104 Botanisches Centralblatt. 



Brooks, F. T. 1915. A disease of plantation rubber caused by Ustu- 



lina zonata. (N. Phytologist. XIV. p. 142—164. 6 f.) 

 Burkhardt, F. 1915. Dem Gemüsebau schädliche Wurzelfliegen und 



ihre Bekämpfung. (Flugbl. Kaiser Wilhelm Inst. Landw. Bromberg. 



1915. 20. 2 pp.) 

 Burkhardt, F. 1915. Die Bekämpfung der Kohlhernie und des Kohl- 



gallenrüsslers (Ceutorhynchus sulcicoUis Gyll). (Flugbl. Kaiser 



Wilhelm Inst. Landw. Bromberg. 1915. 19. 2 pp. 1 A.) 

 Burkhardt, F. 1915. Die Bekämpfung des Getreidelaufkäfers Zabrus 



tenebrioTdes Goeze (gibbus F.). (Flugbl. Kaiser Wilhelm Inst. 



Landw. Broraberg. 1915. 21. 2 pp. 1 A.) 

 Burkhardt, F. 1915. Die Zwergzikade (Jassus sexnotatus Fall.; und 



ihre Bekämpfung. (Flugbl. Kaiser Wilhelm Inst. Landw. Bromberg. 



1915. 18. 2 pp.) 

 Drayton, F. L. 1915. The Rhizoctonia lesions on potato stems. 



(Phytopathology. V. p. 59 — 63. ill.) 

 Edson, H. A. 1915. Seedling diseases of sugar beets and their relation 



to root-rot and crown-rot. (Journ. agr. Res. IV. p. 135 — 168. 11 pl.) 

 Fawcett, G. L. 1915. Fungus diseases of coffee in Porto Rico. (Bull. 



Porto Rico agr. Exp. Stat 1915. 17. 29 pp. 8 pl. 9 f.) 

 Fawcett, H. S. 1915. The known distribution of Pythiacystis citroph- 



thora and its problable relation to mal di gomma of Citrus. 



(Phytopathology.. V. p. 66—67.) 

 Gentner, G. 1915. Das Saatgut als Träger von Krankheitskeimen. 



(Jahrber. Ver. angew. Bot. XII. p. 28—43.) 

 Goverts, W. J. 1915. Vom Kopfsalat, dessen Feinde und deren 



Bekämpfung. (Schleswig-Holsteinische Zschr. Obst- u. Gartenb. 



1915. p. 83—85.) 

 Hartley, C. 1915. Injury by desinfectants to seeds and roots in sandy 



soils. (Bull. U. S. Dep. Agr. 1915. 169. 35 pp. 2 f 1 pl.) 

 Hartley, C. and T. C. Merrill. 1915. Storm and drouth injury to foliage 



of ornamental trees. (Phytopathology. V. p. 20 — 29. 3 f.) 

 High, M. M. 1915. Cactus Solution as an adhesive in arsenical sprays 



for insects. (Bull. U. S. Dep. Agr. 1915. 160.) 

 Kuraz, R. 1915. Physiologische Wirkung des Insektenpulvers aus 



den staatlichen Kulturen der Arzneipflanzen zu Korneuburg bei 



Wien. (Arch. f. Chem. u. Mikrosk Wien. 1915. p. 1 — 17. 1 F.) 

 Lutman, B. F. and N. F. Johnson. 1915. Some observations on ordinary 



beet scab. (Phytopathology. V. p. 30—34. 4 f.) 

 Pethybridge, G. H. -1915. Investigations on Potato diseases. (Journ. 



Dep. Agr. and tech Inst. Ireland. XV. p. 491—526.) 

 Pierce, R. G. 1915. Chestnut blight in Nebraska. (Phytopathology. 



V. p. 74.) 

 Pool, V. W. and M. B. Mc Kay. 1915. Phoma betae on the leaves of 



the sugar beet. (Journ. agr. Res. IV. p. 169—177. 1 pl.) 

 Rogers, J. T. and G. F. Gravatt. 1915. Notes on the chestnut bark 



disease. (Phytopathology. V. p. 45—47.) 

 Rumbold, C. 1915. Notes on chestnut fruits infected with the chestnut 



blight Fungus. (Phytopathology. V p. 64-65.) 

 Schander, R. und F. Krause. Zur Mäusefrage. (Fühlings landw. Ztg. 



LXIV. p. 215—232. 4 A.) 

 Shapovalov, M. 1915. Effect of temperature on germination and 



growth of the common potato-scab organism. (Journ. Agr. Res. 



IV. p. 129—133. 1 pl.) 

 Sorauer, P. 1915. Neue Theorie des Gummiflusses. [Schluss]. (Zschr. 



f. Pflanzenkr. XXV. p. 134-154. 6 A.) 



