TABLE OF CONTENTS. 



PAGK 



INTRODUCTION, 1 



PART I. 



GENERAL PHYSIOLOGY. 

 THE PHYSIOLOGY OF ANIMAL CELLS. 



SECTION I. 



THE STRUCTURE OF ORGANIZED BODIES. 



I. THE GENERAL PROPERTIES OF CELLS, . . . . .12 



II. THE ORIGIN OF CELLS, . .14 



III. THE MODIFICATION IN THE FORM OF CELLS, .... 26 

 IT. THE DEVELOPMENT OF TISSUES AND ORGANS, . . , 31 



SECTION II. 



CELLULAR PHYSICS. 



I. THE PHYSICAL PROCESSES IN CELLS, . . . ... 37 



1. Cohesion, 38 ; 2. Adhesion, 40 ; 3. Capillarity, 40 ; 4. Solution, 43 ; 

 5. Imbibition, 44 ; 6. Filtration, 48 ; 7. Diffusion of Liquids, 49 ; 

 8. Osmosis, 51; 9. Diffusion of Gases, 56 ; 10. Absorption of Gases, 

 58. 



II. THE PHYSICAL PROPERTIES OF THE TISSUES, . . . .61 



1. Cohesion, 62 ; 2. Elasticity, 65 ; 3. Optical Characteristics, 68 ; 4. 

 Electrical Phenomena, 70. 



III. MECHANICAL MOVEMENTS IN CELLS, .70 



1. Motion Produced by Imbibition in Cells, 70 ; 2. Protoplasmic Move- 

 ments, 72 ; (1) Movements in Protoplasmic Contents of Cells, 

 73 ; (2) Ciliary Movement, 77 ; (3) Movement in Specialized 

 Contractile Tissues, 81. 



GENERAL CONDITIONS GOVERNING PROTOPLASMIC MOVEMENT, . 82 

 1. Temperature, 82; 2. Degree of Imbibition, 82; 3. The Supply of 

 Oxygen, 83; 4. Various Chemical and Physical Agents, 84. 



(vii) 



