512 MATERIA MEDICA 



Muriate of Copper. — Cupri 3Iurias. A solution of ver- 

 digris in muriatic acid or spirit of salt. Tliis is a good mild 

 caustic, and may be diluted occasionally with water. 



Muriate of Lime. See Calcis Murias, 



Muriate of Mercury, Oxy and Sub. — Hydrargyri Oxy- 

 murias et Siihmirias. Oxynuiriate of mercury is more com- 

 monly known by the name of corrosive sublimate (see Subli- 

 mate), and submuriate of mercury by the name of calomel. 

 See Calomel. 



Muriate of Soda. — Sodcs Murias. Common salt, or the 

 salt employed with food. This is an excellent laxative for 

 cattle, and in small doses promotes digestion. Mow-burnt hay, 

 or bad hay of any kind, is made more palatable to horses and 

 cattle by being moistened with water in which a small quantity 

 of salt has been dissolved, and it is, perhaps, rendered more easy 

 of digestion also. 



MUSTARD. — Sinapis. Though chiefly employed for 

 culinary purposes, mustard deserves a place in our Materia 

 Medica both as an internal and external medicine. When flour 

 of mustard is made into a thin paste with water, and carefully 

 rubbed on the skin for some time, it excites considerable inflam- 

 mation and swelling. This property renders it useful in cases 

 of internal inflammation, particularly when the bowels or lungs 

 are affected. This paste is rendered stronger by the addition of 

 oil of turpentine. See Embrocations. 



Mustard may be given internally, with good effect, in cases 

 which require strong stimulants. 



MUTTON SUET. — Adeps Ovillus. The principal use of 

 this fat is in the formation of ointments. 



MYRRH. — Myrrha. This is a gum resin, produced by a 

 tree or plant that is found principally in Arabia Felix and 

 Abyssinia. It has a pleasant odour, and a bitter pungent taste: 

 is much used in medical practice, as a tonic and stimulant, and 

 may probably be employed with good effect for horses in weak- 

 ness of stomach, diminished appetite, and imperfect digestion ; 

 in such cases it may be given in doses from one to three drachms, 

 with about two drachms of aloes and a little soap ; some ginger 

 also may be occasionally added ; it is often joined with pre- 

 parations of steel or iron. 



There is a simple and a compound tincture of myrrh sold by 

 druo;o;ists. The former is thus made : — 



•»o 



Myrrh 3 ozs. 



Rectified spirit 2 lbs. 



Macerate foui'teen days and strain. 



