Ill 



catc that already 0,3 % egg albumen is able to decrease 

 the action of the lysin in the proportion 2,8:1,8, viz. 

 by about 35 %. The corresponding ciphers in the next 

 column show that 0,75 % albumen decreases the action 

 of the lysin to about 64 %. The double amount of 

 albumen has almost the same power of action. The 

 experiments showed this action to be smaller, which with- 

 out doubt arose from errors of experiment. And 

 2,5% albumen decreases in the proportion 4,7 : 1,8, viz. 

 by 62 o/ . 



The facts here brought forwards are quite charac- 

 teristic. The action of albumen is not perceptible in 

 the concentration 0,04 %, it then increases rapidly 

 with the concentration, so that it, when this is 0,3 % 

 amounts to 35 %, and when it is 0,75 % to 64 %, and 

 after that it remains nearly constant. When the per- 

 centage of albumen rises from 0,3 to 0,75 the increase 

 in the action is almost proportionate to the amount ot 

 albumen (with allowance for errors of experiment). 



The way in which the figures follow each other in 

 these series is also very remarkable. In the first series, 

 in which pure tetanolysin was added, the values of ha> 

 molysis (apart from the first) follow approximately the 

 rule that haemolysis is in proportion to the square of 

 the amount of lysin added. But in the fourth series 

 (12.5 A) on the other hand, proportionality is nearly 

 maintained betwen the amount of toxin and haemolysis, 

 and in the last two series the increase of haemolysis is 

 less than proportionate to the amount of toxin. 



One might be tempted to suppose, that this arose 

 from the greatest amounts of albumen accompanying 

 the greatest amounts of toxin in the experiments. But 

 we have seen above, that beyond a certain limit which 

 has been exceeded in this case (series 50 A), the in- 



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