Grovernment 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. 



The LEADER Gasoline p^itre Sprayer 



With 3V2 Horse-Power. 4-Cycle En- 

 gine, with Hopper Jacket for Cooling' 

 Purposes. 



It supplies 10 nozzles at a pressure of 

 200 lbs. with safety valve blowing off, 

 and this service can easily be increased 

 without overtaxing the engine. 



A Complete Spraying Rig 



It will meet ewll your 



requirements. 



Relill the tank, saw wood, grind feed, 

 run your repair shop, shell or clean 

 your" grain, run the cream separator or 

 the churn, and is safe, simple and 

 satisfactory. 



We also manufacture a full line of 

 Barrel, Knapsack and Power Potato 

 Sprayers, with Mechanical Agitators 

 and Automatic Strainer Cleaners. 



Field Force Pump Co 



ELMIRA, N. Y. 



JOHN DEERE PLOWCO., Gen.Agts 



K&nsas City, Mo. 



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



