REPORT OF THE SOCIETY 115 



of dusting and spraying reaching the conchision that as far as the orchard is concerned the former 

 is on the whole more satisfactory. 



Sanders, G. E. and A. Kelsall. — DksIs and DusHncj for Ivscct and Fungus Conlml. II. 

 Dusts containing Copper and Arsenic. Sci. Agric. 2: 7-14. 1921. ^A consideration of the prop- 

 erties of copper-arsenic dust which was first used in 1917. The writers conclude that this or some 

 other similar dust will be an important factor in controlling plant pests. 



Sanders, G. E. and A. Kelsall. — Spraying vs Dusting. Agric. Gaz. Can. 8 : 134-1.36. 1921. 



Saunders, W. — Spraying for rust. Dom. Exp. Farms Rept. 33. 1893. 



Sharpe, T. a. — Bordeaux mixture for potato rot. Dom. Exp. Farms Rept. 336. 1893. 



Shutt, F. T. — Chemistry of the copper and salt fungicides. Dom. Exp. Farms Rept. 171-175 

 1894. 



TiCE, C.—Seed Potato Certification in British Columbia. Agric. Gaz. Can. 8 : 448-4.50. 1921 . 



WiNSLOW, R. M.— Apple scab control in British Cohnnhia. Can. Hort. 40: 56-58. 1 fig. 1917. 



Whetzel, H. H.— T/ie Present Status of Plant Pathology in Agriculture. 13th Ann. Rept 

 Que. Soc. Prot. Plants for 1920-1921: 24-30. 1921.— An address given before this society. 



Zavitz, C. a. — Treatment of Smut. 23rd Ann. Rept. Ont. Agric. Coll. and Exp. Farm 

 for 1897: 170. 1898. 



Zavitz, C. A. — Cereal and Potato Diseases. 31st Ann. Rept. Ont. Agric. Coll. and Exp. 

 Farm for 1905: 182-185, 199-201. 1906. 



Zavitz, C. A. — Treatment of Grain for Smut. 33rd Ann. Rept. Ont. Agric. Coll. and Exp. 

 Farm for 1907: 179-181. 1908. 



Zavitz, C. A. — -Treatment of Grain for Smut. 34th Ann. Rept. Ont. Agric. Coll. and Exp. 

 Farm for 1908: 183-185. 1909. 



Zavitz, E. J. — Tree Disea.scs. Ann. Rept. Minister Lands, Forests and Mines, Ont. for 

 1916-1917: 155-158. 1918.— Gives the distribution of the blister rust in Ontario together with 

 measures to be adopted respecting it. 



Zavitz, E. J. — Tree Diseases. Ann. Rept. Min. Lands, Forests and Mines, Ont. for 1917- 

 1918: 155-156. 1919. — Reports the eradication of Ribes from the Provincial Forest Station in 

 Norfolk County. Four men worked for four months to do this work on an area of about 10 f 

 acres. This indicates the difficulty of such control measures on large areas of land. 



