



Plate 11. — Salts of Copper on Wheat. Season 1914. .01 per cent, of Copjier in 

 different forms. 



(a) No treatment ; (b) sulphate ; (c) phnspliate ; (d) carbonate ; (e) nitrate ; (f) arsenite. 

 c b a 



120 



no 



102 



Plate 12.— Salts of Copper on Wheat. Season 1914. .01 per cent, of Copper in 



different forms. 



Roots of plants in Plate 11. 



(a) No treatment; (b) sulphate; (c) phosphate; (d) carbonate; (e) nitrate. 



