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Government Entomologists, and most all others using Meteorological Instru- 

 ments and Apparatus, know well of the establishment — 



BELFORT OBSERVATORY 



Write for Leaflets, to 

 1230 E. BALTO. ST. 



JULIEN P. FRIEZ. Baltimore, Md., U. S. A. 



HEMINGWAY'S 



is the lead arsenate of the ex))ert fruit grower. It 

 is widely used in all of the famous fruit growing 

 districts. Made in a factory which has specialized 

 in arsenical manufactures for over 30 years, it has 

 the advantage of this long experience in its prep- 

 aration for the use of the discriminating fruit grower. 



HEMINGWAY'S 

 ARSENATE OF LEAD 



The Perfect Product. 



Possesses miscibility with maximum sticking power. 

 Is 20% stronger than the federal law requires. 

 Send for booklet giving full directions for the use of 

 Hemingway's Lead Arsenate against all biting insects. 



HEMINGWAY'S LONDON PURPLE CO.. LTD. 



64-66 Water Street. New York 



Please mention the Journal of Economic Entomology when writing to advertitert. 



