+ 



+ 



+ 



A B 



Fig. 1 Fig. 2 



Fig. 1. Electrophoretic patterns^- of trypsin digests of reduced, alkylated lysozyme: (A), 



1-5 hours, pH 6-5 pyridine-acetate buffer, 35 V/cm.; (B), 2-5 hours, same conditions. 

 Fig. 2. Electrophoretic patterns^- of subtilisin digest of native ribonuclease.^^ Conditions 



as in Fig. \A. 



