PLATE XIX 



f/g. r. Diphtheria Bacillus (typical form}. 



* 





\ 



'"'... ... <. 



" -; '- 



2. Diphtheria Bacillus (atypical). 



Fig. 8. Diphtheria Bacillus (atypical). Fig. 4. Hoffmann's Pseudo-Diphtheria Bacillus. 



MEDICAL ANNUAL, 1899. 



