177 



DESCRlPTIOy OF FORMS OF BACTERIA OBTAINED FROM THE AIR IN j^TABLES. 



FORM No. 1. 



Obtained from the air of the stable in the horse barn at Purdue. 



Morphology, a diplococcus 1 to 1.5" in diameter. Sometimes three or four arie 

 joined together. 



Biological Characters. An arobic, liquefying motile diplococcus. It grows in 

 various media at room temperature. In Bouillon it produces turbidity and a white 

 sediment is formed in bottom of the tube. In Gelatine Stick culture, growth oc- 

 curs only at the surface; is not luxuriant, of a whitish color; producing a lique- 

 faction which is covered with a white film. It grows at a temperature of 102° F. 

 producing a whitish though not luxuriant growth. On Potato it gives a luxuriant 

 reddish growth with a white growth intermingled. On Agar Plate the colonies 



