WHAT IS PHYSICAL LIFE 



ITS ORIGIN AND NATURE 



BY 



WILLIAM HANNA THOMSON, M.D., LL.D. 



Author of "Brain and Personality" 



CONSULTING PHYSICIAN TO THE BOO8EVELT HOS- 

 PITAL; TO THE NEW YOBK STATE MANHATTAN 

 HOSPITALS FOB THE INSANE; AND TO THE NEW 

 YOBK BED CBOS8 HOSPITAL; FOBMEBLY PBOFESSOB 

 OF THE PBACTICE OF MEDICINE AND OF 

 DISEASES OF THE NEBVOUS SYSTEM, NEW YOBK 

 DNIVEB8ITY MEDICAL COLLEGE; EX-PBE8IDENT 

 OF THE NEW YOBK ACADEMY OF MEDICINE, ETC. 



NEW YORK 



DODD, MEAD AND COMPANY 

 1909 



I8&4U. 



