PLATE 51. 



Vibrio cholerae. (Koch.) Buchner. (Comma Bacillus.) 



I. Pure culture in bouillon, twenty-four hours at 37°. 

 Stained with fuchsin. X 1000. 



II. Pure culture on agar, twenty-four hours. X 1000. 

 Flagella staining according to Loffier. 



III. Pure culture on gelatin, forty-eight hours. Very 

 fresh from water. (Copied from Frankel and Pfeiffer, 

 Fig. 94.) 



IV. Pure culture on agar, four weeks' old. Involution 

 forms, stained with fuchsin. 



V. Vibrio Metschnikovii Gamaleia. Smear prepa- 

 ration from pigeon's blood. (Copied after Frankel and 

 Pfeiffer, Fig. 102.) 



VI. Vibrio Proteus Buchner. Pure culture in bouil- 

 lon, twenty-four hours. Stained with fuchsin. 



