Select Spray Materials 



Which Prove Claims by Test g^ 



It's the only good way to be 



sure you are getting what 



you pay for. 



Jud^e by this 

 Label 



ELECTRO Arsenate of Lead 



in analyses liy X. J. and Conn. Agr. Exper. Stations showed the highest percentages of arsenic 

 oxide ("339;^ computed on drj- basis; 20% on wet) with less than Vj of 1% soluble arsenic. 

 Hence Electro is the strongest ar.senate of lead, yet is harmless. These percentages we 

 guarantee. 



Wf contrii] the only process giving this amount of arsenic pi'operly combined with the lead. 



Electro Dry Powdered Arsenate of lead 



is the only kind in amorphous form. No granular or crystalline form has such 

 adhesive power. Mixes at once with water. So finely divided it stays long in 

 suspension. Age will not weaken it. Its economy is ajjparent: No water to pay 

 freight on, great strength, fineness, and adhesive "qualities. 



Electro Concentrated Lime-Sulphur Solution 



is guaranteed to test 33^ Baume and to contain the maximum percentage of poly- 

 sulphides of calcium. Gives a clear liquid free from sediment. 



Electro Bordo-Pulp 



A n(^n-poisonoiis scientific compound of copper sulphate and high grade lime for 

 use as a fungicide only. This is Bordeaux in concentrated form. 



Electro Bordo-lead Mixture 



A combination of 20% Electro Arsenate of Lead Paste and Electro Bordo-Pulp 

 properly proportioned. 10 lbs. in 50 gals, of water equals in Bordeaux the 4-4-50. 

 formula plus ."> 1\)S. of 20% Electro Arsenate of Lead. 



Electro Kerosene Emulsion 



is readily soluble in water and is to be diluted for the various trees and insects. 



Electro Insecticide Soap 



An oil soap without free alkali. *Iade especially for the purpose — not a by-product. 



Electro Pine Tar Creosote 



Better than coal tar creosote for tree surgery. 



Electro Tree Leim 



for Iianding trees against ant> and caterpillars 



Troutman Orchard Heaters 



give the same heat hourly and burn .">0% longer with equal amount of oil than 

 any other device. Three sizes. 



We guarantee Electro Products to meet our Cladms. They are the Standard in 

 their various lines and conform to all Federal and State Laws. 



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 the most comprehensive booklet on Spraying issued. 



THE VREELAND CHEMICAL CO., S's^^j^'fcf! Tl 



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



