Circular 21 - Insecticides and Subsidiary Materials 68 
SAS3;j'R.A5 OIL 
Oil of sassafras is of some value as 
a repellent to protect the human body from 
sand-fly attack. 
This material is a volatile oil dis- 
tilled from the roots of Sassafras, and its 
chief use is in the manufacture of perfume. 
It is a yellow or reddish-yellow liquid, 
having the characteristic odor and taste of 
sassafras. 
Natural sassafras oil comes in cans 
and drums at ?f.l.05 to 4^1 o 20 per pound. 
For manufacturers and distributors 
see nuiabers 1, 25, 34, 3S, 50, and 74 of 
list at end of tnis circular. 
SILY2R nitr;.te 
Silver nitrate is used as a disinfec- 
tant for skin wounds caused by ticks. It is 
applied locally to the skin after the tick 
has been removed. 
Commercial silver nitrate, AgNOo, is 
practically 100 percent pure. It is a poison- 
ous, colorless, odorless, crystalline powder. 
It is vddely used in medicine, especially as 
an antiseptic, germicide, also in photography, 
silverplating, manufacture of inks, hair 
dyeing, and other industries. 
Caution: This material is very poison*- 
ous and should be plainly labeled and kept 
out of reach of children and others unfamiliar 
with it. 
