PLATE II 



Fig. I. — Effect of varying amounts of carbon bisulphid on mustard; A, B, soil 

 untreated; C, D, soil treated with 0.5 per cent of carbon bisulphid; E, F, soil treated 

 with I per cent of carbon bisulphid; G, H, soil treated with 2 per cent of carbon 

 bisulphid. 



Fig. 2. — Effect of carbon bisulphid on clover in peat soil; .4, B, soil untreated; 

 C, D, soil treated with 2 per cent of carbon bisulphid. 



Fig. 3. — Effect of carbon bisulphid on buckwheat in sand cultures; A, B, soil 

 untreated; C, D, soil treated with 2 per cent of carbon bisulphid. 



