372 THE VETERINARY SCIENCE. 



Its Action and Use.^It is principally used as a mild physic 

 for dogfs. 



Dose. — For a dog" g"ive 1 to 2 ounces ; cats, ^2 ounce. A. 

 very good plan is to give a tablespoonful of the syrup every night 

 and morning until you get the desired results. 



CAMPHOR. 



Camphor is got from a tall, evergreen tree known as the- 

 Laurel Camphor, which grows in Japan, China, and different 

 parts of Europe. The branches are cut and boiled in water and 

 the camphor rises to the top in the form of a gum. 



Its Action and Use. — It is mostly used in mixtures for 

 coughs, sore throat and heaves. How to use it is best seen in 

 the receipt for chronic cough, and heaves or broken wind. 



CANTHARIDES OR SPANISH FLY. 



Cantharides are got from flies which receive the name Spanish 

 Fly on account of so many of them coming from Spain. The flies- 

 are of a g-reen color, and an inch in length, and are captured in 

 nets, then killed by pouring boiling water or vinegar on them, 

 after this they are dried in the sun or by artificial heat, and are 

 then ground and made ready for use in practice. 



Its Action and Use. — Its chief action is as a sweat blister 

 and is one of the principal ingredients in sweat blisters which are 

 used for sweating thickenings or lumps on any part of the body^ 

 that are not on the bone, such as curbs, tumors, thickening's left 

 after a wound has been healed up, etc. As to how to use- 

 Powdered Cantharides see the receipt for sweat blister at the 

 back of this book. Cantharides can also be got in the form of 

 a tincture, but is not much used. The proportion to use 

 Powdered Cantharides for a sweat blister is, 1 to 2 drams of 

 the Canthardies to an ounce of vaseline or lard according to 

 how heavy the skin of the horse is. For cows use it a little 

 stronger than for the horse. 



CARBOLIC ACID. 



Carbolic Acid is got from coal tar and petroleum. The pure 

 Carbolic Acid is got in the form of a crystal, but the wav it is 

 generally bought is in the form of a liquid. 



Its Action and Use. — it has a very cleansing effect on a 

 wound, and is greatly used for that purpose and is also used for 

 fumigating stables by sprinkling a little around on the floor. It is 



