TABLE OF CONTENTS 



CHAPTER PAGE 



I. The Problem of Bacterial Classification i 



II. The General Systematic Relations of the Coccaceae ... 31 



III. Methods Adopted in the Comparative Study of the Cocci 41 



IV. Subfamilies and Genera of the Coccaceae 76 



V. The Genus Diplococcus ; no 



VI. The Genus Ascococcus 133 



VII. The Genus Streptococcus 139 



VIII. The Genus Aurococcus 172 



IX. The Genus Albococcus 192 



X. The Genus Micrococcus 209 



XI. The Genus Sarcina 226 



XII. The Genus Rhodococcus 239 



Summary of the Genera and Species of the Coccaceae 249 



Key to the Genera and Species of the Coccaceae 263 



Bibliography 267 



