CONTENTS. 



PART I. GENERAL CONSIDERATIONS. 



PAGE 



INTRODUCTION 17 



CHAPTER I. 

 BACTERIA 30 



CHAPTER II. 

 THE BIOLOGY OF BACTERIA 43 



CHAPTER III. 

 IMMUNITY AND SUSCEPTIBILITY 58 



CHAPTER IV. 

 METHODS OF OBSERVING BACTERIA 73 



CHAPTER V. 

 STERILIZATION AND DISINFECTION 90 



CHAPTER VI. 

 THE CULTIVATION OF BACTERIA ; CULTURE-MEDIA 106 



CHAPTER VII. 

 CULTURES, AND THEIR STUDY 117 



CHAPTER VIII. 

 THE CULTIVATION OF ANAEROBIC BACTERIA 130 



CHAPTER IX. 

 EXPERIMENTATION UPON ANIMALS 134 



13 



