PREFACE. Vll 



Nausea, and Want of Breath ; and the External Sensations, viz., 

 Touch, Temperature, Taste, Smell, Hearing, and Sight. 



The foregoing subjects occupy the First Volume.* 



The Second Volume is devoted to the functions of Vegetative 

 Life, as follows :f 



Digestion, with an account of the Nature and Value of the dif- 

 ferent kinds of Food. 



Absorption, including General Absorption, Absorption of the 

 digested Food, and Interstitial Absorption. 



The Circulation of the Blood, its Causes and Phenomena, and 

 the Quantity of Blood in the Body. 



Nutrition, both General and Separative, of the Fluids and 

 Solids of the body, with the Uses of the Blood, and its Vitality, 

 the effects of Hemorrhage, and the phenomenon of the Coagula- 

 tion of the Blood. 



Sanguification, or the processes by which the Blood is renewed. 

 This includes an account of the Uses of the Ductless Glands, to- 

 gether with that of the Liver, considered as a Blood-Gland. 



Secretion, or the processes by which certain Glands separate 

 materials from the Blood, for use in the Living Economy. 



Excretion, or the processes by which other Glands separate 

 materials from the Blood, to be removed from the 'Economy. 



Kespiration, or the Function of Breathing, by which the Blood 

 is purified, and the whole body maintained fit for the performance 

 of all the Functions. 



Animal Heat, Light, and Electricity, and their dependence on 

 vita-Chemical action. 



Animal Statics and Dynamics, treated of in a separate Section, 

 comprehending an account of the Specific Gravity, the Stature, 

 and the Weight of the body and its Organs ; the balance between 

 the Ingesta and the Egesta ; the various Forms of Force or En- 

 ergy exerted in the living body ; and the Relations of these Forces 

 to the quantity of Food and Air consumed, and to the Chemical 

 Actions by which such Forces are produced. 



* Ending on p. 479 of the present edition. 



f Commencing on p. 480 of the present edition. 



