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WILSON'S 



O. K. PLANT SPRAY 



KILLS PLANT INSECTS, SCALE and MILDEW 



Used by Leading Gardeners 



E C WORDCN. Pk C . D Sc- r C a, TELEPHONE CONNECTONS 



EDWARD C.WORDEN 



ANALYTICAL AND CONSULTrNG CHEMIST 

 THE CHEMICAL AND MICROSCOPICAL EXAMINATION CF COMMERCIAL PRODUCTS 



orriCE NO 2 RECTOR ST. NEW YORK CITY 

 PLEASE ADDRESS REPLY TO LABORATORY, MILBURN. NEW JERSEY 



Andrew Wilson, Ine., 

 Springfiold, N.-J. 



January 4 th 1922. 



D«ar Slr:- 



This is to oertify that I he.vs ohemioally analysed and am familiar 

 with the ooraposition and properties of Wilson's O.K. Plant Spray, and have 

 made extensive praotical trials of the same covering a period of the past five 

 years for such insects as Red Spider, Mealy Bug, Scale, Aphis and Grape Mildew, 

 and have found the same uniformly efficient €ind entirely innocuous to the most 

 tender plants. It had proven in my hands the most econoraioal and efficient 

 Plant Spray which I have ever used. 



Very truly your, 



Edward C. Morion, Fh.C, U.A,, D.So., F.C.S. i-'jnbor of the Chemioal Societies 

 of United States, England, Franoe, Italy and Germany. Fellow of the Irttitute 

 of Prance. 



Barrels $90, ] Barrels $50, 10 gallons $20, 5 gallons $10 



ANDREW WILSON Springfield. New Jersey 



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