274 PATHOLOGY [Bot. Absts., Vol. V, 



2090. Sanders, J. G. A handbook of common garden pests. Bull. Pennsylvania Dept. 

 Agric. I 2 : 1-24. 20 fig. 1918. 



2091. Sanders, J. G., and L. H. Wible. List of owners of commercial orchards and 

 licensed nurserymen in Pennsylvania including list of registered dealers in nursery stock. 

 Bull. Pennsylvania Dept. Agric. I 10 : 1-56. 1918.— C. R. Orton. 



2092. Schellenberg. Versuche zur Bekampfung der Peronospora. [Investigations of 

 control of grape downy mildew.] Schweiz. Zeitschr. Obst- u. Gartenbau 1918: 81. 1918. — 

 Best mixture is 1 per cent copper sulfate, 1 per cent iron sulfate and 1 per cent hydrated 

 lime. Of proprietary mixtures, Martini mixture is preferable to Bordola paste. [Through 

 abst. by Matouschek in Zeitschr. Pflanzenkr. 29: 251-255. 1919 (1920).]— D. Reddick. 



2093. Sciiilberszky, K. Hipertrofos paraszemolesok almagyiimolcsokon. [Hypertro- 

 phied lenticels on fruit of apple.] Bot. Kozlemenyek 17: 93. 1918. — The condition is thought 

 to be caused by excessive amount of water in soil. Tissue underlying hypertrophied area 

 appears water soaked. [Through abst. by Matouschek in Zeitschr. Pflanzenkr. 29: 249. 

 1919 (1920).]— D. Reddick. 



2094. Schilberszky, K. Javaslat a fekete gabonarozsda targvaban. [A lecture on black 

 rust of cereals.] Bot. Kozleinenyek 17: 43-48. 1918. — Summary in German. 



2095. Schonfeld, Leo. Beizendes Hirsesaatgutes. [Disinfecting millet seeds.] Wiener 

 landw. Zeitg. 68: 257. 191S. — In Hungary, millet seed is poured through the flame of burning 

 straw to free it from smut. Five per cent copper sulfate is effective but a solution of this 

 strength injures those seeds which are broken in threshing. [Through abst. by Matouschek 

 in Zeitschr. Pflanzenkr. 29: 255. 1919 (1920).]— D. Reddick. 



2096. Sch0yen, T. H. Betydningsfulde nyere unders0kelser over furuens blaererust. 

 [Important new investigations on Peridermium pini.] Tidsskr. Skogbruk 28: 28-29. 1920. 



2097. Skola, Vlad. Uber die Zusammensetzung der durch Rhizoctonia zersetzten Rube. 

 Composition of sugar beets destroyed by R.] Zeitschr. Zuckerind. Bohmen 42: 135-138. 1918. 



— Affected tissue contains invert sugar but no saccharose. [Through abst. by Matouschek 

 in Zeitschr. Pflanzenkr. 29: 263. 1919 (1920).]— D. Reddick. 



2098. Spiekermann. Der falsche Kartoffelkrebs. [False potato wart.] Illustr. landw. 

 Zeitg. 1918: 153. 1918.— Lesions have the appearance of true wart. Microscopic examina- 

 tion necessary for diagnosis. Cause of false wart not stated. [Through abst. by Matou- 

 chek in Zeitschr. Pflanzenkr. 29: 252. 1919 (1920).]— D. Reddick. 



2099. Spines, G. T. Damping-off and collar rot of tomatoes. Jour. Bath and West and 

 South Counties Soc. 5, 12 : 128-130. 1917-1918. — Both damping-off and collar rot of tomatoes 

 are ascribed to a fungus placed in the genus Phytophthora, but the actual species has not been 

 yet identified. From the results of certain studies it is concluded that the fungus is most 

 active and causes most damage in the first 3 or 4 months of the year and that the infection 

 may be carried on from year to year in the soil. — M. Shapovalov. 



2100. Stevens, F. L. Foot-rot diseases of wheat — historical and bibliographic. Bull. 

 Illinois Nat. Hist. Surv. 13 : 259-286. 1919.— The recent discovery of a foot-rot disease of 

 wheat in southwestern Illinois (Madison County) and the lack of agreement among American 

 and European pathologists as to the cause of this and similar diseases are the reasons given 

 by the author for presenting this preliminary statement. A brief historical review is given in 

 which attention is called to a wide variance among investigators as to symptoms and causes 

 of foot-rot. These points of disagreement are summarized. The body of the publication 



•onsists of a bibliography of 188 titles. In some cases brief abstracts are given. — H. IT. 

 Anderson. 



