EXPERIMENT STATION REPORTS. 



273 



BORDEAUX MIXTURE. 



No. 



Manufacturer. 



Copper (Cu). 



Found. 

 Per Cent. 



Guaran- 

 teed. - 

 Per Cent. 



499 

 530 

 587 

 502 

 571 

 542 

 578 

 487 

 533 

 511 



.\nsbacher Insecticide Co., New York, N. Y 



Corona Chemical Co., Milwaukee, Wis 



Corona Chemical Co., Milwaukee, Wis L 



Detroit White Lead Works, Detroit, Mich 



Detroit White Lead Works, Detroit, Mich 



Hammond's Paint & Slug Shot Works, Beacon N. Y 



Imperial Chemical Co., Grand Rapids, Mich 



Sherwin-Williams Co., Cleveland, Ohio, " Fungi-Bordo" 



Sherwin Williams Co., Cleveland, Ohio, " Fungi-Bordo" 



Dow Chemical Co., Midland, Mich., Magnesium Bordeaux Mixture 



12.0 

 12.0 

 11.8 

 11.9 

 12.0 

 12.7 

 11.4 

 11.7 

 12.3 

 25.7 



12.0 

 11.0 

 11.0 

 11.0 

 II. 

 12.5 

 11.0 

 11.0 

 11.0 

 25.0 



BORDEAUX ARSENATE MIXTURES. 



Four samples representing four manufacturers were analyzed. One 

 sample (572) was below guarantee in total arsenic and copper. For a 

 more complete discussion of this class of material the reader is referred 

 to Special Bulletin No. 9G published in May, 1919. 



BORDEAUX ARSENATE MIXTURES 



DUSTING MATERIALS. 



Seven samples, all manufactured by the Niagara Sprayer Co., Mid- 

 dleport, N. Y., were analyzed. These were, for the most part, dry mix- 

 tures of lead arsenate and sulphur in varying proportions. Some con- 

 tained dry Bordeaux mixture and others nicotine. 

 35 



