COMMON MEDICINES AND THEIR ACTIONS 73 



wounds and sores. Care should be taken not to 

 have a wash contain too much of the acid, as it 

 will burn the wound and stop the healing action. 

 It is a corroding poison taken internally. It should 

 be just strong enough to kill bacteria; say, i part 

 to i,ooo parts of water. A very good healing salve 

 is made when 5 drops of pure carbolic acid is used 

 to 4 tablespoonfuls of vaseline. 



CORROSIVE SUBLIMATE 



This is used externally as an antiseptic and dis- 

 infectant. Dissolve I part to 100 parts of water. 

 It is a preparation of mercury, is poisonous, but 

 excellent for bathing wounds and open sores. 



CASTOR OIL 



This oil is pressed from castor beans. It is a 

 mild physic similar to raw linseed oil. It is not 

 used much for live stock. 



Dose ! For horses and cattle, i pint ; for sheep, 

 one-quarter pint, and for pigs, 4 tablespoonfuls. 



CALOMEL 



This is a heavy white powder and a mineral. Its 

 principal action is as a physic, and it has a cleansing 

 effect on the liver. Hence it is used for all kinds 

 oi liver troubles. When dusted in old sores, it is 

 splendid for healing and drying up. 



Dose: For horses, one-half to i teaspoonful; 

 cattle, I to 2 teaspoonfuls ; sheep and pigs, one- 

 eighth teaspoonful. 



CROTON OIL 



This oil is made from seeds, and is one of the 

 most powerful physics known. It should never be 



