CHAPTER XVI 
APPLICATION IN MILLS, ELEVATORS, AND 
OTHER ENCLOSURES 
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ANY gases and other materials have been used 
in mills and other enclosures for the de- 
struction of insect pests. Gas generated from 
sulphur is not only dangerous to inhale, but 
is liable to injure manufactured products. The writer 
reported several years ago the serious results upon 
manufactured products in a mill where sulphur fumes 
were used. Smoke or fumes generated from tobacco 
are not desirable on account of the disagreeable odor 
and the after-effects upon grain and the manufactured 
products. Both of these materials being generated 
with fire, the danger attending application in mills 
and other places is increased, and their use is seriously 
objected to by insurance companies. 
On the other hand, carbon bisulphide has many 
advantages over sulphur and tobacco; it can be used 
without danger of injuring either the grain or manu- 
factured products, and is generated without the use of 
fire. Yet many insurance companies will not permit 
their patrons to use it, except at their own risk, on 
account of its explosive nature when the fumes are 
mechanically mixed with air. It is, perhaps, the safest 
and most reliable remedy suggested for use in build- 
ings and other enclosures where large quantities of 
grain and other materials are stored, due largely to 
the fact that its fumes are heavier than air. 
Sometimes it is desirable to use carbon bisulphide 
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