64 



Chittenden and Stewart — Influence of several new 



after which further proteolytic action was stopped by heating the 

 mixtures to boiling. The undissolved residues were then collected 

 on dried, weighed filtei's, washed thoroughly with boiling water, and 

 finally dried at 110° C. until of constant weight. The amount of 

 fibrin dissolved is taken as a measure of proteolytic action. 



Following are the results obtained with the various substances 

 tested : 



Fer cent, of 

 Antipyrin. 







0-2 



0-5 



10 





 0-5 

 30 

 5-0 



Per cent, of 

 Antlfebrln. 







0-1 



0-2 



0-5 



1-5 



Antipyrin. 



Urethan. 



Per cent, of 

 Paraldetiyde. 







0-05 



0-10 



0-30 



1-00 



2-00 



