fvi 
Remedy . — The only practicable remedy for this pest is to fumigate the 
entire mill and building in which flour and manufactured foods are kept, 
with Carbon Bisulfide. 
This substance is a fluid having a most disgusting odor. It vaporizes 
readily when exposed to the air and in this condition is destructive to all 
forms of active insect life. To use it, the room or building to be fumigated 
must be closed as tightly as possible. All interior doors should be kept open. 
Expose tli6 liquid in shallow pans or saucers and close the building for twenty- 
four to forty-eight hours. Then open all doors and windows and allow the 
gas to disperse in the air. Care should be exercised to avoid breathing the 
gas and on no account should any fire or light be brought into the room or 
building while the peculiar odor can be smelled. This substance is highly 
explosive and inflammable. With care no harm will follow its use. When 
Fig. 2— German Cockroach or Croton Bug. 
a. Roach just hatched; b, a little older; c, half grown, d, nearly full grown; r, adult; 
/, female with egg case; g, egg case enlarged; h, adult with wings spread. 
the gas disperses in the air it leaves no residue behind, so that no trace of it 
can be found in the flour or food. Where only a small lot of goods or sacks 
are infested they may be placed in an air-tight room or bin, and a dish of the 
liquid placed within near the top. Use about four fluid ounces of the liquid 
for each twenty-five cubic feet of space, or for grain or flour in a tight bin use 
one pound of Carbon Bisulfide for each ton. Carbbn Bisulfide can be 
bought of W. S. Powell & Co., Baltimore, Md., and of Edward Clark, Columbus, 
O. Price about 20 cents per pound in 5 pound cans. lit smaller quantities it 
can be had of any druggist. 
Thi; Cockroach —Periplaneta orientalis, and other species. — The cock- 
roach is one of the most common, disgusting and troublesome pests in all 
places where flour or bread is kept. There are two species about equally 
common in the Southern States. The larger one is dark-brown and varies 
from three-fourths to one inch in length. It runs very rapidly, and being so 
flat, it easily finds shelter in some crack when pursued. Figure 2 represents 
the common yellow roach, or “croton bug.” It is much smaller than the 
other species. 
All roaches are enormously fecuud, all are voracious, and eat every kind 
of food used by people. They prefer bread and flour and foods made of flour. 
These pests are nocturnal in their habits, and hence are apt to escape obser- 
