THE AMERICAN ANATOMICAL MEMOIRS 



THE MORPHOLOGY AND EVOLUTIONAL 

 SIGNIFICANCE OF THE PINEAL BODY 



BEING 



PART I 



OF 



A CONTRIBUTION TO THE STUDY OF THE EPIPHYSIS 



CEREBRI WITH AN INTERPRETATION OF THE 



MORPHOLOGICAL, PHYSIOLOGICAL AND 



CLINICAL EVIDENCE 



FREP^RICK ITILNEY, M.D., PH.D. 



PROFESSOR OF NEUROLOGY, COLUMBIA UNIVERSITY 

 AND 



LUTHER F. WARREN, A.B., M.D. 



PROFESSOR OF MEDICINE, LONG ISLAND COLLEGE HOSPITAL 



1919 



PUBLISHED BY 

 THE WISTAR INSTITUTE OF ANATOMY AND BIOLOGY 



PHILADELPHIA 



