220 



STATE BOARD OF AGRICULTURE. 



PARIS GREEN PASTE. 



International Color & Chemical Co., Inc., 

 Detroit, Mich , 



% 

 42.96 



% 

 24.99* 



% 

 1.10 



% 

 1.74t 



% 

 23.4 



Water, %. 

 22.16 



•Computed from 18.93% metallic arsenic. 

 JComputed from 1 .32% metallic arsenic. 



PLASTER— PARIS GREEN MIXTURES. 



Manufacturer. 



Arsenious Oxide. 



Total. 



Guaranteed. 



Curtis Bros., Reed City, Mich 



H. J. Crocker, Reed City, Mich 



Earl Slawson, Greenville, Mich 



Michigan Gypsum Co., Grand Rapids, Mich 



% 



3.21 

 3.21 

 3.33 

 0.865 



No guarantee. 



No guarantee. 



No guarantee. 



0.485 



BORDEAUX MIXTURE. 



Three samples of dry Bordeaux mixture and two samples of the paste 

 form were obtained. These were found to vary considerably both as to 

 the amount of copper contained and as to the directions for use. When 

 these mixtures are used according to directions it is found that the 

 amount of copper, calculated as copper sulfate, would vary from 1.11b 



