CONTENTS ix 



CHAPTER XXIII. 



Bacterium (Syn. Bacillus) Diphtherias Its Isolation and Cultiva- 

 tion Morphological and Cultural Peculiarities Pathogenic 

 Properties Variations in Virulence Bacterium Pseudodiph- 

 theriticum Bacterium Xerosis Diphtheria Antitoxin . . 454 



CHAPTER XXIV. 



Typhoid Fever Study of the Organism Concerned in its Produc- 

 tion Its Morphological, Cultural, and Pathogenic Properties 

 Bacillus Coli Bacillus Paratyphosus Its Resemblance to- 

 Bacillus Typhosus . . . . '. . . ; . . . . . . 481 



CHAPTER XXV. 



The Group of Bacilli Found in Cases of Epidemic, Endemic, and 

 Sporadic Dysentery The Morphological, Biological, and 

 Pathogenic Characters of the Several Members of the Group 

 The Differentiation of the Different Types of Bacilli . . 514 



CHAPTER XXVI. 



The Spirillum (Comma Bacillus) of Asiatic Cholera Its Mor- 

 phological and Cultural Peculiarities Pathogenic Properties 

 The Bacteriological Diagnosis of Asiatic Cholera Micro- 

 spira Metchnikovi Microspira ("Vibrio") Schuylkilliensis 

 Its Morphological, Cultural, and Pathogenic Characters . 522 



CHAPTER XXVII. 



Study of Bacterium Anthracis, and of the Effects Produced by Its 

 Inoculation into Animals Peculiarities of the Organism 

 Under Varying Conditions of Surroundings Anthrax Vac- 

 cines Anthrax Immune Serum 556 



CHAPTER XXVIII. 



The Nitrifying Bacteria The Bacillus of Tetanus The Bacillus 

 of Malignant Edema The Bacillus of Symptomatic Anthrax 

 Bacterium Welchii Bacillus Sporogenes 573 



