. 20 Bulletin N0. 147; A _
l it with a little warm water. It may then be allowed to dry  
Q before planting. Y _ * _ ,
_ As sold by druggists and manufacturers ithis is a brown-
ish Huid which quickly disappears in the air when exposed in
an open vessel. Itsdisagreeable odor is due to impurities,
‘ since the odor of pure bisulfid of carbon is not unpleasant. ~ i
The fumes are not only poisonous, but are inflammable, so ]
that some care must be exercised in handling the fluid. It   ‘
has proved of special service as a remedy for grain weevil, 1
. bean weevil and other insects attacking stored seeds, and 1
has been quite extensively employed for the_ destruction of l
A the Phylloxera of grapevines in Europe, for the Woolly  
Aphis, for ants, and even for the clothes moth. llts great  
l value for such purposes comes not only from its effective-  
l ness in destroying all insects, but also because it is not Q
corrosive and is otherwise not injurious to seeds, fabrics  
and other objects fumigated. The offensive odor is soon gone _
if objects that have been exposed to the fumes are thorough-  
ly aired. It cannot be used for fumigating plants infested  
with insects because of its destructive effect on the plants  
themselves. l A _ .
About one fluid ounce shouldbe used on each bushel of i `
seed, and may be poured over the seeds or simply placed in  
· a saucer or other open vessel set on their surface. It is  
' absolutely necessary that the seeds be enclosed in a tight ll
box or bin to get satisfactory results, and the time of expo-
sure should not be less than two hours.
. The bisulfid of carbon may be bought in quantity of
Edward R. Taylor, of Penn Yan, New York.
' I
A This gas is made from cyanide of potassium (98 per cent.),  
commercial sulphuric acid of good grade, and water. The A
gas produced is very poisonous as are also the cyanide of