AN ANATOMICAL DISQUISITION 



ON THE 



CIRCULATION OF THE BLOOD 



TO 



JOHN RIOLAN, JUN, OF PARIS 



A MOST SKILFUL PHYSICIAN J THE CORYPHAEUS OF ANATOMISTS 



REGIUS PROFESSOR OF ANATOMY AND BOTANY IN THE 



UNIVERSITY OF PARIS; DEAN OF THE SAME UNIVERSITY 



AND FIRST PHYSICIAN TO THE QUEEN 



MOTHER OF LOUIS XIII. 



BY WILLIAM HARVEY, AN ENGLISHMAN 



PROFESSOR OF ANATOMY AND SURGERY IN THE ROYAL COLLEGE 



OF PHYSICIANS OF LONDON } AND PRINCIPAL PHYSICIAN TO 



HIS MOST SERENE MAJESTY THE KING. 



CAMBRIDGE, 1649. 



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