CONTENTS 



PAGE 



Letter of the Master General, Michael Browne, O.P., 



S.T.M, Ph.D V 



Introduction: The Dignity of Science xvii 



By James A. Weisheipl, O.P., D.Phil. (Oxon.) 



PART ONE 

 SCIENTIFIC METHODOLOGY 



Demonstration and Self-Evidence 3 



By Edward D. Simmons, Ph.D. (Marquette Univ.) 



The Significance of the Universal ut nunc 27 



By John A. Oesterle, Ph.D. (Univ. of Notre Dame) 



William Harvey, M.D.: Modern or Ancient Scientist? 39 



By Herbert Ratner, M.D. (Loyola Univ., Chicago) 



PART TWO 



HISTORY OF SCIENCE 



Medicine and Philosophy in the Eleventh and Twelfth Cen- 

 turies: The Problem of Elements 75 

 By Richard P. McKeon, Ph.D. (Univ. of Chicago) 



The Origins of the Problem of the Unity of Form . 121 



By Daniel A. Callus, O.P., S.T.M., D.Phil. (Oxford 

 Univ., England) 



VII 



79879 



