LIST OF ILLUSTRATIONS 



FIG. PAGE 



1 . Apparatus for Filtration through Porcelain 43 



2. The Rosenau or Reichel Syringe for Injecting Toxin-antitoxin Mixtures. . . 47 



3. Wooden Box for Holding Rabbits 79 



4. Method of Obtaining Blood from the Rabbit's Ear 80 



5. Method of Complete Bleeding from the Femoral Vessels of the Rabbit. ... 81 



6. Collection of Serum in a Flask 82 



7. Method of Drawing Up Measured Volumes of Fluid into a Graduated Pipette 83 



8. The Wright Tube for Obtaining Small Quantities of Blood Serum 85 



9. Coiled Pipette for Taking Up Small Quantities of Fluids 85 



10. Microscopic Drawing of Bacterial Agglutination 84 



11. The Nipple Pipette : 96 



12. Hemolysis in the Test Tube 118 



13. Quantitative Relations of Amboceptor and Complement in Hemolysis 119 



14. Method of Obtaining Blood from Guinea-pig 128 



15. Stages of Lysis in Cholera Vibrios 144 



16. Microscopic Drawing of Phagocytosis 154 



17. Microscopic Drawing of Guinea-pig Lung in Anaphylactic Shock 214 



1 8. Blood-pressure Tracing from Dog in Anaphylactic Shock 216 



PLATES 



PLATE I. Positive Schick Reaction of Moderate Severity Seventy-two Hours 

 After the Intracutaneous Injection of One-fortieth the Minimal 

 Lethal Dose of Diphtheria Toxin. Patient's Blood Serum Was 



Found to Contain No Antitoxin 54 



PLATE II. Colored Drawing of Guinea-pig Lungs in Anaphylactic Shock 212 



