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



slight injury was caused by an excessive dose or the treatment of too small branches. The 

 following formula was used: powdered iron sulphate 35 to 40 grams used with 20 grams olive 

 oil. — C. L. Shear. 



2011. Averna-Sacca, R. Molestias da macieria. [Diseases of apple.] Bol. Agric. [Sao 

 Paulo] 19: 430-433. 1 fig. 1918. — Diseases caused by Ascochyta sp., Pleospora herbarum, and 

 Sphacrella pomicola. — D. Reddick. 



2012. Bancroft, Wilder D. [Rev. of: Peters, Charles A. The preparation of sub- 

 stances important in agriculture. 3rd ed. 19X14 cm -, vii+81 p. John Wiley and Sons, Inc. : 

 New York, 1919. $0.80.] Jour. Phys. Chem. 23 : 444. 1919.— See Bot, Absts. 5, Entry 1100. 



2013. Barker, B. T. P. Diseases of plants and their treatment. Jour. Bath and West 

 and South Counties Soc. V, 12 : 189-193. 1917-18. — Record of the occurrence of tomato collar 

 rot, a root disease of Belladonna (Phytophthora), a bacterial disease of plum trees (hitherto 

 undescribed), a disease of alder (Fomes igniarius and Polyporus sulphurcus) , and potato "rust" 

 disease. The following diseases are being investigated: Rhizoctonia of asparagus, apple 

 leaf scorch, apple fruit spot disease and tomato collar rot.—/. I. Lauritzen. 



2014. Barker, B. T. P., and C. T. Gimingham. Further experiments on the Rhizoctonia 

 disease of asparagus. Jour. Bath and West and South Counties Soc. V, 12 : 130-134. 1 fig. 

 1917-1918. — This is an account of a second series of experiments with soil treatments for 

 Rhizoctonia violacea, var. asparagi (R. medicaginis) . For convenience carrots were used in 

 this test also in place of asparagus. The results obtained fully corroborate those of the pre- 

 vious season. The disease was reduced to a mere trace on the plot where bleaching powder 

 was applied (2 ounces per square yard) towards the end of the second week in April, i.e., a 

 few weeks before the test crop was sown. On the check plot the disease was very severe. A 

 considerable importance is attached to the time of application of soil fungicides, that is in 

 the case of Rhizoctonia not until the soil temperature begins to rise and the young growth 

 of mycelium makes a good start. — M. Shapovalov. 



2015. Bastin, S. L. Some serious potato diseases. Jour. Bath and West and South 

 Counties Soc. V, 12 : 88-106. 2 pi. 1917-18. — The following diseases of potato are described 

 and control measures suggested: late blight, scab (common), powdery scab, wart disease, 

 Rhizoctonia scab, stalk disease {Sclerotinia sclerotiorum) , Botrytis disease and black leg. — 

 J. I. Lauritzen. 



2016. Biers, P. Le parasitisme probable des Coprins. [The probable parasitism of 

 Coprinus.] Bull. Soc. Path. Veg. France 6: 159-160. 1919. — Coprinus domesticus a close 

 relative of C. radians was found associated with a disease of Broussonetia papyrifera and is 

 regarded as a probable parasite. — C. L. Shear. 



2017. Boeker, [ — ]. Der Kleekrebs. [Clover stem-rot (Sclerotinia trifoliorum).] II- 

 lustrierte Landw. Zeitg. 39: 402. Fig. 310. 1919. 



2018. Boyer, G. Etudes sur la biologie et la culture des champignons superieurs. [Biology 

 and culture of higher fungi.] Mem. Soc. Sci. Phys. Nat. Bordeaux VII, 2 : 233-344. PI. I-IV, 

 20 fig. 1918.— See Bot. Absts. 5, Entry 1931. 



2019. Brittlebank, C. C. The Iceland poppy disease. Jour. Dept. Agric. Victoria 17: 

 700-701. 1919. — A brief note discussing the occurrence of a species of Phytophthora on lee- 

 land poppy (Papaver alpinum). — J. J. Skinner. 



2020. Bronfion'iskexxer, J., W. T. Bovie, and Estelle M. Wolff. A simple arrange- 

 ment for measuring the rate of heat penetration during sterilization. [Abstract.] Absts. Bact. 

 3: 6. 1919. — "A detailed description of the apparatus, with drawings, will appear in the 

 Journal of Industrial and Engineering Chemistry." — Author. 



