CONTENTS. 



XI 



The action of the mammalian heart . 



The velocity of the blood and blood-pressure 



General 



Comparative 



The circulation under the microscope 

 The characters of the blood-flow 



Blood-pressure 



The Heakt 



The cardiac movements .... 

 The impulse of the heart .... 

 Investigation of the heart-beat from within 

 The cardiac sounds 



Causes of the sounds 

 Endo-cardiac pressures .... 

 The work of the heart 

 Variations in the cardiac pulsation . 



Comparative 



The pulse 



Features of an arterial pulse-tracing . 



Venous pulse 



Pathological 



Comparative 



The beat of the heart and its modifications 

 The nervous system in relation to the heart 

 Influence of the vagus nerve on the heart 



Conclusions 



The accelerator nerves of the heart . 

 The heart in relation to blood-pressure . 



The influence of the quantity of blood 



The capillaries •. 



Special considerations .... 



Pathological 



Personal observations 



Comparative 



Evolution 



Summary of the physiology of the circulation 

 Digestion of Food 



Foodstuffs, milk, etc. 



Embryological 



Comparative 



Structure, arrangement, and significance of the 

 The digestive juices ... 



Saliva and its action .... 



Secretion of the different glands 



teeth 



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