CHYMIST.
45
from a certain substantial Form, whose Origination they leave more obscure than what it is assum’d to explicate.
But to proceed to a new Proposition.
Propos. III.I shall not peremptorily deny, that from most of such mixt Bodies as partake either of Animal or Vegetable Nature, there may by the Help of the Fire, be actually obtain’d a determinate number (whether Three, Four or Five, or fewer or more) of Substances, worthy of differing Denominations.
Of the Experiments that induce me to make this Concession, I am like to have occasion enough to mention several in the prosecution of my Discourse. And therefore, that I may not hereafter be oblig’d to trouble You and my self with needless Repetitions, I shall now only desire you to take notice of such Experiments, when they shall be mention’d, and in your thoughts referre them hither.
To these three Concessions I have but this Fourth to add, That