CONTENTS 



CHAPTER I 



IMMUNITY : ITS CAUSE AND ITS EFFECT ON DISEASE 



FACES 



The path of infection — Bacterial poisons — The mode of 

 action of bacterial poisons — Natural immunity — 

 Acquired immunity — Active immunity — Passive im- 

 munity — Antibodies and the substances giving rise to 

 them — The toxin : antitoxin reaction — Standardisation 

 of antitoxins — Ehrlich's side-chain theory — Agglutinins 

 — Production of agglutinins — Precipitins — Multiplicity 

 of amboceptors — Anti- complement and anti- ambo- 

 ceptor — Fixation of the complement — Specificity of 

 hemolysins — Tests for differentiation of the various 

 organisms causing disease : agglutinin test — Precipitin 

 test — Bactericidal and bacteriolytic tests — Hemolytic 

 test — Fixation of the complement test - - 1-28 



CHAPTER II 



PHAGOCYTOSIS 



Phagocytosis — Opsonins — Opsonic index test — Leucocyte 

 extract — Problems and facts of immunity in their 

 bearing upon the treatment of infectious diseases 29—45 



CHAPTER III 



ANAPHYLAXIS 



Anaphylaxis ------ 46-51 



CHAPTER IV 



DISEASES PRODUCED BY BACTERIA WHICH SECRETE TRUE TOXINS 



Tetanus, or lockjaw — Preparation of antitoxin — Standardi- 

 sation of antitoxin — Experimental value of antitoxins — 



vii 



