TWELVE] OUR RIVALS — THE INSECTS 



half as much. It will not burn the tenderest foli- 

 age when made according to the following prescrip- 

 tion. Boil together for fifteen minutes 



Water 2 gals. 



Sal Soda 8 lbs. 



White Arsenic 2 lbs. 



When the arsenic is entirely dissolved the mixture 

 is ready for use. Place one pint, together with two 

 pounds of slaked lime, in a barrel of water. The 

 value is equal to one-quarter of a pound of Paris 

 green, and costs much less. 



White hellebore and pyrethrum are generally ap- 

 plied in water, one ounce to three gallons of water, 

 or they are used dry, mixed with one-fourth part of 

 flour, to make them adhere. These poisons are 

 used chiefly on ripening fruit, such as currants, be- 

 cause they lose their poisonous properties very soon 

 after being exposed to the air. 



Kerosene emulsion should always be kept on 

 hand. It may be made by dissolving one-half 

 pound hard soap in one gallon of boiling water; 

 add two gallons of kerosene, and churn the mixture 

 with a pump until it is so thoroughly mixed as to 

 constitute a soap — that is, for about five or ten min- 



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