CONJUNCTIVA IN HEALTH AND DISEASE 145 
A pure case of pneumococcus ophthalmia was not met with ; on the one 
occasion on which it occurred it was complicating cicatricial trachoma, and was associated 
with B. lacunatus (Eyre). Inoculation of a pure culture into a mouse showed that 
it had lost its virulence. 
Two cases of epithelial- xerosis of the conjunctiva, one associated with night 
blindness and no evident disease of the palpebral conjunctiva, the other associated 
with granular lids, were investigated. The white flakes removed from the conjunctiva 
practically consisted of the xerosis bacillus. 
T 
