THE CONSTITUENTS OF DIPHTHERIA TOXIN. 



511 



formation. This proves that in this poison the toxin zone behaved 

 exactly the same in its transformation as it did in the other diph- 

 theria poisons examined. 



I believe it will be seen from my explanations that my mode of 

 procedure in the study of diphtheria poison has been exceedingly 



Phase! 



10 



10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 



Phase n 



10 



10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 



Phase IH 



10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 



Phase IV 



1U 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 |18J) 190 200 



FIG. 7. 



careful, and that the objections raised against my results do not apply. 

 I must therefore continue to maintain my original standpoint, and 

 deem it well therefore to once more define my views concerning the 

 poison of diphtheria. 



