Works at: 



Perth Amboy 

 New Jersey 



Cyanide of Potassium 



Guaranteed ? 8 / 99 per cent. 



FOR GENERATING 



Hydrocyanic Acid Gas 



THE MOST EFFECTIVE 



FUMIGATING MATERIAL 



To Destroy Scale Insects on Fruit Trees, Nur- 

 sery Stock, and Plants of all kinds under 

 Glass and in Greenhouses; also Insects in 

 Mills, Elevators, Warehouses, Cars, Ships, etc. 



... Manufactured by the ... 



Roessler 6 H&>ssl&.cher Chemical Co. 



100 William Street, New York 



