320 EARTHS PROPER. 



gummy like sulphate of glucina was composed 

 of 



Glucina 1-001 or 32139 



Sulphuric acid 1-5573 - 5 



A portion of the gummy liquid, obtained as 

 above described, was heated over a spirit lamp 

 till it became dry, when it resembled burned 

 alum. After ceasing to give out water from the 

 heat of a spirit lamp, Berzelius exposed 2-5 parts 

 of it to a red heat; the glucina left weighed 

 1*24 parts. Berzelius, considering the salt as 

 perfectly dry, concludes it was composed of 



Glucina 1-24 or 4-92 



Sulphuric acid 1*26 - 5 



2-50 



It is obvious that the second of these three salts 

 is neutral, being composed of one atom of acid 

 and one atom of glucina. The first is a bisul- 

 phate, or a compound of two atoms acid and one 

 atom glucina, while the third is a sulphate com- 

 posed of one atom acid, and H atom glucina. 



These three analyses, however, are not abso- 

 lutely correct; for the atomic weight of glu- 

 cina differs a little in each. 



By the first it is 3.2627 



second 3-2139 



third 3-2800 



3)9-7566 

 Mean = 3-2522 



