4 
PHYSICAL ano LITERARY. 205 
inflammable bodies, and of corroding and 
diffolving animals and vegetables; fo that 
the attraGiion both of the acid and alkali 
for thefe feveral f{ubitances feems to be fuf> 
pended till they are again feparated from 
one another. 
CrUupDeE lime was therefore confidered 
as a peculiar acrid earth rendered mild 
by its union with fixed air: And quick- 
lime as the fame earth, in which, by ha- 
ving feparated the air, we difcover that a- 
crimony or. attraction for water, for ani- 
mal, vegetable, and for inflammable fub- 
flances. 
Tat the calcarious earths really lofe 
a large quantity of air when they are 
burrt to quick lime, feems fufficiently pro- 
ved by an experiment of Mr Margraaf *, 
an exceedingly accurate and judicious 
chymift. He fubjected eight ounces of 
oiteocolla to diitillation in an earthen re- 
tort, finifhing his procefs with the moft 
violent fire of a reverberatory, and caught 
in the receiver only two drams of water, 
which 
* Mem. de Il’Acad, de Berlin, an: 1748, ps 546 
