CONTENTS. 



Page, 

 CHAP. I. 



Animal Heat is not in the direct ratio of the quan- 

 tity of oxygen inhaled, but in the inverse ratio of 

 the quantity of blood exposed to this principle . 1 



CHAP. II. 



The Cause of Animal Heat ........ 34 



CHAP. IIT. 



Secreting surfaces are not dependent on Nervous 

 communication between their own individual parts 

 and the origin of the nerves, nor does Galvanism 

 re-establish or excite their particular functions by 

 maintaining such a relation ..... .68 



CHAP. IV. 



The Distribution of the Blood at different Ages and 

 Seasons ............. ; 98 



CHAP. V. 



Temperature at different Ages ...... 121 



CHAP. VI. 



The manner in which the System is adapted to the 

 influence of Cold 143 



