52 On the Compofition and Properties 
the redundant nitric acid, compofes nitrate of ammoniac} 
but great part of the nitrate of ammoniac was carried off in 
the vapour ftate, exhibiting white fumes, and fublimate, as 
above obferved. 
The mode of making the experiments with the other acids 
was of courfe different from the former experiment. ° 
Experiment 11. Twenty-five grains of the above animal 
oxide, and half an ounce of water, were put into a bottle 
capable of containing three pints; a ftream of oxymuriatic 
acid gaz, from manganefe and muriatic acid, was made to pafs 
into the bottle, and upon the charge, for twelve hours; and, 
for twenty-four hours more, oxymuriatic gaz kept iffuing, 
but in fmaller quantity, and circulating through the bottle. 
The oxide, by this time, was completely diffolved. Upon 
adding lime to a little of the folution of it, ammoniac was 
difengaged; and, upon adding fulphuric acid, there was a 
difengagement of oxymuriatic acid. On evaporation, how- 
ever, I obtained nothing but muriate of ammoniac, with 
which was mixed a little manganefe. 
In this experiment, I could not doubt that the carbon 
had been carried off, in the ftate of carbonic acid, by the 
oxygen of the oxymuriatic acid; and thus ammoniae was 
compounded, from the union of the two remaining confti- 
tuent parts of the oxide, vz. the nitrogen and hydrogen. 
The oxymuriatic acid, united to the ammoniac, parted with 
oxygen, and became muriatic acid during evaporation ; 
hence, muriate of ammoniac was formed. 
Experiment 111, The above experiment was repeated, only 
the gaz was nitro-muriatic gaz, from a mixture of nitric and 
muriatic acids. The refult was the fame as in the laft ex- 
periment, except that the product was a mixture of nitrate, 
and muriate, of ammoniac. 
I made other experiments of the fame kind; but their 
refults were fo nearly the fame as thofe above related, that 
T fhall not give an aecount of them. By the unexpected 
iffue of thefe experiments, all my hopes of acidifying the 
animal 
