A METHOD OF FUMIGATING SEED. 5 



TABLE I. Summary of experiments in fumigating against insects Continued. 



The results given in Table I indicate that the fumigation of seeds 

 by the introduction of hydrocyanic acid into an air-tight chamber, 

 from which the air has been practically exhausted, is effective, 

 provided the exposure is not less than half an hour. An exposure 

 of one-fourth hour is effective with the apparatus employed in these 

 experiments if four or more grams of cyanid are used. 



