Select Spray Materials 



Which Prove Claims by Test 



It's the only |»ood way to be 



sure you are getting what 



you pay for. 



ELECTRO Arsenate of lead 



in analyses by N. J. and Conn. Agr. Exper. Stations showed the highest percentages of arsenic 

 oxide (33% computed on dry basis; 20% on wet) with less than Vj of 1% soluble arsenic. 

 Hence Electro is the strongest arsenate of lead, yet is harmless, These percentages we 

 guarantee. 



We control the only process giving this amount of arsenic properly 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 apparent: No water to pay 

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



Electro Concentrated lime-Sulphur Solution 



is guaranteed t" test 'Xi' "' ' • . 



sulphides of calcium. G 



Electro Bordo-Pulp 



is guaranteed t" test ;« ' Haume and to contain the maximum percentage of poly- 

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



A non-poisonous 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 5 lbs. of 20(;;, Electro Arsenate of Lead. 



Electro Kerosene Emulsion 



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



Electro Insecticide Soap 



An oil snap without free alkali. Made especially for the purpose — not a by-product. 



Electro Pine Tar Creosote 



Better than coal tar creosote for tree surgery. 



Electro Tree leim 



for bandiiij:: trees against ants and caterpillars. 



Troutman Orchard Heaters 



give the sam6 heat hourly and burn 50% longer with equal amount of oil than 

 any other device. Three sizes. 



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

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



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THE VREELAND CHEMICAL CO., 46 CHorcIl St., New York. 



Please mention the Journal of Economic Entomology when uridng to advertiaen. 



