38 
tile centre and very sharply outlined contour. These forms 
varied from three to five microns. The third form is a wavy 
delicate short mycelium-like thread. Smears from the cul- 
tures as made above showed chiefly a large Gram positive 
rounded end rod but which did not grow on plating out. 
Grew on aerobic media, not found on anaerobic. 
The Gram positive bacterium would not grow beyond the 
fourth generation. It was not identified with any known 
species by the characters manifested, during the short time 
we were able to keep it alive but could be placed in the Hog 
Cholera group. The mycelium was found to be an asper- 
gillus. In regard to the large coccus-like body, little can be 
added to the above description. Further examination did 
not reveal characters permitting* us to place it among the 
protozoa. No evidence of division were seen. The body 
was quite uniform in appearance, varying only in size. What- 
ever this is, it seems to be an organized body. 
Cultures from pus in anterior chamber of the second 
horse showed the palely staining rod, an aspergillus and 
Micrococcus aquatilis. The first was planted on horse serum 
bouillon, but did not grow after the first generation. These 
cultures were made after death, but the cultures made during 
the acute attack, direct from conjunctival sac contained 
such a host of organisms that no judgment could be formed 
of their relative importance. The polar staining rod was 
seen in smears. No large coccus-like bodies were observed 
at any time in the second horse. Fluid taken from the first 
horse's eye at death were sterile. 
These observations are at variance with those of others, 
but such results are not unique in this respect. It seems 
as if the polar staining rod deserves some consideration, and 
we expect to devote some attention to it if another horse 
suffering with recurrent opthalmia come to our notice. The 
large coccus-like bodies are very interesting and may be 
protozoa. The finding of the amoebie in the cases of Pota- 
penke, increases their importance. 
Before, during and after the fourth attack of the first 
horse 20 grains of Quinine Bisulphate were given hypoder- 
mically daily for 20 days. The attack was very mild. Before 
