6 FARMERS' BULLETIN 199. 



rapid as the oxygen in the hmgs diminishes. The power of thought 

 is very much weakened, and the work is continued in a mechanical 

 way. Hearing and sight are both weakened. But before this weak- 

 ening process has gone far enough to be really dangerous or injurious 

 the operator probably will feel more or less dizziness. There is no 

 pain or disagreeable sensation, no desire to get away from the vapor, 

 and no sense of suffocation. But when a person has reached this 

 condition it is high time to get into the fresh air. 



Owing to the eflPect of the vapor upon heart action, persons 

 having any trouble or weakness about the heart are cautioned 

 against taking any extended part in the application of disulphid. 



It should be understood clearly by those who use it that the action 

 of the vapor is somewhat poisoning as well as suffocating. Should 

 the operator persist in remaining in the room after the dizziness 

 comes on he would be in danger of falling, and, if not discovered, 

 he would soon suffocate. Even if he should get out safely the ill 

 effects would be more marked, and a severe headache, at least, might 

 ensue. If upon the approach of dizziness the operator goes at once to 

 a window, or, better still, out of doors, an abundance of fresh air will 

 remove the ill effects in a few minutes. 



The inhalation of the fumes can be retarded somewhat by tying 

 a wet handkerchief tightly over the face. This, however, merely 

 diminishes the amount of air taken into the lungs without affecting 

 the proportion of vapor contained therein. Wlien obliged to enter 

 a room in which there is any considerable amount of the vapor the 

 writer makes use of the following device, w^hich is perfectly effective 

 for a short period. A large paper bag (20 quarts or more) is tied 

 tightly around a short piece of tubing of glass, rubber, or metal 

 inserted into its mouth. TMien inflated the bag contains sufficient 

 air to enable one to respire into it for several minutes without any 

 discomfort. Being light, it is carried easily by the tube in the mouth 

 so that the hands arc left free for any work desired. 



PRECAUTIONS TO BE OBSERVED IN HANDLING AND STORING. 



Tlie dangers involved in fumigating rooms with carbon disulphid 

 have been discussed rather fully, not because they are very gi'eat but 

 in order to lessen the fear that is likely to be great with a material 

 known to involve dangers not fully understood. Danger may be 

 avoided by an intelligent understanding of the precise nature and 

 effects of the chemical. The danger with carbon disulphid is prac- 

 tically of the same nature as that with gasoline, which has come into 

 common use in recent years in many thousands of homes and with 

 hundreds of thousands of automobiles. In reality the danger is less, 



