CONTENTS. 



CHAPTER I. 



INTRODUCTORY. — SOME GENERAL PRINCIPLES. 



SECTION I. 

 Relation of the Three Kingdoms of Nature. 



Living vs. Nonliving, I. — (i) Organization, (2) cellular structure, 

 (3) growth, 2. (4) Life history, (5) reproduction, (6) metabolism, 3. 



Animals vs. Plants, 4. — (1) Sensation and volition, (2) nature of 

 food, 5. (3) The posession of a stomach, 6. (4) Waste and supply, 7. 



SECTION II. 



Definition of zoology, 8. Divisions of zoology : (1) comparative 

 anatomy, (2) comparative physiology, (3) comparative embryology, (4) 

 taxonomy, 9 ; (5) descriptive zoology, <6) paleoznology, (7) geographical 

 zoology, 10 ; this course consists mainly of second and first, 11. 



SECTION III. 



General Cellular Structure of Animals. 



Definition of cell, animal vs. vegetal cell, 11. Size, softness, trans- 

 parency, differentiation, 12. 



Tissues. 



Definition, 12. Kinds : (1) Connective, 13 ; (2) cartilage, (3) bony, 

 15 ; (4) muscular, 17 ; (5) nervous, 19 ; (6) epithelial, 20. Law of 

 differentiation of cells, 22. 



SECTION IV. 



Organs and Functions of Animal Body. 



Classification of function, 23. Animal functions defined, organic 

 functions defined, subdivisions, order of treatment, 24. 



vii 



