DEDICATED 

 TO THE MEMORY OF MY FRIEND AND TEACHER 



SIR EDWARD C. STIRLING 



C.M.G., M.A., M.D., D.Sc. (CANTAB.), F.R.S., F.R.C.S. (ENO.) 



PROFESSOR OF PHYSIOLOGY IN THE UNIVERSITY OF ADELAIDE, SOUTH AUSTRALIA; DEAN OF 



THE FACULTY OF MEDICINE AND CONSULTING SURGEON OF THE ADELAIDE HOSPITAL; 



CORRESPONDING MEMBER OF THE ZOOLOGICAL SOCIETY OF LONDON AND 



HONORARY FELLOW OF THE ROYAL ANTHROPOLOGICAL INSTITUTE 



OF GREAT BRITAIN AND IRELAND 



IN TOKEN OF INTELLECTUAL INDEBTEDNESS AND 

 PERSONAL AFFECTION 



