Green - Complement 

 Purple <= Amboceptor 

 Red = Haemolysis 





/unit of Amboceptor 

 used in esc/7 w/mvar/ous 

 fractions or 3 comp/ement 

 unit 



FIG. 13. Diagrams showing relative proportions of reagents in hemolysis. The 

 group of four columns shows the reduction possible in amounts of_ complement with 

 increasing amounts of hemolytic amboceptor, in the production of complete hemol- 

 ysis. The second and third parts of the figure show the curve of reduction in 

 percentage, or degree, of hemolysis following reduction in amount of comple- 

 ment in the presence of constant quantities of amboceptor. From Noguchi, Serum 

 Diagnosis of Syphilis. 



