Studies in Forage Poisoning V. 



99 



FIG. 8. 



Organism (designated c-91) isolated from caecum of experimental 

 horse Xo. 91 fatally infected by drinking the oat hay water. Hignly magni- 

 fied. From a drawing. 



FIG. 9. 



Colonies of organism c-91 in gelatin. Showing liquefied area around each. 

 Oc. 4x, Obj. 16 mm., Spencer. 



