CONTENTS 



CHAPTER I. 



Position — Relationships. 



Morphology 18 



Physiology— Metabolism 18 



PART I. 



MORPHOLOGY. 



CHAPTER II. 



Cell Structures. 



Cytoplasm 25 



Nucleus 26 



Vacuoles 27 



Capsule 28 



Metachromatic Granules 29 



Flagellum 29 



Spores 32 



CHAPTER III. 

 Cell Forms 37 



CHAPTER IV. 



Cell Groupings 40 



CHAPTER V. 



Classification . 

 The Classification of Bergey's Manual of Determinative Bacteri- 

 ology 45 



(vii) 



am 



