56 COBB, N. A.— Notes on Diseases of Plants. 



Agr. Gaz. N. S. Wales, Vol. II, p. 57. 



For peach rust, recommends burning the leaves and spraying the 

 trees in winter with S. of I. (1 lb. to 8 gals, of water.) 



57 COCHRAN, ( ).— Ceylon Manual of Chemical Analysis, 



p. 202. 



58 COHN, ( J.— Beitrage zur Biologie der Pflanzen. (1870). 



s. 119. 



Iron in cell walls of algae as incrustation. 



59. COSTE, H. — Instruction pratique sur les traitements a 

 effecteur contre le mildew et l'anthracnose. 



Ann. Soc. d'hort, et d'hist. nat. de l'Herault. 2 ser., T. XXIII, 

 (1891) pp. 178-182. 



Apply a warm 50 per cent solution of S. of I. with brush or spray 

 before growth starts in the springtime. On making up the 

 solution moisten the crystals with sulphuric acid before dissolv- 

 ing. 



60 COSTE-FLORET.— Role du sulphate de fer. 



Prog. Agr. et Vit., 26, (1896), Nos. 42, pp. 434-44°; 43, PP- 463- 

 467; 44, PP- 496-504- 



Favorable results claimed for calcareous soils. Efficacious as pro- 

 ducing secondary reactions. In large quantity is a corrosive. A 

 palliative with chlorosis not a remedy. 



61 CRAIG, J. — Grape Anthracnose. 



Report of Horticulturist. 



Appendix to Rpt. Min. Agr. Canada. 



Experimental Farms Reports 1892, pp. 99-101. 



62 CRAIG, J. — Small Fruits, Grapes (Sphaceloma Ampeli- 



num). 



Rpt. of Horticulturist. 



Appendix to Rpt. Min. Agr. Canada. 



Experimental Farms Reports, 1891, p. 125. 



A solution of S. of I., 1 lb. to 10 lbs. water was used as a wash. 

 The treatment was ineffectual in preventing the spread of the dis- 

 ease. 



63 CROCKER, E. F — (Destruction of Ustilago cucumis-.) 



In Griffith's, A Treatise on Manure, p. 302. 



