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 I 



10 



5- 



2 5 - 



0. 



10 20 30 40 50 60 70 



90 100 liO 120 130 140 150 100 170 l&O 190 200 



Phase II 



10 



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



Phase III 



5- 







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



Phase IT 



10 



V 



5- 



9.5. 







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



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. 



