Transcriber's note: Text enclosed by underscores is in italics (_italics_). Small capital text has been replaced with all capitals. The carat character (^) indicates that the following letter is superscripted (example: y^t). HARVEY'S VIEWS ON THE USE OF THE CIRCULATION OF THE BLOOD COLUMBIA UNIVERSITY PRESS SALES AGENTS NEW YORK: LEMCKE & BUECHNER 30-32 WEST 27TH STREET LONDON: HUMPHREY MILFORD AMEN CORNER, E.C. [Illustration: A portrait of William Harvey by Cornelius Jonson. This picture forms the frontispiece of _Guilielmi Harveii Opera Omnia_, London, 1766.] HARVEY'S VIEWS ON THE USE OF THE CIRCULATION OF THE BLOOD BY JOHN G. CURTIS, M.D., LL.D. FORMERLY PROFESSOR OF PHYSIOLOGY IN COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK BASED ON A LECTURE DELIVERED IN 1907, BEFORE THE JOHNS HOPKINS HOSPITAL HISTORICAL CLUB AT BALTIMORE [Illustration: logo] New York COLUMBIA UNIVERSITY PRESS 1915 _All rights reserved_ COPYRIGHT, 1915, BY COLUMBIA UNIVERSITY PRESS. Set up and electrotyped. Published December, 1915. Norwood Press J. S. Cushing Co.--Berwick & Smith Co. Norwood, Mass., U.S.A. PREFATORY NOTE The writings of William Harvey, as published by him, and the letters published as part of his works, are all in Latin. The passages from Harvey's works which appear in English in the present paper are in part translations by the late Dr. Willis, with changes, sometimes considerable, by the present writer. In large part, however, the translations from Harvey are not even based upon Dr. Willis's work, but have been made by the present writer directly from the original Latin. Naturally he assumes responsibility for whatever he prints in English to represent Harvey's words; and to attempt, in print, a more minute discrimination between his own work as a translator and that of Dr. Willis would be tedious and unprofitable. Whoever may wish to make such discrimination may readily do so, however, as, in the present paper, a reference is made by page and line in the case of each translated passage, not only to the Latin text of Harvey's _Opera Omnia_, published by the Royal College of Physicians of London in 1766, but also to Willis's English translation thereof, published by the Sydenham Society in 1847, and entitled "The Works of William Harvey, M.D." Such references to the Sydenham Society's edition are indispensable for another purpose, viz.: in order that to each translated passage from Harvey in the present paper a context in English may readily be given by the reader.