Oct. io, 1913 
Cysticercus Ovis 
25 
August 12 (ten days after feeding). Dead. Post-mortem examination by Dr. Day the 
following morning showed a large number of cystic parasites in the masseter muscles, 
heart, tongue, and diaphragm. There were also numerous cystic parasites in the 
skeletal muscles and a few hemorrhagic spots. 
Lamb No. 6.—July 24, four segments from tapeworms out of dogs Nos. 1 and 3 (dogs 
which had been fed muscle cysticerci), two segments from each dog, and July 26 six 
segments from tapeworms out of dog No. 6 (a dog which had been fed muscle cysticerci) 
were given in a drench with water, a total of ten segments. 
August 5. Appears ill and out of condition. 
August 6 (thirteen days after feeding). Dead. Post-mortem by Dr. Day showed 
that the parasites had already migrated to the muscles, and were found as very minute 
cysts, more numerous in the heart and masseter muscles than elsewhere. There vrere 
about 25 c. c. of fluid in the pericardium. The heart was very thickly studded with 
minute cysts. There were about 350c. c. of fluid in the peritoneal cavity. A careful 
examination of the fluid was made, but no parasites were found. The liver appeared 
normal. 
Lamb No. 7.—July 26. A gravid segment from a tapeworm out of dog No. 2 (a dog 
which had been fed Cysticercus tenuicollis from the peritoneum of sheep) was given 
in a drench with water. 
August 21. Reported by Dr. Day as doing well. 
October 18 (eighty-four days after feeding). Chloroformed. Animal in poor flesh. 
Twelve to fifteen cysts on omentum and mesenteries, two of which are alive, the others 
degenerate. One degenerate cyst under peritoneum in pelvic cavity. Degenerate 
cysts vary in size up to a maximum of 20 mm. in diameter. Contain dead cysticerci, 
a small amount of colorless serous fluid and flocculent d£bris or a greenish, caseous 
material. The live cysticerci measure 8 by 15 mm., and show the usual macroscopic 
characters of Cysticercus tenuicollis. A few degenerate cysticerci of small size on the 
surface of the liver. No cysticerci in the muscles, lungs, or other organs, except as 
noted above. Oesophagostomum nodules on the intestine. 
Lamb No. 8.—July 26. Ten gravid segments from a tapeworm out of dog No. 2 
(a dog which had been fed Cysticercus tenuicollis from the peritoneum of sheep) given 
in a drench with water. 
August 21. Reported by Dr. Day as doing well. 
October 17 (eighty-three days after feeding). Chloroformed. Animal in poor flesh. 
A considerable number of small degenerate cysticerci on surface and in depths of 
liver. About 25 degenerate cysts on omentum and mesenteries. One live cysti¬ 
cercus on omentum about 12 mm. in diameter shows the usual macroscopic char¬ 
acters of Cysticercus tenuicollis. One degenerate cyst on tendinous portion of diaphragm 
(abdominal surface). Small nodules in lungs, one of which contained a young dead 
cysticercus showing under the microscope transverse ridges on the cuticle of the 
caudal bladder. Synthetocaulus nodules also present on the lungs. Several pockets 
in the lungs with fibrous walls containing greenish pus. The contents of these pockets 
were examined, but no cysticerci were found. Heart and muscles were free from 
parasites. A cyst from the omentum, 8 mm. in diameter, with thick fibrous wall con¬ 
tains a dead cysticercus with evaginated head and bladder about 3 mm. in diameter. 
Two cysts from the omentum or mesentery, 5 and 6 mm. in diameter, respectively, 
contain each a dead cysticercus and a small amount of colorless serous fluid and 
flocculent debris. The other degenerate cysts are similar, except the contents in some 
are greenish, caseous. Their size varies from 2.5 to 10 mm,, and all have thickened 
walls to % mm. thick. The degenerate cyst from the tendinous portion of the dia¬ 
phragm is flattened, 8 mm. in diameter. Its wall is thin, and it contains a dead 
Cysticercus tenuicollis and a small amount of serous fluid and white flocculent matter. 
