v i CONTENTS 



CHAPTER XI. 



PAGE 



The Use of Animals for Diagnostic and Test Purposes . .135 



CHAPTER XII. 



The Procuring of Material for Bacteriological Examination from Those Suffer- 

 ing from Disease . . . . . . . . . 138 



CHAPTER XIII. 

 The Relation of Bacteria to Disease . .141 



CHAPTER XIV. 



The Antagonism Existing between the Living Body and Micro-organisms . 155 



CHAPTER XV. 



Nature of the Protective Defences of the Body and Their Manner of Action 



Ehrlich's "Side-chain" Theory . . 162 



CHAPTER XVI. 

 The Nature of the Substances Concerned in Agglutination . . . .175 



PART II. 



BACTERIA PATHOGENIC TO MAN INDIVIDUALLY 

 CONSIDERED. 



CHAPTER XVII. 

 The Bacillus and the Bacteriology of Diphtheria . . . . .185 



CHAPTER XVIII. 



The Bacillus and the Bacteriology of Tetanus . . 222 



CHAPTER XIX. 



The Colon Bacillus Group, Paracolon, Paratyphoid Dysentery and Paradysen- 



tery Bacilli . .... .234 



CHAPTER XX. 

 The Typhoid Bacillus (Bacillus Typhosus) . . 263 



CHAPTER XXI. 



The Bacillus of Tuberculosis 288 



