28 Farmers’ Bulletin 1275. 
50-pound cans, at 124 cents per pound, including can. 
10-pound cans, at 17 cents per pound, including can. 
5-pound cans, at 20 cents per pound, including can. 
1-pound can, at 25 cents per pound, including can. 
To the above price must be added transportation costs. Farmers 
throughout the country can purchase carbon disulphid of local 
drug stores, but prices under such conditions often are exorbitant. 
County agents, boards of trade, or other public-spirited local or- 
ganizations can purchase carbon disulphid and furnish it at cost 
to farmers in yicinity. This has been done in certain southern towns 
with the result that farmers have secured carbon disulphid of ex- 
cellent quality “ at lowest price. If local firms can not supply carbon 
disulphid, the names of firms in a position to fill orders may be ob- 
tained upon application tothe Bureau of i Eentomeleny U.S. Depart- 
ment of Agriculture. 
Remember, if you do not get results with carbon disulphid 
the trouble is (1) with the way you apply it; (2) your con- 
tainer is not tight; (3) your dealer has sold you poor liquid; or 
(4) you have fumigated when»it is so cold that no one can 
get good results. 
Remember that large:business firms and many farmers use 
carbon disulphid successfully and that its use on farms is on 
the steady increase. Nothing speaks better for any control 
measure than its steady use by successful business men, no 
matter. whether they are farmers or seed brokers: : - 
CARBON TETRACHLORID. 
Carbon tetrachlorid (CCl,) is a fumigant that has been used as a 
substitute for carbon disulphid in fumigation work, since it has the 
advantage over carbon disulphid of being noninflammable. When 
pure, carbon tetrachlorid is a thin, transparent, colorless liquid, 
with a pungent, aromatic odor. Except for being noninflammable, it 
is similar to carbon disulphid in all essential features, from the 
standpoint of application. It costs from 11 to 60 cents a pound and 
is not more than one-half as effective as carbon disulphid. It is not 
likely to take the place of carbon disulphid because of its inferior 
killing qualities and its somewhat great cost per pound. Its great 
advantage is its noninflammability. 
Tf carbon tetrachlorid can not be had from local firms the names 
of firms supplying this chemical may be obtained upon application 
to the Bureau of Entomology, U. S. Department of Agriculture. 
18 Unserupulous dealers sometimes sell inferior lots of carbon disulphid. Dealers sell- 
ing liquid containing less than 98 to 99 per cent actual CS2 violate the Federal Insecti- 
cide Act and are liable to prosecution in Federal courts. 
