Journal of Agricultural Research 



Vol. X, No. 7 



Fig. 3.— Volatility and toxicity of theslightly volatile 

 compounds on a larger scale than in figure 2 . 





I ^i 1 1 P i 



Fig. 5. — Comparison of the 

 volatility and toxicity of 

 the esters. 



I 



Fig. 6. — Comparison of the 

 volatility and toxicity of the 

 halogen derivatives. 



