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Excerpt from History of the Progress and Present State of Animal Chemistry, Vol. 3 of 3 It would appear, therefore, all the ancients had fome idea of a living principle which animates the corporeal machine; and this is afl'erted by Plutarch, who ought to, know hell the fentiments of the ancients, having given a treatile on their opinions. He lays, as being acknow ledged by all of them, that fpirit is only a fubtile matter, and our foul, which is the air, keeps us alive; and in this manner all the world contains fpirit and air, which are only two names fignifying the fame thing. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.