INSECTICIDES. 287 



Co., Boston, Mass., is practically the same as arsenite of 

 lead, and is much more adhesive than the other arsenites, 

 this being due, we understand, to its containing glucose. 



Arsenite of Lime. 

 ''This has the threefold advantage of being (1) cheap, 



(2) the amount of arsenic is under perfect control, and 



(3) it does not burn the foliage. It is made by boiling 

 together for 45 minutes : 



White arsenic 1 pound 



Fresh stone lime 2 pounds 



^Vater 1 gallon 



'' This may be kept in a tight vessel (marked - Poison I '} 

 and used as desired. Thoroughly stir the material before 

 usiug. For most insects, one quart of the above per 

 barrel will be sufficient." It is insoluble in water and will 

 not injure foliage at this strength. The cheapest arsenite 

 and as effective as any. 



Paragrene. 



'' Has equal insecticidal value with Paris green, is about 

 as likely to burn the foliage and remains longer in suspen- 

 sion. We consider it an excellent substitute. " Manufac- 

 tured by Fred L. Lavenburg, Xew York, 13 cents per 

 pound in 1-4-pound pails. Add 1 pound of lime per 

 barrel. 



Resin-lime Mixture. 



Pulverized resin 5 pounds 



Concentrated lye 1 pound 



Fish-oil, or any cheap animal-oil except tallow. 1 pint 



'' ^^^^' ' 5 gallons 



Place oil, resin, and a gallon of water in an iron kettle 

 and heat until resin is softened; add lye solution made as 



