C / 

 LIFE : ITS NATURE, ORIGIN AND 



MAINTENANCE AN ADDRESS 

 DELIVERED TO THE BRITISH ASSOCI- 

 ATION FOR THE ADVANCEMENT 

 OF SCIENCE, AT ITS MEETING AT 

 DUNDEE IN SEPTEMBER, 1912 



BY 



E. A. SCHAFER, LL.D., D.Sc., M.D., F.R.S. 



PROFESSOR OF PHYSIOLOGY IN EDINBURGH 



LONGMANS, GREEN AND CO. 



39 PATERNOSTER ROW, LONDON 

 NEW YORK, BOMBAY AND CALCUTTA 



1912 



