mineral Substance , called Strontionite. 423 
3dly. That according to experiment hi. it contained an 
earth somewhat similar to barytes. 
4thly. That according to experiment iv. it discovers no 
crystallizing water. 
5thly. That according to experiment v. the substance con- 
tained no cobalt. 
6thly. That according to experiment vi. the substance con- 
tained no copper. 
7th ly. That according to experiment vm. it contained a 
little iron. 
8thly. That according to experiment ix. the substance con- 
tained calcareous earth. 
c^thly. That according to experiment x. the substance con- 
tained no argillaceous nor magnesian earth. 
lothly. That according to the last experiment, the base of 
this substance is distinct from the barytes. 
In order to ascertain the quantity or proportion of compo- 
nent parts of this substance, 
EXPERIMENT I. 
One hundred grains were dissolved in acid, and yielded 30 
grains of fixed air. 
EXPERIMENT II. 
The solution was diluted, and mixed with oxalic acid, by 
means of which half a grain of calcareous earth was separated 
(in the state of oxalate of lime). 
EXPERIMENT III. 
The remaining solution was decomposed, and yielded 68 
grains of pure earth. 
