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CH. IV.] version is less definite: "C'est absolument comme si l'on pretendoit que l'architecture peut se mêler de fabriquer des instruments de musique."

Note 1, p. 38. It is equally absurd to think, &c.] This is an unanswerable objection to Empedocles and his followers who made all bodies to be combinations, in differing proportions, of the elements—for whether the Vital Principle be harmony or a combination of particles, there must, as combinations are various, (since that which forms bone is not that which forms flesh,) be several in each member of the body; and if it be not, there must then be a second Vital Principle to maintain that relation. The succeeding passages are, necessarily, from the absence of precise knowledge atomic proportion and relation, obscure; but they point to opinions which, although not based on science, anticipate, when closely looked into, much that is now admitted.

Note 2, p. 40. Now, to maintain that Vital Principle, &c.] The argument reverts to the question whether the Vital Principle can be subjected to motion casually —be subject, that is, to motion through the body which is moved by it, and thus partake of locomotion; but