154 Notices of the Sulphur, Sweet, 



The infusion of galls appears to have no effect up- 

 on the water. 



Charcoal, gently agitated in the water, takes from 

 it entirely its peculiar or acidulous taste. A similar 

 effect may be produced, by long pouring from one 

 vessel into another, but not in the same degree. 



Volatile alkali renders the water milky, and forms 

 a white precipitate. 



Salt of Tartar instantly renders the water milky, 

 curdly, and causes a white precipitate, which is insi- 

 pid, but effervesces with the acids. 



The sediment which takes place, on boiling the 

 water, was mixed with rain water, often shaken to- 

 gether, then permitted to settle, and to remain for 

 two hours. It was then filtered. The quantity o^ 

 sediment first mixed with the water was re-obtained. 

 It seemed to have sustained no loss. 



A solution of silver in nitrous acid, poured into 

 the water, strikes a deep purple-colour, and causes, in 

 small quantity, a brownish precipitate, which, when 

 rubbed on paper, and set on fire, gives a bluish flame, 

 but no smell of sulphur. 



The vitriolic acid, poured on the mixture of the 

 solution and water, produced no effect; but on add- 

 ing the muriatic, a white cloud was formed ; the 

 whole became milky ; a white precipitate ensued, 



