WITH 4200 HENS 159 



are : Common Epsom Salts ; Common Baking Soda, and 

 Douglas Mixture. 



Douglas Mixture is said to be as old as the hills ; here is 

 the formula: 



8 Ozs. Copperas 



Y-2 Oz. Sulphuric Acid. 



Dissolve the Copperas in one gallon of water, using a 

 stone or glass jar. When the Copperas is entirely dis- 

 solved, which, with frequent stirring, it should be in about 

 24 hours, add the Sulphuric Acid. Allow it to "set" until 

 the mixture is perfectly clear. It is then ready to use. 

 It is poisonous. Its use will be stated. It costs seven 

 cents per gallon. 



