OF LEAD. 



ing the solution, and allowing it to crystallize 

 spontaneously octahedral crystals of a deep yel- 

 low colour were deposited. He analyzed these 

 crystals, and found the constituents 



Acid . . 23-925 



Protoxide of lead 70-375 

 Water 5-700 



100-000 



If \ve consider them as composed of 



1 atom hyponitrous acid 4*75 

 1 atom protoxide of lead 14--00 

 1 atom water 1-125 



19-875 



the constituents in 100 parts of the salt will be 



Acid . 23-90 



Oxide . 70-44 

 Water 5-66 



100 



No\v, these numbers almost coincide with those 

 of Berzelius, and induced me to consider the 

 salt as a hyponitrite rather than a nitrite, which is 

 the view taken both by Berzelius and Chevreul. 



6. Carbonate of lead. This salt occurs na- Carbonate, 

 tive, and is known by the name of white lead. 

 Its primary form is a right rhombic prism. It 

 is anhydrous, and is composed of 



VOL. II. A a 



