I9I2] 



Frank R. Eider and William J. Gies 



543- 



TABLE I (continued) 

 Experiment 5. The strength of the stock Solution of pepsin was 0.5^ (o.r 

 gram of product in 20 c.c. of water) ; the Proportion of pepsin product in the 

 presence of the collagen was 0.000,6^. 



Experiment 6. The strength of the stock Solution of pepsin was i^ (o.ir 

 gram of product in 10 c.c. of water) ; the proportion of pepsin product in the 

 presence of the collagen was 0.001,2^. 



Experiment 7. The strength of the stock Solution of pepsin was 0.5^ (o.l: 

 gram of product in 20 c.c. of water) ; the proportion of pepsin product in the 

 presence of the collagen was 0.000,6^. A shortage of material necessitated ther 

 use of half portions of collagen (i gram). 



o 

 0.3 



0.3* 



34 

 68 



34 



34 



3400 



*The Solution of pepsin added to the third mixture was taken from a portion of the stock Solution wbich, 

 had been thoroughly boiled and then cooled to room temperature. 



TABLE 2 



Second series. Data showing the influence of trypsin on the ahsorption and' 

 retention of water by fibrin particles in dilute sodiunt carbonate Solution con- 

 taining sodium chlorid. 



General data. The total volume of liquid in each test was 250 c.c. One 

 fibrin preparation was employed throughout the series and the enryme product: 

 was the same in each test ("Trypsin, Fairchild: 204"). 



Experiment 8. Weight of fibrin in each mixture: 6' grams. Concentrations 

 of sodium carbonate, 0.25^. Strength of the stock Solution of trypsin, 2^ (o.i 

 gram of product in 5 c.c. of water). 



