120 



LECTURES ON IMMUNITY 



stant volumes. After a certain time ( i to 20 hours) a sample 

 of the solution was cooled to o C., the albumen was cen- 

 trifugalised, and the content of nitrogen in the liquid 

 determined according to the method of Kjeldahl. 



In this manner the digestion was followed. Sjoqvist 

 found that the same quantity (<2) is digested if the time 

 (/) of digestion is inversely proportional to the concentra- 

 tion (c) of the pepsin, as is shown by the following figures : 



During the first time there are some deviations. The 

 progress with time is indicated by the following figures 



The calculated figures <2 calc>1 are found from the com- 

 mon formula for the monomolecular reaction, those signed 

 ^.2 from the formula given above for the digestion of 



