HUMAN 

 PHYSIOLOGY 



BY 



PROFESSOR LUIGI LUCIANI 



DIRECTOR OF THE PHYSIOLOGICAL INSTITUTE OF THE ROYAL UNIVERSITY OF ROME 



TRANSLATED BY 



FRANCES A. WELBY 



WITH A PREFACE BY 



J. N. LANGLEY, F.R.S. 



PROFESSOR OF PHYSIOLOGY IN THE UNIVERSITY OF CAMBRIDGE 



IN FIVE VOLUMES 

 VOL. Ill 



EDITED BY 



GORDON M. HOLMES, M.D. 

 MUSCULAR AND NERVOUS SYSTEMS 



MACMILLAN AND CO., LIMITED 

 ST. MARTIN'S. STREET, LONDON 



1915 



