l^^ ESSAYS and OBSERVATIONS 



every refpecl like the tartarus viirioiatus,. 

 as nfually prepared. 



Upon two ounce? of the fame ^4'"^. Jo- 

 Itib'l- I poured one ounce of Ipirit of fea 

 fait, made after Glauber's manner; by 

 diiiillation tbers was produced a liquor 

 of the iame kind v/ith that of the pre- 

 ceeding experiment. The remaining fait 

 indeed was notdiflolvednor chryftallized ; 

 but, from its ta{le,and by its precipitating 

 a folutlon of filver in aq, fort, it appeared 

 to be of the muriatic kind- 



Aftkr this, I made an experiment on 

 another neutral fait in which the acid of 

 vinegar is united to the alcaline fait of 

 tartar, which is commonly known by the 

 name of tartana regeneratiis, I took one 

 ounce and an half of fait of tartar, and 

 poured dillilled vinegar upon the dry fait 

 at feveral times, ihaking the glafs fre- 

 quently, till fifteen ounces of the acid 

 were employed: The veflei was then 

 fet on a fand-bath, and the liquor gradu- 

 ally infpiffated till there rem.ained four 

 ounces 27 grains of a moifl:, greafy, faline 

 fubftance, of a brownifh colour, like 



coarfe 



