884 
CARL W. GAY 
the lung, diaphragm and the liver. The abscess was limited 
posteriorly by the capsule of the liver, anteriorly by the dia¬ 
phragm. Toward the inner margin of the right lung was a direct 
communication with a bronchus. Tubes of bouillon and agar 
were inoculated with the pus contained in this abscess and a 
streptococcus only isolated from these cultures. 
Case XII .—Clinic No. 2037, October 31, 1899. Patient, a 
black horse, weight about 1000 lbs., 6 years old, was brought 
to the clinic on account of his very poor condition. He was cas¬ 
trated when three years old and last April there appeared a 
swelling on right side of the sheath which broke and ran for 
about six days and then healed. x\bout two weeks later it 
broke on the other side and has been discharging ever since. 
Animal stretches to urinate. A probe can be passed up the 
fistulous opening for at least ten inches and this is found to 
communicate inside with a lobulated tumor much larger and 
extending; toward the external angle of the ilium. 
These tumors could be located per rectum. The horse was 
put on a course of K. I., 3 i once (or twice) daily, and discon¬ 
tinued at intervals as bad effects were noticed. This treatment 
was continued from Nov. 1 to Jan. 22, when operation was re¬ 
sorted to. There was some diminution in size and softening of 
the tumors noticeable at this time. Animal was placed on the 
table, ansesthetized and the highest tumor on the right side 
opened by an incision through the abdominal wall about two 
inches anterior to the external angle of the ilium. A quantity 
of rich yellow pus was discharged. Tubes of bouillon and agar 
were inoculated from this pus and a yellow micrococcus isolated* 
Then a tumor on the floor of the pelvis was opened through the 
median line, but no pus discovered. Still another was opened 
by cutting through the flank and working up to it. This also 
contained no pus. These wounds were dressed by irrigating 
with sublimate solution till Feb. 25, when the horse was again 
subjected to operation. A tumor on the left side was reached 
through the inguinal ring, but it contained no pus. Horse was 
then rolled over on its right side, and a tumor not reached here¬ 
tofore was opened and a large quantity of pus removed. This 
pus was of a very different character from that taken from the 
first abscess on this side, being creamy and not so yellow colored 
as the first. From cultures of this pus a streptococcus was 
isolated. Cultures made from the wound where the first abscess 
was opened contained in addition to the yellow micrococcus of 
the original pus, a streptococcus and white micrococcus. Cul- 
