WHAT IS VITAL FORCE? 



A SHORT AND COMPREHENSIVE SKETCH, 



INCLUDING 



VITAL PHYSICS, ANIMAL MORPHOLOGY, 

 AND EPIDEMICS; 



TO WHICH IS ADDED 



AN APPENDIX UPON GEOLOGY 



IS THE DETRITAL THEORY OF GEOLOGY TENABLE? 



RICHARD FAWCETT BATTYE. 



LONDON: 

 TRUBNER & CO., LUDGATE HILL. 



1877. 



All rights /Y.-Y' 



