100 



Bulletin No. 207. 



FIG. 10. 



Guinea pig which received by the mouth 0.2 cc. of broth culture of 

 c-91 at 11 a. m., February 14, 1917; photograph taken on the 15th; dead 

 7 a. m., February 16th. 



FIG. 11. 



Experimental horse No. 94, showing- mucous discharge from nostrils. 

 Death resulted from fetding- 4 cc. of unaltered broth culture of an 

 anaerobic organism (c-91) isolated from caecum of horse No. 91. 



