12 CONtENTS 



CHAPTER V PAGE 



Chemistry of the Animal Parasites 134 



Protozoa 135 



Cestodes 137 



Nematodes 140 



CHAPTER VI 



Phytotoxins and Zootoxins 144 



Phytotoxins 144 



Tlie Toxin Causing Hay-fever 147 



Zootoxins 148 



Snake Venoms 148 



Scorpion Poison 157 



Spider Poison 158 



Centipedes 159 



Bee Poison 160 



Poisons of Dermal Glands of Toads and Salamanders 161 



Poisonous Fish 162 



Eel Serum 164 



CHAPTER VII 



Chemistry of the Immunity Reactions — Antigens, Specificity, Anti- 

 toxins, Agglutinins, Precipitins, Anaphylaxis or Allergy, Ab- 



derhalden Reaction, Opsonins, and Related Subjects .... 165 



Antigens 166 



Non-Protein Antigens 167 



Specificity of Immune Reactions 171 



Toxins and Antitoxins 177 



Chemical Nature of Antitoxins 180 



Agglutinins and Agglutination 183 



Precipitins 189 



Anaphylaxis or Allergy 193 



The Abderhalden Reaction 204 



Opsonins 207 



Tlie Meiostagtiiin Reaction 208 



The Epiphanin Reaction 209 



CHAPTER VIII 



Chemistry of the Immunity Reactions (Continued) — Bacteriolysis, 



Hemolysis, Complement Fixation, and Serum Cytotoxins . . 210 



Scrum Bacteriolysis 210 



Cytotoxins 214 



Hemolysis or Erythrocytolysis 215 



Hemolysis liy Known Chemical and Physical Agencies 215 



Hemolysis by Serum 218 



Hemolysis by ]5acteria 224 



Hemolysis by Vegetable Poisons ', 225 



Hemolysis 1)y Venoms 228 



Hemolysis in Disease 229 



Complement Fixation and Wassermann Reactions 234 



Cytolysis in General 238 



CHAPTER IX 



Chemical Means of Defense Against Non-Antigenic Poisons .... 243 



Inorganic Poisons 246 



Organic Poisons 248 



