Ill 



were alone in the solution. The first value in the D 

 series is not greater than in the case of the half concen- 

 tration of sodium hydrate or tetanolysin by themselves or, 

 in other words, the action is just as great as if only one 

 component was present. This low value may perhaps 

 depend upon an accident. A lysin seems not to dis- 

 solve the blood corpuscles, which are combined with 

 another lysin. 



The hu?molytic action of bases is in a very percept- 

 ible manner decreased, when normal serum is added. 

 The action of various kinds of serum seems to differ. 

 Two different kinds have been used, one marked '-egout- 

 teur ", the other was prepared just before the experi- 

 ments. The former serum is in the table designated A, 

 the latter B. The experiments are carried out with so- 

 lutions which are J /4o n m the case of sodium hydrate 



