Ill 



or ammonia. The most concentrated solutions (I) con- 

 tain 87,5% serum, the following (II) 37,5% and the 

 weakest (III) 15%. Much weaker solutions have been 

 examined but they had no effect. 



It appears that the action of serum B is much 

 stronger than that of serum A; and the action upon 

 sodium hydrate is stronger than the action upon am- 

 monia. In the case of solution A III, the decrease is 

 very insignificant, as regards ammonia hardly recognis- 

 able, and as regards sodium hydrate about 10% (when 

 the greatest amounts are added). For the solution A II, 

 the decrease in the strongest concentrations amounts 

 to 25 % for NaOH, to 15 % for NH 3 , in the weaker (0.5 

 cc.) to 10 %. For NH S it is not perceptible. The strong- 

 est solutions of A I decrease by about 40 % for NaOH 

 and 25 % for NH 3 . The strongest solutions of B III 

 decrease by about 25 %, the strongest of B II by 50 %,, 

 and the strongest of B I up to 60 %. The strongest 

 solutions correspond after having been mixed with 

 blood to 1,4, 3,4 and 8 % of the whole fluid. The ac- 

 tion is thus comparatively slight. 



This is. in a still higher degree, the case with eyy 

 albumen. For the following experiments, as for the 

 earlier ones, y 40 n solutions of the bases have been 



44 



