MUCOSUS CAPSULATUS GROUP 169 



encountered in abscesses, pyelonephritis, endometritis, and 

 peritonitis. Meat poisonings have been traced to it. Its 

 toxin is very poisonous. It is frequently a harmless inhabi- 

 tant of the intestinal tract. It is quite resistant, and to kill 

 it requires the most approved disinfectants acting over a 

 considerable time. 



Bacillus Pyocyaneus. Bacillw pyocyaneus is the organism 

 of green pus. This bacterium is widely distributed on the 

 skin and mucous membranes of man and animals. Its 

 disease-producing powers are low and considerable reduction 



FIG. 53. Bacillus pyocyaneus. (From Kolle and Wassermann.) 



of resistance on the part of the host may be assumed when 

 infection occurs. It may enter by cracks or wounds, and not 

 infrequently is associated with other bacteria, notably the 

 pus cocci. The pyocyaneus bacillus is an actively motile, 

 straight, or slightly curved, non-spore-forming rod measuring 

 from 25000 inch to %QQQ inch long and 75 ooo inch wide. 

 Its motility is due to one flagellum placed at one end. 



It grows readily at room or body temperature, best in 

 the presence of oxygen. On agar jelly it forms pigments 

 which color the growth itself and the medium upon which 

 it is living. These pigments are of two kinds, a green one 



