156 MATERIA MEDICA. 



SAL AMMONIAC, or Muriate of Aynmo- 

 nia, A neutral salt, w'lich when dissolved 

 in vinegar and water, forms a good embro- 

 cation for strains and bruises. 



SAL INDUS. A saline substance of a 

 reddish colour and very unpleasant smell, 

 lately brought from the East Indies, and 

 strongly recommended as a remedy for that 

 species of worm called hotts : I have not 

 found it however capable of destroying those 

 worms or expelling them ; though, if given 

 in large doses, it will sometimes discharge 

 common worms, particularly if assisted by 

 aloes. The dose is from two to four ounces. 

 It appears to differ from common salt only 

 in being combined with a small proportion 

 of liver of sulphur, or sulphurated potash. 



SAL VOLATILE. This term is promis- 

 cuously applied to compound spirit of am- 

 monia, and prepared ammonia or smelling 

 salts ; but the former is oftt n distinguished 

 l)y the name " spirit of sal volatile?'' 



SALTS. There are three kinds of salt, viz. 

 the acid, the alkaline, and that which is 

 formed by the com.bination of these, i. e. the 

 neutral. (See Acids^ Alkalies, and N4:U' 

 trals.J 



