i^O MATERIA MEDICA. 



be fully (Inscribed in their respective 

 places. — (See Iron, Copper, Zinc, Bark 

 Peruvian, Gentian, and Quassia; also Alter- 

 atives, Piiarmacopoeia.) 



The alteratives recommended by writers 

 on farriery fire not composed according to 

 the distinction we have here made; but lax- 

 atives, diuretics, kc. are mixed with little 

 discriniinatiun : thus, as we have before ob- 

 served, antimony, nitre, sulphur, and resin, 

 form their general alterative ; and when it 

 was required to remove diseases, supposed 

 to arise Irom obsruction in the blood-ves- 

 sels, some ponderous medicines were pre- 

 scribed ; among these were Cinnabar, and 

 JEthiop's mineral. This mechanical mode 

 of removing obstructions, however, is now 

 totally disregarded, being incompatible 

 with our present knowledge of physiology. 



ALTHEA. See Marsh-mallows. 



ALUM. A saline bodv, composed of the 

 vitriolic acicly and ahnuine, or pure clay. It 

 is used internally as an astringent in diaV' 

 vh<£(U diahctcs^ &c, in doses from halt' an 

 ounce to an ounce, and is generally joined 

 with bitters and aromatic stimulants^ such as 

 ^tntidin, cassia, aniseed, carrazvaj/ seed, &e» 



