Nassau, N. Y., E. P. Feit. 1915. 4». 116 pp. 21 pl.) 



Tison. 1915. La maladie des oignons causee par la mouche Hylemia 

 antiqua. — Therapeutique pratique et theorique. (Ass. franc 

 Avanc. Sc. Congr. Havre, 1914. Paris, 1915. p. 987—992.) 



Tubeuf, C. von 1916. Die von Parasiten bewohnten grünen Inseln 

 vergilbender Blätter. (Natw. Zschr. Forst- u. Landw. XIV. p. 42.) 



Valleau, W. D. 1915. Varietal resistance of plums to brown rot. 

 (Journ. Agr. Res. V. p. 365-396. 2 pl.) 



Wells, B. W. 1915. A survey of the Zoocecidia on species Hicoria 

 caused by parasites belonging to the Eriophyidae and the Itonididae 

 (Cecidom3Midae). (Ohio Journ. Sc. XVI. p. 37 — 57. 2 pl.) 



Wilson, J. K. 1915. Calcium hypochlorite as a seed sterilizer. (Amer. 

 Journ. Bot. IL p. 420—427.) 



XIT. Bacteriologie. 

 Cf. XI. Bartram; XIII. Rolfs. 



Keith, S. C. 1913. Factors influencing the survival of Bacteria at 



temperatures in the vicinity of the freezing point of water. 



■Science. N. S. XXXVII. p. 877-879.) 

 Maber, S. J. 1915. The bacterial flora of trees and men. (Transv. 



Connecticut State medic. Soc. 1915.) 

 Malone, R. H. and E. Shanly. 1915. On the resistence of B. Anthra- 



cis spores to high temperature. (Trans, r. Soc. Canada. 3. IX. 



p. 85—88.) 

 Russell, E. J. 1915. Recent investigations on the production of plant 



food in the soil. (Journ. r. hört. Soc. XLI. p. 173—199.) 

 Shanly, E. 1915. On the heat resistance of bacterial spores, with a 



