57 
mill was finally choked to a standstill I knew what to do. 1 
first put six men at work taking spouts and elevator legs apart 
and cleaning them thoroughly, and when that was done I had 
them go tor the machines. It took us just six days to get 
cleaned up. Under the Professor’s advice I had provided ten 
gallons of bisulphide of carbon and about 200 tin pie-plates, and 
when Saturday afternoon came we closed and packed all the 
doors and windows, distributed the plates throughout the mill, 
filled them with bisulphide, and “let her simmer” until Monday 
morning, when on opening up the mill we found dead moths 
everywhere. The destruction was so thorough that for three 
months or more things ran along without trouble. Then the 
spouts and conveyors began to fill up with webs again, until at 
the end of six months we were compelled to clean up and repeat 
the dose. In fact we did not get wholly rid of the moth until 
about two years ago, when, on changing our mill over to the 
sifter system, we took out all elevator belts, took the legs 
apart and scraped them, took down all the wooden spouts, 
burned them up, and put in their places adjustable galvanized 
iron spouts. That was the end of our trouble from moths, and I 
believe that so long as we keep our mill clean and the main 
floors well whitewashed they will let us severely alone. — The 
Roller Mill, November, 1900. 
Bulletin No. 9, of the Experiment Station of Florida, states. 
“Bins and corn cribs can be easily rid of ants, weevil, rats, mice, 
beetles, etc., if the room be made air tight, and occasionally filled 
from the top with the vapor of Bisulfide of Carbon. This is the 
only way in which our fanners ever will kqep corn, peas, etc., from 
insect attacks. In this way a terrible waste will be checked, and 
the thousands of dollars now spent for ‘‘shipped corn" be saved the 
state. 
BISULFIDE OF CARBON. 
From the Appendix to the Nineteenth Report of the State Ento- 
mologist of Illinois. By W. G. Johnson, A. M., 
Assistant Entomologist. 
The simplest, most effective, and least expensive remedy for 
all mill pests is bisulfide of carbon, a very inflammable, volatile, 
foul-smelling liquid, as clear as water. Its vapor is heavier than 
air and will penetrate every crack and crevice in a mill or 
warehouse when used in sufficient quantities. It can be thrown 
directly upon grain without injuring its edible qualities, and will 
not affect its vitality in the least. In mills it can be used about 
the machinery, spouts and elevators with perfect assurance that 
the manufactured products will not be damaged. It is a power- 
ful insecticide, the atmosphere produced by its vapors being 
sure death to insects, as well as to rats and mice. I know of no 
instance, however, where the slightest deleterious effect has 
been realized by persons applying it in mills, although they 
unavoidably Inhale some of the fumes. 
