CONTENTS. 



PART I. GENERAL CONSIDERATIONS. 



PAGE 



INTRODUCTION ' 17 



CHAPTER I. 

 BACTERIA 30 



CHAPTER II. 

 THE BIOLOGY OF BACTERIA 43 



CHAPTER III. 

 IMMUNITY AND SUSCEPTIBILITY 65 



CHAPTER IV. 

 METHODS OF OBSERVING BACTERIA 86 



CHAPTER V. 

 STERILIZATION AND DISINFECTION 105 



CHAPTER VI. 

 THE CULTIVATION OF BACTERIA ; CULTURE-MEDIA 124 



CHAPTER VII. 

 CULTURES, AND THEIR STUDY 139 



CHAPTER VIII. 

 THE CULTIVATION OF ANAEROBIC BACTERIA 153 



CHAPTER IX. 



EXPERIMENTATION UPON ANIMALS 158 



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