CONTENTS. xvii 



SECTION VIII. 

 CHANGES IN THE QUANTITY OF BLOOD. 



PAGE 



186. Effects of increasing and of diminishing the total quantity of blood - 362 



SECTION IX. 

 A REVIEW OF SOME OF THE FEATURES OF THE CIRCULATION. 



187. The constant and variable factors ....... 366 



188. The influence of the venous inflow and of the distension of the 



cavities of the heart 366 



189. The heart beat influenced by the quantity and quality of the blood 



flowing through the heart 366 



190. The causes of an irregular heart beat 368 



191. The causes of the sudden cessation of the heart beat and of sudden 



death 369 



192. Instances of the working of the vaso-constrictor mechanism . . 371 



193. The influence of bodily exercise on the vascular mechanism . . 372 



194. The influence of food on the vascular mechanism .... 374 



195. The mutual relations of the heart and the vaso-motor system . . 375 



INDEX 377 



