EXPERIMENT STATION BULLETINS. 391 



The following materials were identified: Sodium sulfate (Glauber's 

 salt), rock phosphate, sulfur, charcoal and trace of copperas. The ingre- 

 dients are present in about the following proportions : 



Glauber's Salt \ 45.70% 



Rock phosphate 24 .02% 



Sulfur ; 7.15%, 



Charcoal and sand 23 . 13% 



Copperas trace 



"dr. hess' stock tonic." 



Manufactured by Drs. Hess & Clark, Ashland, Ohio. Sample submitted 

 by Inspector Teske. The following ingredients were identified: Salt 

 (42.43%), epsom salt, glauber's salt, potassium nitrate (salt peter) cop- 

 peras, quassia, fenurgreek, nux vomica, wheat bran, charcoal. 



"guardian stock CONDITIONER." 



Manufactured by the Guardian Food Company, New York City and 

 Indianapolis, Ind. Sample submitted by C. M. Kidman, Port Huron, Mich. 



Ingredients identified: Peanut shells, charcoal, fenurgreek, quassia, salt, 

 copperas, Glauber's salt, sulfur. 



The ingredients are present in approximately the following proportions: 



Sodium chloride (salt) 06 .47% 



Sulfur 0.71% 



Sodium Sulfate (Glauber's Salt) . . . . \ in 17C/ 



Ferrous Sulfate (Copperas) / iu . i/ /o 



Peanut Shells 1 no rrcy 



Charcoal 2Z.bo/o 



