PLATE XXIX 

 Barley plants showing growth as affected by various salts in clay-adobe soil. 



Fig. I. — A, B, Growth with 0.2 per cent of sodium chlorid alone. C, D, Growth 

 with 0.2 per cent of sodium chlorid and 0.2 per cent of sodium carbonate. E, Growth 

 with 0.2 per cent of sodium carbonate alone. 



Fig. 2. — A, B, Growth with 0.2 per cent of sodium chlorid alone. C, D, Growth 

 with 0.2 per cent of sodium chlorid and 0.5 per cent of sodium sulphate. E, F, Growth 

 with 0.2 per cent of sodium sulphate alone. 



(218) 



