152 Manual of Veterinary Microbiology. 



special polymorphic microbe, generally assuming the 

 form of a short curved bacillus, occasionally that of 

 a micrococcus or even of a spirillum. 



The germ of blue pus is very easily cultivated ; it 

 communicates to the nutritive media a green color; 

 by the action of chloroform it is possible to isolate 

 form its cultures pyoeyanine which is the blue color- 

 ing matter characteristic of the germ. The green 

 color of the cultures results from the fact that the 

 nutritive media have originally a yellowish color. 



When iujected to animals it does not cause suppu- 

 ration ; but its cultures are, nevertheless, pathogenic 

 for the rabbit to which it gives a special disease, the 

 pyocyanic disease, acute or chronic according to the 

 dose employed, and characterized by paralysis, fever, 

 albuminuria, and diarrhoea. 



The microbe of blue pus has been encountered in 

 our animals only by M. Cadeac, in the spleen and 

 lymph glands of a dog killed in the last stage of 

 lymphadenoma. The author tested its identity by 

 culture methods and inoculations but did not succeed 

 in transmitting the disease to the dog ; he thinks that 

 the abnormal debility of the lymphadenomic subject 

 facilitated the installation of the germ of the pyocy- 

 anic disease. 



Py(Emia. 



The knowleage which we now possess of recep- 

 tivity and the conditions which determine it, as well 

 as of the situation of the pyogenic germs in the 

 meshes of the connective tissue in cases of phlegmon, 

 justifies us in asserting that the passage of these 

 germs into the circulatory fluids is probably a com- 

 mon but generally inoffensive occurrence. If the 



