78 INSECTICIDES FOR SUCKING INSECTS 
Carbolic acid emulsion is prepared in the same manner as kerosene 
emulsion. Dissolve 1 pound of hard soap in 3 gallon of boiling 
water. Then add 1 pint of crude carbolic acid, and at once churn the 
mixture by pumping it back on itself with a bucket pump until a 
smooth emulsion is formed. 
This is the stock material. To prepare for use dilute at the rate of 
1 part of the stock emulsion to 50 parts of water. 
