354 



BACTERIOLOGY. 



the deeper parts of the needle-track is much more pro- 

 nounced than is the case with the " comma bacillus." 



Kg. 75. 



a h c d 



stab culture of vijbrio Melchnikovi in gelatin, at 18° to 20° C. 

 o. After twenty-four hours, b. After forty-eight hours, c. After seventy- 

 two hours, d. After ninety-six hours. 



Its growth on agar- agar is rapid, and after twenty- 

 four to forty-eight hours there appears a grayish deposit 

 having a tendency to take on a yellowish tone. 



On potato at 37° C. its growth is seen as a moist, 

 coffee-colored patch surrounded by a much paler zone. 

 The whole growth is so smooth and glistening that it 

 has almost the appearance of being varnished. 



In bouillon it quickly causes opacity, with the ulti- 



