1 50 IMMUNO-CATALYSIS 



The two test antigens containing the cellobioside and gentiobioside 

 (terminal hexose, /?-glucose) reacted only in )8-antisemm, and finally 

 the lactoside test antigen (terminal hexose, /^-galactose) reacted only 

 in )8-galactoside antiserum. 



CH2OH 



CH2OH 



0— J 



OC6H4N=N— Protein 



H 

 CH2OH 



OH H OH 



p-Aminophenol-j3-maltoside Antigen 



OH CH2OH 



p-Aminophenol-j3-cellobioside Antigen 



J_OC6H4N=N--Protein 



CH2OH 

 OH J 8^ 



OH CH2OH 



p-Aminophenol-/?-Iactoside Antigen 



O — CH 



O*^ lJ_OC6H4N=N--Protein 



OH LXOC6H4N=N— Protein 



p-Aminophenol-j3-gentiobioside Antigen 



