‘210 ESSAYS AND OBSERVATIONS 
phenomena, but appeared upon a nearer 
view to be attended with confequences 
‘ that were fo very new and extraordinary, 
as to render fufpicious the principles from 
which they were drawn. 
I refolved however to examine, ina par- 
ticular manner, fuch of thefe confequen- 
ces as were the moft unavoidable, and 
found, the greateft number of them might 
be reduced to the following propofitions. 
I. Ir we only feparate a quantity of 
air from lime and alkalis, when we ren- » 
der them cauftic they will be found to 
lofe part of their weight in the operation, 
but will faturate the fame quantity of a- 
cid as before, and the faturation will be 
performed without effervefcence. 
II, Ir quick lime be no other than a 
calcarious earth deprived of its air, and 
whofe attraCtion for fixed air is ftronger 
than that of alkalis, it follows, that, by 
adding to it a fufficient quantity of alkali 
faturated with air, the lime will recover 
the whole of its air, and be entirely reito- 
red to its original weight and condition : 
And 
