628 Vibrio Schuylkiliensis 



duced by subcutaneous inoculation, the autopsy shows a 

 bloody edema and a superficial necrosis of the tissues. 



The organisms can be found in the blood and all the 

 organs of pigeons and young' chickens, in such large numbers 

 that Pfeiffer has called the disease Vibrionensepticcemia. In 

 the intestines very few alterations are noticeable, and very 

 few spirilla can be found. 



Immunity. Gamaleia has shown that pigeons and 

 guinea-pigs can be made immune by inoculating them with 

 cultures sterilized for a time at a temperature of 100 C. 

 Mice and rabbits are immune, except to very large doses. 



VIBRIO SCHUYLKILIENSIS (ABBOTT). 



Morphology. This micro-organism, closely resembling 

 the cholera spirillum, was found by Abbott * in sewage- 

 polluted water from the Schuylkill River at Philadelphia. 



Cultivation. Colonies. The colonies developed upon 

 gelatin plates very closely resemble those of the Spirillum 

 metschnikovi. 



Gelatin Punctures. In gelatin puncture cultures the 

 appearance is exactly like the true cholera spirillum. At 

 times the growth is a little more rapid. 



Agar-agar. The growth on agar is luxuriant, and gives 

 off a pronounced odor of indol. 



Blood-serum. Loffler's blood-serum is apparently not 

 a perfectly adapted medium, but upon it the organisms 

 grow, with resulting liquefaction. 



Potato. Upon potato, at the point of inoculation a thin, 

 glazed, more or less dirty yellow growth, shading to brown 

 and sometimes surrounded by a flat, dry, lusterless zone, is 

 formed. 



Milk. In litmus milk a reddish tinge develops after 

 the milk is kept twenty-four hours at body-temperature. 

 After forty-eight hours this color is increased and the milk 

 coagulates. 



Metabolic Products. In peptone solutions indol is 

 easily detected. No gas is produced in glucose-containing 

 culture media. Acids and coagulating enzymes are formed. 

 The organism is a facultative anaerobe. 



* "Journal of Experimental Medicine," vol. I, No. 3, July, 1896, 

 p. 419. 



