A COMMERCIAL POINT OF VIEW. 59 



Pour over quicklime some warm water, and when the 

 lime is slaked and settled, draw the clear water off, which 

 can be kept for a considerable time. The lime will be 

 useful for whitewash. 



Oxide and Sulphate of Iron. 



Both these can be purchased cheap from any drysalter, 

 but they are so easily prepared that they may as well be 

 manufactured on the establishment. 



The oxide of iron (or rust) is most useful for making 

 and improving tlie blood ; and the sulphate of iron, a 

 weak solution containing a large quantity of oxygen, will 

 keep fowls lively and assist digestion. Prepare as fol- 

 lows : — 



Take a quantity of old nails or small pieces of iron, put 

 them in an earthen-ware vessel, then pour over them sul- 

 phuric acid diluted with water. The liquid will take up 

 a certain quantity of iron, and form sulphate of iron or 

 green vitriol. The rust (the oxide of iron) is obtained by 

 mixing some diluted soda (carbonate of commerce) with 

 the sulphate of iron. The oxide will then be precipitated, 

 and the liquid forms sulphate of soda, which is a good 

 liquid manure, which mix with the food or drink, as 

 given under the heading of Food, pages 31-33. 



General Plan of Buildings. 



A breeding establishment on the above scale will re- 

 quire about four acres of land for the buildings. Six 

 buildings, each three hundred feet long, will contain 



