CONTENTS xiii 



CHAPTER XXVII. 



Receptors of the First Order. 

 Antitoxins— Antienzymes 257 



CHAPTER XXVIII. 



Receptors of the Second Order. 



Agglutinins 261 



Precipitins 264 



CHAPTER XXIX. 



Receptors of the Third Order. 



Cytolysins 267 



Amboceptors 269 



Complements 270 



Antisnake Venoms 272 



Failure of Cytol}1;ic Serums 272 



Complement-fixation Test 273 



Bacteriophage 278 



CHAPTER XXX. 



Phagocytosis— Opsonins. 



Bacterial Vaccines 281 



Lipovaccines 283 



Aggressins 287 



CHAPTER XXXI. 



Anaphylaxis 288 



A Tabulation of Antigens and Antibodies as at Present Recognized 293 

 Summary of Immunity as Applied to Protection from Disease . 294 



CHAPTER XXXII. 



A Brief History of Bacteriology Up to 1881. 



Spontaneous Generation 296 



Causation of Disease 304 



Putrefaction and Fermentation 310 



Study of Forms 312 



List of Laboratory Exercises Given in Connection with the Class 



Work Included in this Text-book 316 



