24 
Journal of Agricultural Research 
Vol. I, No. i 
August 21. Is very thin and has a diarrhea, but is feeding well. 
October 15 (eighty-three days after feeding). Chloroformed. In poor flesh, very 
little fat. Cysticerci were found in the panniculus camosus. Forty-two degenerate 
cysts were counted in the diaphragm ; ten degenerate cysts in the wall of the esophagus. 
Several cysts in anterior lobes of lungs, 2 to 3 mm. in diameter; contents caseous. One 
contained a small dead cysticercus, 1 mm. in diameter; rudiment of head present. 
Numerous small degenerate cysts in heart. Numerous cysticerci in muscles of masti¬ 
cation; some living, others degenerate. A few nodules in the wall of the rumen, and 
one in the wall of the fourth stomach, 2 to 4 mm. in diameter, hard, shotlike, with 
thick wall and cheesy contents. No cysticerci were found in these cysts. Nodules 
present on wall of cecum, probably Oesophagostomum . No cysticerci found in these 
nodules. Many degenerate cysts among those present in the musculature in various 
parts of the body. The sizes of 13 live cysts measured in situ were as follows, in milli¬ 
meters: 9 by 3.5, 8 by 3, 7 by 4, 7 by 3, 6 by 3, 5 by 4, 4 by 2.5, 5 by 3, 7 by 4, 8 by 4, 
8 by 3, 6 by 2.5, and 9 by 4. A cyst 5 or 6 mm. in diameter with thick leathery cap¬ 
sule contained a live cysticercus which was active under the microscope. This 
cysticercus was not fully developed, only the blade of the hooks being formed. Other 
cysticerci showed fully developed hooks, and cysticerci from degenerate cysts showed 
in some cases hooks not yet fully formed. 
Lamb No. 2.—July 26. A gravid segment from a tapeworm out of dog No. 6 (a dog 
which had been fed muscle cysts) was given in a drench with water. 
August 7. Dr. Day reported that lambs Nos. 1,2,3, and 5 were more or less sick but 
would probably recover. 
August 17 (twenty-two days after feeding). This animal died, but its death was not 
reported until two days later, when decomposition was so far advanced that Dr. Day 
did not attempt a post-mortem examination. 1 
Lamb No. 3.—July 26. A gravid segment from a tapeworm out of dog No. 6 (a dog 
which had been fed muscle cysts) was given in a drench with water. 
August 7. Dr. Day reported that lambs Nos. 1,2,3, and 5 were more or less sick but 
would probably recover. 
August 18 (twenty-three days after feeding). This animal died. Decomposition was 
far advanced the following day when a post-mortem examination was made, but some 
of the masseter muscle and some of the muscle of a hind leg were obtained. Dr. Day 
reports that cysts in the masseter muscle were quite well formed and contained a tiny 
white spot just visible to the eye. Microscopic examination by Dr. Day showed that 
the head was not well formed, but papillae were evident on the caudal bladder. 
Lamb No. 4.—July 24. A gravid segment (cut in pieces) from dog No. 1 (a dog which 
had been fed muscle cysticerci) was given in a drench with water, 
August 7. In very bad condition; probably will die. 
August 11 (eighteen days after feeding). Dead. 
August 12. An incomplete post-mortem examination was made by Dr. Day. Ad¬ 
vanced decomposition. A number of cysts were obtained from the masseter muscles. 
Lamb No. 5.—July 24 a gravid segment from a tapeworm out of dog No. 3 (a dog 
which had been fed muscle cysticerci) and on July 26 two gravid segments from a tape-, 
worm out of dog No. 6 (a dog which had been fed muscle cysticerci) were given in a 
drench with water, a total of three segments. 
August 7. Dr. Day reported that lambs Nos. 1,2,3, and 5 were more or less sick but 
would probably recover. 
1 In prior publications (Ransom, 1913, p. 78; 1913, p. 31) it was erroneously stated that all of the lambs 
which had been fed eggs of the muscle cyst tapeworm showed tapeworm cysts in the muscles. The con¬ 
dition in lamb No. 2, of course, was not determined, as no autopsy was made on this animal. The state¬ 
ment (Ransom, 1913, p. 31) that the lambs died in 14 to 22 days after feeding is also inaccurate. It should 
be 13 to 23 days. 
