PLATE 19. 



'' y- 



„<. 





K 



^^-^ <J 



JJncil.l)i.'i dvjilithe.ria'. 



Film preparaLiun from serum culture^ 24 hours at 37 C. 



X 1000. 



BacillnH van Jlt'fiaonn. 

 Film preparation from serum culture, 4S hours at 37' C. Roux's stain. 



[To jticu page 28S- 



