164 
Journal of Agricultural Research 
Vol. XXI, No. • 
Dog 389; 0.3 m. p. k.; 25 hookworms first day; p. m., 8 whipworms; 
100 per cent vs. hookworms, o per cent vs. whipworms. 
Dog 390; 0.3 m. p. k.; no worms in 6 days; p. m., 50 whipworms, 10 
Dipylidium sp.; o per cent vs. whipworms and Dipylidium sp. 
Dog 392; 0.3 m. p. k.; 4 hookworms first day; p. m., 1 whipworm, 
1 Dipylidium sp.; 100 per cent vs. hookworms, o per cent vs. whipworms 
and Dipylidium sp. 
Dog 393; 0.3 m. p. k.; no worms in 4 days; p. m., scores of whip¬ 
worms in cecum and upper colon, 45 Diplyidium sp.; o per cent vs. 
whipworms and Dipylidium sp. 
Dog 394 J 0.3 m - P- k.; 1 hookworm and 1 whipworm first day; p. m., 
22 whipworms; 100 per cent vs. hookworms, 4 per cent vs. whipworms. 
Dog 395; 1 m. p. k.; 16 whipworms first day; p. m., 1 whipworm; 94 
per cent vs. whipworms. 
Dog 396;'0.2 m. p. k.; no worms in 4 days; p. m., no worms; no 
conclusions. 
Dog 397; 0.2 m. p. k.; 1 ascarid first day; p. m., 90 Dipylidium sp.; 
100 per cent vs. ascarids, o per cent vs. Dipylidium sp. 
Dog 398; o. 1 m. p. k.; no worms in 4 days; p. in., no worms; no 
conclusions. 
Dog 399; 0.1' m. p. k.; 8 hookworms and 3 ascarids first day; p. m., 
2 whipworms; 100 per cent vs. hookworms and ascarids, o per cent vs. 
whipworms. 
Dog 401; 1.5 m. p. k.; no worms in 3 days; p. m., no worms; no con¬ 
clusions. 
Dog 402; 0.2 m. p. k.; no worms in 3 days; p. m., 3 hookworms, 
2 ascarids, 1 whipworm; o per cent vs. hookworms, ascarids, and whip¬ 
worms. 
Dog 403; 0.2 m. p. k.; 1 hookworm first day; p. m., 9 whipworms, 
1 Dipylidium sp.; 100 per cent vs. hookworms, o per cent vs. whipworms 
and Dipylidium sp. 
Dog 404; 0.1 m. p. k.; 8 hookworms and 3 ascarids first day, 2 hook¬ 
worms second day; p. m., 27 hookworms, 20 ascarids; 27 per cent vs. 
hookworms, 13 per cent vs. ascarids. (This dog also received 22 gr. of 
freshly ground moldy areca nut; it is a question whether this affected 
the result.) 
Dog 406; 1 m. p. k.; 2 ascarids first day; p. m., 12 Dipylidium sp.; 
100 per cent vs. ascarids, o per cent vs. Dipylidium sp. 
Dog 407; 0.1 m. p. k.; 5 hookworms, 26 ascarids first day, 2 ascarids 
second day; p. m., 3 hookworms; 62.5 per cent vs. hookworms, 100 
per cent vs. ascarids. 
An examination of the findings for the 20 dogs listed above shows that 
in the 7 cases where dogs had Dipylidium the treatment with carbon 
tetrachlorid in doses from 0.2 to 1 m. p. k. was entirely ineffective against 
