22 
Journal of Agricultural Research 
Vol. I. No. i 
from the ileocecal valve, and the posterior ends of the worms extended to within 40 
cm. of the ileocecal valve. 
Dog No. 3.—A young black-and-white female. Fed muscle cysticerci from sheep. 
March 29. Received one-half ounce of castor oil at 5 p. m. March 30. Feces were 
examined with negative results. , 
April 5. Fed 1 cyst from myocardium. 
April 6. Fed 3 cysts from myocardium. 
April 10. Fed 3 cysts from myocardium. 
April 11. Fed 6 cysts from myocardium. 
April 13. Fed 1 cyst from myocardium. 
April 29. Fed 1 cyst from myocardium. 
May 2. Fed 1 cyst from myocardium. 
May 21. Fed 1 cyst from myocardium. 
May 23. Fed 1 cyst from myocardium. 
May 24. Fed 3 cysts from myocardium. 
Total... 21 cysts. 
June 11. Feces examined but no eggs found. 
No segments or eggs have been found (prior to July 22). 
July 22. Chloroformed. Four tapeworms attached 25 to 35 cm. from the ileocecal 
valve, one of them with gravid segments, about 45 cm. long when extended, other 
three not over 2 to 5 cm. long. Three very short tapeworms in cecum. In large 
intestine a string of about 10 gravid segments. Total number of tapeworms, seven. 
Three individuals of Toxascaris in jejunum. 
Dog No. 4.—A young red male. Fed muscle cysticerci from sheep. March 29. 
Received one-half ounce of castor oil at 5 p. m. March 30. Feces were examined 
and Toxascaris eggs found. 
April 18. Fed 1 cyst from myocardium of sheep. 
April 19. Fed 1 cyst from cheek muscle of sheep. 
April 23. Fed 16 cysts—3 from myocardium and 13 from muscles of sheep. 
Hooks were well developed. 
April 24. Fed 1 cyst from myocardium of sheep. 
May 2. Fed 1 cyst from myocardium of sheep. 
May 15. Fed 1 cyst from myocardium of sheep. 
May 21. Fed 1 cyst from myocardium of sheep. 
May 24. Fed 2 cysts from muscles of sheep. 
Total.... 24 cysts. 
June 11. Eggs of Toxascaris , but no tapeworm eggs found. 
June 27. Three broken tapeworm segments found in feces. 
July 24. Chloroformed. Two individuals of Toxascaris in upper part of jejunum. 
Sixteen or seventeen tapeworms extending down into lower part of colon. None 
attached more than 4 cm. above ileocecal valve. One attached in cecum. None 
with gravid segments. Length, 20 to 50 cm. 
Dog No. 5.—A medium-sized brindled male. Fed muscle cysticerci from sheep. 
March 29. Received one-half ounce of castor oil at 5 p. m. March 30. Feces were 
examined with negative results. 
April 23. Fed 20 cysts from muscles of sheep. Hooks were well developed. 
April 24. Fed 1 cyst from myocardium. 
May 2. Fed 1 cyst from myocardium. 
May 15. Fed 1 cyst from myocardium. 
May 21. Fed 1 cyst from myocardium. 
May 24. Fed 2 cysts from muscles of sheep. 
Total.. 26 cysts. 
