q 43 3 



3. Magncfian muriate. 



4; Magnefia, or common Magnefia. 



5. Gypfum. 



6. Calcarious nitre. 



7. Calcarious muriate. 



8. Chalk, 

 g. Alum. 



III. METALLIC SALTS. 



1. Aerated iron. 



2. Vitriolated iron. 



3. Vitriolated copper. 



4. Vitriolated zinc. 



5. Arfenic. 



IV. SULPHUREOUS. 



1. Hepatic air. 



2. Liver of fulphur. 



Water is found mixed with fome few fub- 

 flances not here enumerated, as 



a. Silicious earth in very fine particles fome- • 

 times gives to water amilkinefs, and 



b. Argillaceous earth in fuch quantity as to 

 give the water the title of faponaceous, from its 

 feel and refemblance. 



Some other fubftances, as bitumen and nap- 

 tha, may give Water fometimes a little character, 

 as they flow out of the fame fprings upon the 

 furface of fome waters. 



In this view of the fubftances contained in 

 mineral waters, we fee they are almoft all faline, 

 G 2 and 



