INTERNATIONAL MEDICAL MONOGRAPHS 



General Editors ( LEONARD HlLL M ' B " F - R ' S ' 

 I WILLIAM BULLOCH, M.D. 



THE PROTEIN ELEMENT 

 IN NUTRITION 



BY 



MAJOR D. McCAY, 



M.B., B.Ch., B.A.O., M.R.C.P., I.M.S. 



PROFESSOR OF PHYSIOLOGY, MEDICAL COLLEGE, CALCUTTA 



ILLUSTRATED 



LONDON 



EDWARD ARNOLD 



NEW YORK : LONGMANS, GREEN & CO 



1912 



[All rights reserved} 



