ANTISEPTICS— ANTI-ZUMINS— APERIENTS. 451 



2. Chloride of Zinc . . . .10 grains. 

 Water 2 ounces. 



3. Sulphate of Soda .... 1 ounce. 

 Water 1 pint. 



4. Charcoal or Brewers' Yeast.] 



[ANTI-ZUmNS. 



A CLASS OF MEDICINES which are now deemed indispensable in 

 meeting certain pathological conditions — fermentation of the blood, 

 as exhibited in glanders, farcy, &c. 



1. Sulphate of Soda .... 3 drachms. 

 Spanish Fly 5 grains. 



To he given once daily. 



2. Carbolic Acid 20 grains or drops. 



Sulphate of Iron, in powder . . 2 drachms. 

 Gentian Root, in powder . . .3 drachms. 



Give one powder daily. 



3. Inhalation of Sulphurous Acid Gas, by placing the animal in a house 



by himself, and generating the gas, by placing 1 ounce of Roll Sul- 

 phur on top of a brazier filled with burning coal, and allowing the 

 horse to breathe the gas from twenty minutes to half an hour, two 

 or three times in the week.] 



APERIENTS. 



{Physic Balls and Drenches.) 



Aperients, or purges, are those medicines which quicken or 

 increase the evacuations from the bowels, varying, however, a good 

 deal in their mode of operation. Some act merely by exciting the 

 muscular coat of the bowels to contract ; others cause an immense 

 watery discharge, which, as it were, washes out the bowels; whilst 

 a third set combine the action of the two. The various purges 

 also act upon different parts of the canal, some stimulating the 

 small intestines, whilst others pass through them without aflfecting 

 them, and only act upon the large bowels; and others, again, act 

 upon the whole canal. There is a third point of difference in 

 purges, depending upon their influencing the liver in addition, 

 which mercurial purgatives certainly do, as well as rhubarb and 

 some others, and which effect is partly due to their absorption into 

 the circulation, so that they may be made to act, by injecting into 

 'the veins, as strongly as by actual swallowing, and their subse- 

 quent passage into the bowels. Purgatives are likewise classed, 

 according to the degree of their effect, into laxatives acting mildly, 

 and drastic purges, or cathartics, acting very severely. 



