CONTENTS 



OF 



ELEMENTS OF NATURAL HISTORY. 



BOOK I. 



ANATOMY AND PHYSIOLOGY. 



LESSON I. 



The Natural Sciences and their Divisions Definition of Zoology- 

 General knowledge necessary to its successful study. The Struc- 

 ture of Animals and Enumeration of their principal Organs Clas- 

 sification of the Functions of Animals Page 19 26 



LESSON II. 



Functions of Nutrition Nutrition of Organs Proof of the existence 

 of the Nutritive movement Coloring of Bones The Blood is 

 the principal agent of Nutrition Use of the Blood Study of this 

 liquid Physical properties of the Blood Red and white Blood- 

 Globules Serum Coagulation Venous and Arterial Blood 

 Transformation of Venous into Arterial Blood by the action of 

 the air P. 27 33 



LESSON III. 



Functions of Nutrition Circulation of the Blood The Heart Arte- 

 ries Veins Motion of the Blood in the Bodies of the Mammi- 

 ferae- Mechanism of the Circulation Phenomenon of the Pulse 

 Venous absorption Secretions P. 33 46 



LESSON IV. 



Functions of Nutrition Respiration Necessity of contact with the 

 Air Asphyxia Composition of the Atmosphere Principal phe- 

 nomena of Respiration The Lungs Mechanism of Respiration 



-Animal Heat P. 4754 



(xxm) 



