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FORM No. 9. 



Obtained from the air in the veterinary hospital. 



Morphology. A bacillus 3" long and I" broad. It occurs singly. 



Biological Characters. A non-liquefying, faculative anterobic, actively motile- 

 rspore-forming bacillus. In Bouillon it produces turbidity and forms a slight, 

 whitish sediment in the bottom of the tube. On Potato it forms a white, smooth 

 growth. In Gelatine Stick cultures it forms a small cup-shape growth on sur, 

 face. It grows slightly along stick and did not liquefy the gelatine. On Agar 

 Streak it forms a slick white growth over the whole surface of Agar. On Agar 

 Plate white, irregular, finely granular colonies are formed. It grows both on sur- 

 face of Agar and on bottom of plate. The growth at a temperature of 102° F. is 

 slick, white, luxuriant and extends over surface of Agar. On Lactose Litmus 

 Agar Plate it forms pearly white colonies, which produce lactic acid in consider- 

 able quantity. 



FORM No. 10. 



Obtained from the air in the veterinary hospital. 



Morphology. A long slender bacillus with square ends. It occurs united in 

 chains of two or three cells. Length 4", width 1". 



Biological Characters. A liquefying, non-motile, spore-forming, facultative, 

 anaerobic bacillus. In BouiiloD it forms a white sediment on bottom of tube and 

 a white film over surface. On Agar Streak it produces a brownish slick growth 

 with an irregular outline and a white portion on the edge.* On Potato luxuriant 

 white, raised, wrinkled growth appears. In Gelatine Stick culture it rapidly 

 liquefies the gelatine and forms a white scum on the surface. On Agar Plate it 

 develops into white colonies with a smooth outline. They grow both on surface 

 and on the bottom of the plate. The growth at temperature of 102° F. is white 

 and not luxuriant. On Lactose Litmus Agar Plates no change is produced, show- 

 ing that lactic acid is not formed. 



FORM No. 11. 



Obtained from the air in the veterinary hospital. This form is quite abundant. 



Morphology. A short, thick bacillus. It often occurs united in chain of two 

 cells. Length 3", width U°. 



Biological Characters. A liquefying, non-motile, facultative, anaerobic, spore- 

 forming bacillus. In Bouillon it forms a white sediment in bottom of tube and a 



*See Plate. 

 13 



