the Carinthian Molybdate of Lead . 33 9 
distilled with it, and that the latter was converted into a white 
oxyde. 
The same is also proved by my experiments on various 
oxydes distilled with sulphate of ammoniac ; for the molybdic 
acid was the only one which could thus be deprived of oxygen, 
not excepting the tungstic acid, which has been supposed 
much to resemble that of molybdsena. 
