PLATE XX. 



77. PROTEUS ZENKERI. 



(PUTREFACTION.) 



X 1500. Photomicrograph by?Wm. Radam. 



78. SPIRILLUM CONCENTRICUM. 



(IN PUTREFYING BLOOD— SHOWING FLAGELI.A.) 



X 2500, Photomicrograph by Wm. Radam. 



79. BACILLUS CUMCULICIDA 

 HAVANIENSIS. 



(FOUND IN YELLOW-FEVER CADAVERS.) 



X 2500. 



Photomicrograph by Wm. Radam. 



80. BACILLUS CAYICIDA (Brieger's). 



(FROM HUMAN F^CES.) 



X 2500. Photomicrograph by Wm. Radam. 



