254 



INACTIVATION '^T- TRYPSIN, n 



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 Units of tpypsir added. 



Fig. 2. The influence of the total amount of tr,\ ^ iiu on the inactivation caused 

 by 5 units inhibitor. Increased amounts of trypsin w^re added to series of tubes 

 each containing 25 cc. gelatin solution, and 5 units iihibitor. Duplicate series 

 run at the same time and under the same conditions, but without inhibitor. 



2 4 6 8 



Units of trypsin ack 



Fig. 3. The influence of the total amount of trypsin prt. .nt on the percentage 

 retardation caused by 5 units of inhibitor. 



