TAPEWORMS. 19 



the intestine and its contents, literally scouring 

 the patient's bowels and driving everything before 

 them. Now, to tell the truth, treatment on this 

 pop-gun sort of principle is sometimes temporarily 

 successful, and you may occasionally drive out ten 

 or fifteen feet of a tapeworm merely by a vigorous 

 dose of jalap or castor oil. In such cases, however, 

 you must not expect to secure or dislodge the head 

 of the parasite ; the tapeworm will, therefore, cer- 

 tainly grow again. To be sure, I do not say that 

 in every case where you employ the proper remedial 

 agents that you must invariably succeed; indeed, 

 in cases where you have to deal with the armed 

 varieties of tapeworm you will rarely obtain the 

 head. Fortunately, however, as my investigations 

 and experiences have especially shown, the unarmed 

 beef tapeworm is the particular species most com- 

 monly encountered in private practice. 



c 2 



