326 EARTHS PROPER. 



quantity either of barytes or sulphuric acid. 

 From this experiment, we see that the quantity 

 of sulphuric acid in 18*875 grains of bisulphate 

 of glucina just saturates the barytes from 26 '5 

 grains of chloricte of barium ; and consequently, 

 amounts to exactly 10 grains. 



(3.) Thus it appears, that 18*875 grains of bi- 

 sulphate of glucina contain 3*25 grains of glu- 

 cina and 10 grains of sulphuric acid ; the rest 

 must be water : consequently, the constituents 

 of the salt are 



Sulphuric acid 



Glucina 



Water 



18-875 



Now, 10 is equivalent to 2 atoms of sulphuric 

 acid, and 5*625 to 5 atoms of water. And corn- 

 Atom of paring this analysis with those of Berzelius, no 

 doubt can remain that 3*25 represents the weight 

 of an atom of glucina. 



Atom of We have no data to determine the atomic 

 weight of glucinum. But analogy leads to the 

 supposition, that glucina is a compound of 1 atom 

 glucinum and 1 atom oxygen on that supposi- 

 tion an atom of glucinum will weigh 



