14 



(22) Anderson, 0. G. and Roth, F. C. Insecticides and fungicides. Spraying 



and dusting equipment. N. Y. 1923. 



(23) Britton, W. E. Recent developments in the use of insecticides. In Conn. 



(State) Agr. Expt. Sta. Bui. 242. 1922. 



(24) Safro, V. I. An investigation of lime-suKur injury, its causes and prevention. 



Oreg. Agr. Expt. Sta. Res. Bui. 2. 1913. 



(25) Doran, William L. Laboratory studies of the toxicity of some sulphur fungi- 



cides. N. H. Agr. Expt. Sta. Tech. Bui. 19. 1922. 



APPENDIX. 



Table I, — Shoiving Treatment of Dusted Plots with Dates of Applications, Ma- 

 terials used and Percentage of Scabby Fruit. 



