(104) 



Gilbert, A. H. and Bennett, C. W. Sclerotinia trifoliorum, the cause of stem rot of 

 clovers and alfalfa. (Phytopathology VII [1917], p. 432 — 442.) 



Gilbert, W. W. and Gardner, M. W. Seed treatment control and overwintering of 



cucumber angular leaf -spot. (Phytopathology VIII [1918], p. 229 — 233.) 

 Gillespie, L. J. The growth of the potato scab organism at various hydrogen ion 



concentrations as related to the comparative freedom of acid soils from the potato 



scab. (Phytopathology VIII [1918], p. 257—269, 1 Fig.) 

 Gladwin, F. E. A non-parasitic malady of the vine. (New York Agric. Experim. 



Stat. Geneva N. Y. Bull. Nr. 449 [1918], p. 99—110.) 

 Godfrey, G. H. Sclerotium Rolfsii on wheat. (Phytopathology VIII [1918], p. 



64—66, 1 Fig.) 



Goodspeed, T. H. a. o. Notes on the effects of illuminating gas and its constituents 

 in causing abscission of flowers in Nicotiana and Citrus. (Univ. California Publ. 

 Bot. V [1918], p. 439—450.) 



Gravatt, G. F. and Marshall, R. P. Arthropods and gasteropods as carries of Cronar 

 tium ribicola in greenhouses. (Phytopathology VII [1917], p. 368—373.) 



— and Posey, G. B. Gipsymoth larvae as agents in the dissemination of the white- 

 pine blister-rust. (Journ. Agricult. Research Washington XII [1918], p. 

 459—462.) 



Gregorovius, Th. Vorsicht bei Anwendung der Saatbeize Uspulum. (Mollers Deutsche 



Gartnerzeitg. XXXIII [1918], p. 167—168.) 

 Grupp, H. Vermeidung des Vermehrungspilzes. (Die Gartenwelt XXI [1917], p. 125.) 

 Giissow, H. T. The occurrence of Colletotrichum cereale Dothichiza populea, and 



Leptosphaeria Napi in Canada. (Phytopathology VII [1917], p. 450.) 



— Drowth injury to Mc Intosh apple. (Ibidem VIII [1918], p. 490—491, 1 Fig.) 



Observations on obscure potato troubles. (Ibidem VIII T1918], p. 491—495, 

 5 Fig.) 



Hall, C. J. J. van. Ziekten en plagen der cultuurgewassen in Nederlandsch-Indie in 

 1917. (Med. Labor. Plantenz. Batavia XXXIII [1918], 42 pp.) 

 De bescherming der cultuurgewassen tegen nieuwe ziekten en plagen uit het 

 buitenland. (Teysmannia XXIX [1918], p. 62—95.) 



Harreveld, P. van. Stamfybittuinen en zeefvatenziekte. (Arch. Suikerind. Ned.- 

 Indie 1918. p. 333—346.) 



Harter, L. L. A hitherto-unreported disease of okra (Abelmoschus esculentus [L.] 



Moench). (Journ. Agric. Research Washington XIV [1918], p. 207—211, 1 PL, 

 3 Fig.) 



Weimer, J. L. and Adams, J. M. R. Sweet potato storage rots. (Journ. Agric. 



Research Washington XV [1918], p. 337—368, PI. XXI— XXVII.) 

 Hartley, C. a. o. Seedling diseases of Conifers. (Journ. Agric. Research XV [1918], 



p. 521—558, 1 PI.) 

 Haskell, R. J. The spray method of applying concentrated formaldehyde solution 



in the control of oat smut. (Phytopathology VII [1917], p. 381 383.) 



Hecke, L. Die Frage der Bekampfung des Getreiderostes. (Nachrichten der Deutschen 



landw. Gesellsch. f. Osterreich [Delgefo], 1918, p. 140 142.) 



Hedgcock, G. a. o. Pinon blister-rust. (Journ. Agric. Research Washington XIV 



[1918], p. 411—424, 4 PI.) 



Hedgcock, G. G. and Hunt, N. R. Notes on Razoumofskya campylopoda. (Phyto- 

 pathology VII [1917], p. 315—316.) 



Hedicke, H. Beitrage zur Gallenfauna der Mark Brandenburg. III. (Zeitschr. f- 



wissensch. Insektenbiologie, Berlin XIII [1917] u . XIV [1918].) 



