TABLE OF CONTENTS 



PAGE 



INTRODUCTION 1 



CHAPTER I. General Physiological Method 4 



1. Physical, Chemical, and Histological Methods 4 



2. Experiments on Living Animals 5 



3. Experiments on Surviving Organs 6 



4. The Graphic Method 6 



A. The Kymograph 7 



B. Time Recorders 10 



C. Recording by Air-transmission 11 



D. Registration by Photography . 13 



CHAPTER II. The Cell 15 



1. General Considerations 15 



A. The Cell as an Elementary Organism 15 



B. The Reciprocal Relations between the Nucleus and Protoplasm . .17 



C. Physical and Chemical Properties of Protoplasm . . . . . , 19 



D. Morphology of the Cell Contents . . . . '. ' . . .20 

 2. The Vital Phenomena of Cells . . . . . . . . . .22 



A. Introductory Survey . . . . . , . . . . " . .22 



B. The Ingestion of Food . , . . .30 



C. Digestion . . . . . . .38 



D. The Oxidative Processes 39 



E. Elimination of Decomposition Products 40 



F. Secretion 41 



G. Motility 42 



H. Production of Light 45 



I. Formation of Heat 46 



J. Generation of Electricity 46 



3. The Effect of External Influences on Cells 50 



A. On Stimuli in General 50 



B. Automatic Excitation 52 



C. Chemical Stimulation 52 



D. Mechanical Stimulation 56 



E. Stimulation by Means of Light 56 



F. Stimulation by Means of Heat 58 



G. Electrical Stimulation 59 



H. Cosmic Influences .61 



I. Conductivity 62 



J. The Assimilative Processes Induced by Stimulation .... 62 



K. Paralysis and Fatigue 65 



4. Death 66 



