PHYSIOLOGY 

 AND NATIONAL NEEDS 



EDITED BY 



W. D. HALLIBURTON 



M.D., LL.D., F.R.C.P., F.R.S. 



PROFESSOR OF PHYSIOLOGY, KING'S. COLLEGE, LONDON 



J/Y;./'^^ 



» < 



31^1 



LONDON 



CONSTABLE AND COMPANY Ltd. 



1919 



