260 FUMIGATION METHODS 



used in mills, warehouses, and other enclosures with 

 perfect safety. A reasonable amount of the vapor can 

 be inhaled, while the liquid is being distributed in a 

 building without injury to the operator. From per- 

 sonal experience in making many practical applications 

 of carbon bisulphid in buildings, the writer has never 

 experienced any ill feeling or bad after-effects from 

 the gas. The sense of smell is the first affected. If 

 one is confined in a room where the gas is being gen- 

 erated, for a short time the olfactory organs are 

 benumbed or deadened. As the oxygen in the lungs 

 becomes exhausted, the heart-throbs become more 

 rapid. The mind becomes sluggish, while hearing and 

 sight are weakened. This is usually followed by dizzi- 

 ness. The sensation is not disagreeable, and a person 

 has no immediate desire to get out of the gas. A 

 person in this condition should leave the building being 

 fumigated at once and freely inhale fresh air. 



Mr. W. E. Hinds, who has had some experience 

 with the practical application of this gas, in a recent 

 Farmers' Bulletin (No. 145) by the United States De- 

 partment of Agriculture, says : ' l Owing to the effect 

 of the gas upon the heart action, it may be well to 

 caution persons having any trouble or weakness about 

 the heart against taking any extended part in the 

 application of the bisulphid. It should be clearly 

 understood by those who use it that the action of the 

 gas is somewhat poisoning as well as suffocating. 

 Should the operator persist in remaining in the room 

 after the dizziness comes on, he will be in danger of 

 falling, and, if not discovered, he will soon suffocate. 

 Even if he should get out safely, the ill effects will be 



