The Roessler & HassMer Ucal Co. 



100 William Street, New York 

 Works: Perth Amboy. N. J. 



FUMIGATING 

 CYANIDE 



For generating H^^drocyanic Acid Gas. 



The only positive eradicator of the San Jos6 Scale, 

 Red and Black Scale and other insect pests. 



•7??'?-?'^l^.'?^^^^:^S.^SSS9SSS^'- '^ ^ ' S^S S S S-^SSS - ^SSS^^^^^^S'^S.^ 



AMERICAN ENTOMOLOGICAL CO. 



BROOKLYN. N. Y. 



Main Office, 55 Stuyvesant Ave. 



Factories : — 936 DeKalb Avenue 

 1785 Bergen Street 



Telephone, 1746 Bushwick 



INSECT PRICE LIST NO. 7 just issued 

 SUPPLY LIST NO. 8 sent gratis on application 



^ Dealers in insects, cocoons, pupae, biological and ento- 

 mological material and supplies. 



IT Manufacturers of the ONLY GENUINE SCHMITT 

 BOXES, insect cabinets, cases and tlie AMERICAN 

 ENTOMOLOGICAL CO. INSECT PINS. 



'Wc make every effort to please 

 Lists on application 



Please mention the Journal of Economic Entomology when tcriting to advertisers. 



