ni 



-w 



J. 



■ K 



N 



rti^ 



! /, 



' '->-^ MM 



¥ I'll mc^yi 



Plate 5.— Salts of Copper on Wheat. Season 1914. .10 per cent, of Copper in 

 different forms. 



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



(f) arsenite. 



Tlate 6. — Salts of Copper on Wheat. Season 1914. .10 per cent, of Copper in 



different forms. 



Roots of plants in Plate 5. 



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



