DIURETICS. 231 



These diffuse themselves through the air of stables 

 and barns, and neutralize the poisonous gases which 

 are given off from the excrement of animals, whether in 

 health or disease. 



Fixed Disinfectants. — These are such as can be 

 mixed with the excreta and decaying matter, without de- 

 stroying them for manure. 



1. Per chloride of iron. 



2. Permanganate of potash, 



3. Crypsum — Sulphate of lime. This is not a great 

 one, but it is useful, 



4. Charcoal. — This, in fine powder, should be thrown 

 into damp stables and barn-yards, as it will not only re- 

 move unpleasant smells, but will make good manure. 

 Refuse tan bark, and other vegetable substances, made 

 into charcoal, is cheap, and of great utility as a disin- 

 fectant, and adds to the quantity and value of the ma- 

 nure. 



Fixed, — hut noxious Disinfectants. — These are dis- 

 infectants which, when mixed with manure, render it val- 

 ueless as such. 



1. Chloride of Zinc. (Burnet's Disinfectant Fluid.) 



2. Nitrate of Lead. (Ledoyer's Disinfectant.) 



3. Sulphate of Copper, and Zinc Solution, (Larnau- 

 des.) 



Chlorinated Soda Solution, may be mixed with manure, 

 without destroying its qualities as such. 



Chloride of Lime. Solid, or in powder, do not destroy 

 the manuring qualities of vegetal, and other materials 

 usually converted into manures. 



Diuretics. — Medicines, which, when given to ani- 

 mals, increase the flow of urine, and are used in cases of 

 swellings, and dropsies of the body, and legs of horses. 



