254 VENOMOUS SNAKES AND THE PHENOMENA OF THEIR VENOMS 



Table 30 and figures 5 and 6 show one of Myers's experiments with the 

 same venom used in the first series, but kept at 35° C. for 12 hours. 



Table 30. 



Exposed venom alone 



Exposed venom +0.1 c.c. serum 

 Exposed venom +0.2 

 Exposed venom + 0.4 



M. h. d. still 

 present. 



250 

 166.6 

 100 

 40 



Difference. 



8-3 

 6.6 



3-0 



Combining 

 equivalents. 



10 

 10 

 20 



M. h. d. 

 per equivalent. 



8-3 

 6.6 



3-0 



While inclining very markedly to the toxoid theory of Ehrlich, Myers has, 

 nevertheless, pointed out the possible reversibility of the reaction between 

 toxin and antitoxin. 



U- Somewhat later the relation between the toxic and hsemolytic powers and 

 the corresponding antitoxins of cobra venom was investigated by Flexner 



Fig. s. 



0.175 0.2 0.225 



Fig. 7. 



