BUCKBEAN — CALOMEL. 55 



It has been highly spoken of as a remedy 

 for quUtors and other ulcers of a similar 

 kind ; it is certainly a strong caustic, and 

 may be employed in cases where such ap- 

 pHcations are required. 



There is something peculiar, however, ia 

 this caustic, which is, that by qoming into 

 contact with a moist part, it is immediately 

 decomposed, so that when applied to ulcers, 

 its action is of very short duration. 



CALAMINE, or Lapis Calaminaris, 

 A metallic calx, which, when powdered, 

 resembles a white earth inclining to a red 

 colour. It is employed for the purpose of 

 drying or healing ulcers which discharge a 

 thin acrimonious matter; it is also mixed 

 with hog's lard, oil, and wax, so as to form 

 an ointment, which is used for the same 

 purposes. This ointment, or cerate, is the 

 celebrated Turner^s Cerate. 



CALOMEL. Is the most useful of the 

 mercurial preparations, and composed of 

 oxide of quicksilver, and muriatic acid. 

 When prepared, it is a fine white powder, 

 rather inclining to yellow, and very pon- 

 derous. It is the most efficacious aiithel- 

 rnintic we are acquainted with (See yin- 



D 3 



