CONTENTS 



PAGE 



I. The Germ Theoey of Disease .... 7 



II. Some op the Pboblems op Bacteriology . . 13 



III. Specific Diseases and Specific Bacteria . . 31 



IV. Self-Limitation and Immunity .... 43 

 V. The Contest against Infection .... 58 



VI. Retrospect and Prospect of Progress . . 70 



VII. Anti-Toxic Sebum Therapy 82 



VIII. Serum Therapy in Diphtheria and other 



Diseases 89 



IX. The Position of Vaccination in Pathology and 



Bacteriology .... . . 99 



X. Bacteria and Bacteriological Methods"and 



Diagnosis Ill 



XL Non-Bacterial Factors in Infectious Diseases 146 



