612 THE VETERINARY SCIENCE 



caustics, such as chloride of zinc, nitrate of silver and caustic 

 potash. It is used externally in the form of liniments. See 

 also the receipt for acid liniment, Chapter V. 



22. Sulphate of Copper. 



Source. — Sulphate of Copper, blue vitriol or blue stone, 

 is in the form of a blue crystal. 



Action and Use. — Its chief action when given internally 

 is in checking discharges, such as nasal gleet or chronic 

 catarrh, and whites or leucorrhoea. For this purpose, refer to 

 the receipt to be used internally in the above named diseases. 

 Externally, it is used for wounds that are not healing well 

 and have proud flesh in them, by grinding it fine and dusting 

 it on the wound every two or three days according to how 

 much it burns it. 



23. Sulphate of Iron. 



Source. — Sulphate of Iron, or commonly called green 

 vitriol, is in the form of a crystal, similar to sulphate of 

 copper, only of a lighter shade in color. 



Action and Use. — It is one of the best mineral tonics and 

 is used combined with gentian, in equal parts, for almost 

 every case where the system is run down and requires 

 building up. For horses and cattle give a teaspoonful three 

 times a day ; for sheep and pigs give one-half a teaspoonful. 

 It is also used in the same form for killing long round worms 

 and pinworms in horses. For full directions as to how to use 

 it in this case refer to the receipt of worm powders given in 

 this Part. 



24. Sulphate of Zinc. 



Source. — Sulphate of Zinc is used in the form of a white 

 crystal powder, and resembles Epsom salts in appearance. 



Action and Use. — When used internally it is in the form 

 of an emetic to cause vomiting. "As to how it is used refer to 

 "Poisoning," Part IV. When used externally it has a heal- 

 ing action. See the receipt of white lotion. It is also used 

 as a drying wash for clap or gonorrhoea in horses and whites 

 in mares. Refer also to those diseases. 



25. Sugar of Lead. 



Source. — Sugar of Lead is also cahed Acetate of Lead. 



