In conformity to the Act of the Congress of the United States, entitled, “An Act for the encouragement of Learning, by securing the copies of Maps, Charts and Books, to the Authors and Proprietors of such Copies, during the times therein mentioned:” and also to an Act entitled, “An Act supplementary to an Act, entitled, An Act for the encouragement of Learning, by securing the Copies of Maps, Charts and Books, to the Authors and Proprietors of such Copies during the times therein mentioned; and extending the benefits thereof to the Arts of Designing, Engraving and Etching Historical and other Prints.”
JOHN W. DAVIS,
Clerk of the District of Massachusetts
TRANSLATOR’S PREFACE.
The Translator of the Work which is here offered to the Public, feels it quite unnecessary to expatiate upon the merits of its Author, whose ideas and classifications in Physiology are now very generally adopted. He has supposed, however, that the experiments which constitute the Second Part of the Work, are not so familiar to Professional Men, as many of the conclusions which have been deduced from them, and therefore has presumed that a greater publicity of these experiments will by no means be unserviceable. Dr. Kentish, in his account of Baths, has mentioned the circumstances which led to this translation.