442 MATERIA MEDIC A 



tion. In blisterln2C the le^s an ounce to an ounce and a half of 

 the ointment for each lee; is sufficient. 



In some cases, as for enlargements, it is desirable to use iodine 

 ointment with the above, but it is better to keep them separate, 

 and mix them when required. 



ACETATE OF CANTHAEIDES. 



Cantharides in powder 1 oz. 



Diluted acetic acid, or vinegar ^ lb. 



Macerate for fourteen days, then strain. 



TINCTURE OF CANTHARIDES. 



Powdered cantharides 2 ozs. 



Boiling water 6 ozs. 



Mix. When nearly cold, add — 



Water of ammonia 6 ozs. 



Macerate for a week, and then strain. 



'-} 



This is a very excellent and convenient form of liquid blister, 

 as it may be used alone or mixed with olive oil, with which it 

 forms a liniment. 



By using a greater or lesser quantity we may obtain almost 

 any effect we please, from a slight stimulus to a strong blister. 



Cantharides may be also used as a liniment with olive oil 

 alone, or as a tincture with spirits of wine, the latter forming 

 Leeming's essence. 



BOLE ARMENIC. A red clay, containing a small pro- 

 portion of oxide of iron, sometimes used by farriers as an astrin- 

 gent in diarrhoea, or in bloody urine; but it certainly does no 

 good in those complaints. It is, however, serviceable as an 

 astringent application to ulcers and wounds, combined with 

 prepared chalk. 



BORAX. — SodcB Bi~botris. Bi-borate of Soda. This, 

 when dissolved in water, is sometimes applied to the mouths of 

 young horses that are inflamed by cutting teeth ; I have found, 

 however, that alum, wliich is much cheaper, is equally effectual. 

 The 3Iel Boracis, or Honey of Borax, is made by mixing one 

 drachm of bi-borate of soda, in powder, with one ounce of 

 clarified honey. 



BOX. The leaves of box have been said to destroy worms ; 

 but, if really anthelmintic, it is certainly too weak to deserve our 

 attention. It may be given with the horse's corn. It is said to 

 have a purgative quality. 



BRAN. An useful article of diet for sick horses, and a pre- 

 parative for purgative medicine or physic, as it is commonly 



