126 MATERIA MEDICA. 



a blister, by the addition of cantharides, or 

 Spanish flies. In this state it is a good re- 

 medy for bog spavin, or other swellings of 

 the hock joint. 



Mercurial Ointment is said to be an effec-' 

 tual remedy for the scab in sheep, and is 

 often an ingredient in ointments for the 

 mange. In making mercurial ointincnt the 

 operation is considerably expedited by using 

 a small quantity of oM suet, or tallow that 

 is rancid. 



Persons unacquainted with pharmacy 

 commonly prefer mercurial ointment that 

 has been recently prepared. It is said, how- 

 ever, that old and rather rancid ointment is 

 more powerful, particularly if rubbed for a 

 short time in a n^ or tar before used. 



Mercury. Quicksilver is commonly 

 distinguished by this liame ; the various pre- 

 parations of which will be described in their 

 proper places. (See Calomel, Sublimate, 

 Cinnabar, ^thiops Mineral-, Turpeth Mi- 

 neral, Bed and White Precipitate, Calx of 

 Quicksiher, Mercurial Ointment, Rud Quick- 

 silver. J 



MEZERliON. A root much used ii^ 

 medicine,. '.'\ vcn<^rcal and rheumatic com* 



