X CONTENTS. 



CHAPTER XX. 



PAGES 



Bacillus diphtherise — Its isolation and cultivation — Morphologi- 

 cal and cultural peculiarities — Pathogenic properties — Vari- 

 ations in virulence — Pseudo-diphtheritic bacilli — Diphthe- 

 ria antitoxin . . .... 386-407 



CHAPTER XXI. 



Typhoid fever— Study of the organism concerned in its pro- 

 duction — Bacterium coli commune — Its resemblance to the 

 bacillus of typhoid fever — Its morphological, cultural, and 

 pathogenic properties — Its differentiation from taciUus ty- 

 phosus — Methods of isolating the typhoid bacillus — Bacillus 

 dysenterise — Its discovery — Morphology — Biology — Patho- 

 genesis — Protective inoculation 408-444 



CHAPTER XXII. 



The spirillum (comma bacillus) of Asiatic cholera — Its 

 morphological and cultural peculiarities — Pathogenic prop- 

 erties — The bacteriological diagnosis of Asiatic cholera 



445^72 



CHAPTER XXIII. 

 Organisms of interest, historically and otherwise, that have 

 been confounded with the spirillum of Asiatic cholera — 

 Their peculiarities and differential features — Vibrio proteus, 

 or bacillus of Finhler and Prior — Spirillum tyrogennm, or 

 cheese spirillum of Deneke — The spirillum of Miller — Vibrio 



Metchnihovi 



473-491 



CHAPTER XXIV. 

 Study of bacillus anthracis, and the effects produced by its in- 

 oculation into animals — Peculiarities of the organism under 

 varying conditions of surroundings 492-506 



CHAPTER XXV. 

 The most Important of the organisms found in the soil — The 

 nitrifying bacteria — The bacillus of tetanus — The bacillus 

 of malignant oedema — The bacillus of symptomatic anthrax 507-533 



CHAPTER XXVI. 

 Infection and immunity — The types of infection ; intimate 

 nature of infection— Septicaemia, toxsemia, variations in in- 

 fectious processes — Immunity, natural and acquired — The 



