346 KENNEL DISEASES. 
pin, also that it is attached to a very slender neck, which broadens gradually to 
mature segments of full size. 
Although the head of a tape-worm may now and then be found, consider- 
ing its smallness it easily escapes notice; moreover, the parasite often dies, 
consequently its hold on the lining membrane of the intestines is broken, and 
the head is carried downward out of the body with the waste matters, while 
many of the segments remain behind. Therefore, were the head not found, 
it would be too much to infer that the treatment was not successful. If, how- 
ever, after several weeks had elapsed, segments again appeared in the dis- 
charges, they could rightly be accepted as proof that the treatment had not 
been effectual, and the head was still in the intestine. 
In view of these facts, whether or not tape-worm treatment should be soon 
repeated in event the head is not found must depend upon the existing condi- 
tions. Did marked improvement in all the symptoms occur, it would be ad- 
visable to delay; but in event the signs of tape-worm persist, together with 
disturbances believed to be due to it, and the dog or puppy seems in danger in 
consequence of them, then to at once repeat the treatment would be right. 
Sometimes a worm medicine is given without any noticeable effect, such as 
the discharge of small and immature segments. In cases of that sort it might 
not be unreasonable to infer that the remedies which had been administered 
were too mild in their action; and did the patient seem healthy, strong, and 
vigorous, thus well able to bear the dosing, it would be expedient to try some 
other vermifuge in the course-of a week. Such robust patients also would 
doubtless be able to bear still another treatment during the third week. If so, 
it ought to be administered did any marked signs of worms remain after the 
second dose, but not otherwise. 
After ‘‘worming treatment” the intestinal discharges should be examined 
from time to time for segments. If none appeared in them during the subse- 
quent two or three months, the caretaker could confidently assume that his 
treatment was a success, and the head had been expelled, even had he failed to 
find it; because had it been left within the intestine the worm must have re- 
produced itself, again reached maturity, and its ripened and detached segments 
begun to come away. 
To repeat treatment for tape-worms the second, and, indeed, the third time 
during successive weeks can scarcely prove unwise even in doubtful cases, pro- 
vided always the subjects are robust, in view of the very important fact that 
very often the same dog harbors several tape-worms, — and may be of different 
species, — in which event all would not likely be driven out by one dose of 
worm medicine unless it was exceptionally large or powerful. 
This suggestion, that a dog may be infested by several tape-worms, calls to 
mind an interesting case in man, recently reported, which demonstrates a sur- 
prising possibility. The subject was a marine engineer, who acquired the 
