TABLE OF CONTENTS. 



PAGE 



Preface iii 



FIKST PART. 



FIRST LECTURE. 



Introduction First Traces Incentives to the Study First Definite 

 Announcement of the Germ Theory Phlogiston Zymosis 

 Jenner Fermentation Hypothesis Vaccine Beginning of the 

 Nineteenth Century Early Discoveries Astier Schwan Lie- 

 big's Views Difficulties Schroeder's Discoveries Schroeder's 

 Conclusions Pasteur and his Work Needham and Spallanzani 

 Pasteur's Plan of Work 11 to 34 



SECOND LECTURE. 



Bastian and his Work Archebiosis Logical Sequence Difficulties 

 Modes of Propagation of Micro-organisms Utilizing Discoveries 

 Lister's Antiseptic Surgery Nature of the Evidence Direct 

 Examinations for Micro-organisms Evidence Unsatisfactory 

 Miasm and Contagion Miasmatic Contagion Infection Experi- 

 ments Discussions by Important Men 35 to 56 



THIRD LECTURE. 



Beale's Work The Amoeboid Theory of Contagion Pasteur The 

 Bacillus Anthracis Koch and his Work Aniline Staining Dry 

 Slide Cultivations Infection Experiments Pathogenic Micro- 

 organisms now certainly Demonstrated What is Necessary for 

 the Demonstration of a Pathogenic Micro-organism The Evi- 

 dence that Pathogenic Micro-organisms are Different from 

 ordinary Bacteria Spores and Habits of Micro-organisms 



Summary 57 to 76 



V 



