12 



111 fowl 28, a large part of the solid cheesy matter in the inira-orbital cavity be- 

 came softened and semi-liquid. The surrounding membrane had changed in- 

 to a red granulation tumour, which was full of vessels and projected into the 

 cavity. It was lumpy, very soft, and contained in its depths an epithelial layer 

 which grew toward the outside. The conchae of the nose may have been alto- 

 gether absorbed under pressure of the solid cheesy mass. 



The inflamed conjunctiva behaved like tlie mucous membrane of the nose, 

 except that pseudo-membranes were more frequently formed on them. In 

 the submucous tissue of the eve-lids, which had been serinus'v infiltrated at 



Kiu'. ](!. — Fuwl 40 ; tluuat and Ijottoui of the niontli with 

 false ineiiibranes (111), 14 days after inoculation with 

 B. i)yoeyaneiis. 



the beginning, small, grey bodies of matter were found; these grew large, united 

 and finally became compact, oheese-like yellow-white tumors. The surround- 

 ing tissue was sharply separated from these by a greyish-brown, smooth, pyo- 

 genous membrane, 1-3 m.m. thick. Usually the pseudo-membranes of the 

 conjunctiva whidi at first were easily detached, were later firmly fastened to 

 the cheesy massses in the depths of the lids. The firm, cheese-like masses in 

 the lids showed no inclination to become soft, or to perforate the skin, like 

 those formed in other places. On the inner and exterior sides of the lid of 

 infected fowl 35, pseudo-membranes were formed, which had grown fast to one 

 another. Similarly, the whole cornea of fowl 11 and inoculated pigeon 16 were 



