TAPEWORMS. 55 



tual success if the patient changed his mind. 

 Whatever treatment happens to be adopted, it 

 is impossible that the authelmintics employed 

 should act more vigorously than these have done. 

 The doses were as large as could be given with 

 safety ; so strong were they, indeed, that in the 

 case of the male-fern there was a decided action 

 upon the liver. The flow of bile was for a short 

 time checked, and there were decided premoni- 

 tory symptoms of jaundice. These physiological 

 indications, however, very soon passed off, leaving 

 no prejudicial effects behind them. This is the 

 only instance in which I have noticed any special 

 action on the liver ; and it is sufficiently accounted 

 for by the fact that I employed unusually active 

 treatment. I felt justified in pursuing this course 

 on account of the utterly negative results obtained 

 by the treatment the patient had undergone when 

 living abroad. 



In a short while I hope to be able to complete 

 what I have further to say on this subject. We 

 shall then pass on to the consideration of the 

 general structure, development, and best modes of 

 treating the threadworms and their allies. 



