382 HOESE AND CATTLE MEDICINES. 



Tincture or Opium. — Laudanum. — Every fifteen 

 drops of the tincture contain one grain of opium. Lau- 

 danum is the most costly of all the preparations of opium ; 

 and not only that, the large quantity of alcohol, or spirits 

 of wine it contains, is a decided objection to its use in 

 many diseases. Crude opium rubbed down with a little 

 water will be far better when it is to be used at once, or 

 not kept for any time. Laudanum is used in lotions and 

 liniments for the relief of pain, and it enters into eye washes, 

 for the same purpose. 



Wine of opium contains spices. Not much used. 



Codia, narcotine, narceine, paramorphia, papaverine, 

 meconine and meconic acid, are the various constituents 

 of opium, but they are not used in medicine, either in 

 domestic or veterinary. 



Battley's sedative drops, so well and familiarly known 

 throughout the world, wherever the English language is 

 spoken, though a secret, are known to contain opium, 

 water aad a little spirit, and are one-third stronger than 

 laudanum. 



Pariera Brava. — A root which is to be sliced, and 

 have one pint of water added to one ounce of the root. 

 Boil, and strain when cold. This is a good tonic for 

 horses. Mix with the feed, half a pint to the dose. 



Peach Leaves. — One ounce infused in the same way 

 as tea, with one pint of water, is an excellent application 

 for the skin of animals having the itch and skin diseases. 



Peppermint. — Mentha Piperita. The essence of this 



garden plant is sometimes given to horses having colic, 



and given in doses of twenty drops. Dogs can have thre*" 

 drops for a dose, in the same disease. 



