Plate III. 



-. r-:':M->^y. 



1. -' .***^\ < U.'. »• \ 



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• • t 



» % 



v^ 





e^ '9^ 



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d^ 



PHOTOGENIC BACTERIA. 

 {Photohacterium Phosphorescens.) 



Growth on Solid Media. 



Fig. 1. Fresh culture, ordinary gela- 

 tine. 



,, 2. Three days' growth. 



,, 3. One day's growth, salted 

 gelatine. 



,, 4. Old culture, salted gelatine. 



Growth in Fluid Media. 



Fig. 5. Peptone sea-water. 

 ,, 6. Peptone sea- water, showing 

 Flagellum. 



[Taken from Paper entitled "Photogenic Bacteria," by J. E. Barnard. 

 Transactions of the Jenner Institute of Preventive Medicine, 2nd Series, p. 112.] 



