MEDICINES AND EECEIPTS. 373 



very rarely, if ever used internally. The strength Carbolic Acid 

 •should be used in bathings a wound is 10 drops to half a pail ol 

 water ; for a lotion use 20 drops to a pint of water ; for making 

 Carbolic Oil use 25 drops of Carbolic Acid to a half pint of olive 

 or sweet oil, that is about two or three drops of acid to the ounce of 

 -oil. It is a mistake to put too much acid in a wash or lotion, for 

 instead of it having- a cleansing- effect it will burn the wound and 

 stop the healing action. A very good healing salve is made out 

 of 5 drops of Carbolic Acid to an ounce of vaseline. 



CASTOR OIL. 



Castor Oil is got from the seeds of a shrubby tree that grows 

 in Africa, Southern Europe, and South America. 



Its Action and Use. — It is a" mild physic, similar to raw lin- 

 -seed oil. It is not much used for horses or cattle, but is some- 

 times given to dogs, pigs, and young animals. 



Dose. — For horses, 1 pint; cattle, 1 pint; sheep, }^ pint; 



pigs and dogs, 1 ounce or 4 tablespoonfuls. In horses and cattle it 



takes about twenty-four hours to operate on the bowels, while in 



•sheep, pigs and dogs it only takes about twelve hours to operate 



on them. The best way to give Castor Oil to pigs and dogs is to 



give 2 tablespoonfuls every night and morning until you get the 



action required. 



CATECHU. 



Catechu is got by boiling the chips from a tree that grows in 

 Africa and Southern Asia. The form that it is mostly used in 

 practice is known as Tincture of Catechu. 



Its Action and Use. — It acts as an astringent on the bowels 

 for diarrhoea. Thus it is used in cases of diarrhoea, and it checks 

 it in most animals. It is also used for coloring the White Lotion, 

 and a few drops makes it a nice dark color. 



Dose. — Tincture of Catechu — For horses, 2 to 4 drams or 2 

 to 4 teaspoonfuls; cattle, 4 to 6 drams or 4 to 6 teaspoonfuls; sheep, 

 2 drams or 2 teaspoonfuls; pigs and dogs, 1 dram or 1 teaspoonful. 

 These doses may be given in gruel or a pint of luke warm water 

 three or four times a day until the diarrhoea is stopped. 



CALOMEL. 



Calomel is got from the mineral kingdom. It is prepared 

 for medicine in the form of a heavy white powder. 



Its Action and Use. — Its chief action is as a physic, and also 

 .clears the bile from the liver. It is given in cases of jaundice and 



