INJURIOUS INSECTS OF 1909 AND IQIO. 83 
serve to keep the former tight. Into this receptacle in the spring 
goes all of our clothing not to be used during the summer, and 
which is attractive to moths. At the same time in a saucer-like 
dish placed on top of the clothing is poured four tablespoonfuls of 
bisulphide of carbon, and the chest closed. It should not be opened 
for any purpose for three or four days. We repeat this performance 
about ten days later, since the vapor fatal to the larva does not, we 
believe, kill the egg, and perhaps once or twice more at intervals 
during the summer. These latter fumigations are probably not 
necessary, but would kill any insect life, should a moth, by accident, 
have crawled in. This vapor, heavier than air, sinks through the 
clothes stored in the chest. It is explosive when mixed with the 
atmosphere, and no light of any kind should be brought near it. 
Bisulphide of carbon may be purchased in pint cans. It in no way 
injures the clothes. A tight closet made for the purpose or any 
perfectly tight chest might take the place of the iron box above 
described. 
