By whom was it revived?

After having long lain buried, the famous Roger Bacon revived it; and
from his time to the present day it has gradually progressed to a
state of perfection. In former times, the art of chemistry consisted
only in the knowledge of working metals, &c.; but in latter ages, its
bounds have been greatly enlarged. The knowledge of Chemistry leads to
many interesting and important discoveries, and the arts and
manufactures are greatly indebted to its aid; indeed, it is requisite
to be a good chemist, in order to attain to perfection in many of
them.

_Requisite_, necessary.


By what other name has Chemistry been known?

It was sometimes called _Alchemy_; by which is properly understood a
refined and mysterious species of chemistry, formerly much practised.


What were its objects?

The discovery of the art of converting metals into gold, including the
search after the "Philosopher's Stone," by which this change was to be
effected; and the discovery of a panacea or medicine for the cure of
all diseases.