30 B. C. ENTOMOLOGICAL PROCEEDINGS, 1912. 



begin to feel a cool, tingling sensation penetrating his clothes, and a 

 little later may experience a slight congestion at the back of his head. 

 This should be a sign for him to get out into the fresh air, otherwise, 

 if no one were watching, he might sit down and go to sleep, which 

 would be fatal if he were not rescued in time to resuscitate. A few 

 minutes in the fresh air will usually dispel all effects of the symptoms 

 just referred to, though some men may be slightly intoxicated. 



I recollect on one occasion, the man who was helping to distribute 

 the liquid, went home directly we were through, and upon his arrival 

 there, his wife accused him of being drunk, and the poor fellow was 

 a total abstainer. 



Another precaution should be taken, to see that no one smoking 

 pipe or cigar comes an>'where near the chamber in which Carbon 

 Bisulphide is being distributed. The gas is explosive and highly 

 inflammable, and a warning should be posted on any building where 

 it is confined. 



Cubic space measurement for deciding the quantity to be used does 

 not always work successfully. If the charge by space measurement 

 does not equal one pound of Carbon Bisulphide for every ton of grain 

 confined in the space, sufficient chemical should be added to equal that 

 quantity. 



I do not know of any insect confined in grain, roots or fruit, 

 which was properly charged with Carbon Bisulphide for thirty-six 

 hours, that has ever survived. Some insects require heavier charges 

 and longer exposures than others. 



When Japanese Brown Rice commenced to arrive in Vancouver, 

 the question arose as to whether the Carbon Bisulphide fumes would 

 affect the flavour of the rice. To test this, a small quantity of rice 

 that had been fumigated and a like proportion that had not been 

 fumigated were cooked in separate vessels, and given to the Japanese 

 importers and others to taste. All declared they could not detect any 

 difference in the odor or flavour of the rice. 



The same results were obtained in making tests of fruit, such as 

 pineapples, oranges, apples and pears. The flavour or condition of the 

 fruit was not affected in the least. 



When treated with proper care, the germinating power of grain, 

 seeds and bulbs is not injured, if they are perfectly dry. 



The CS2. has been used very extensively in fighting "Phylloxera" 

 in grape vineyards in France and California. For this work consider- 

 able allowance has to be made for the nature and moisture of the soil ; 

 otherwise tlie treatment may result in great injury to the vines. 



