CESTODA 91 



a case where irritability of the bladder and stricture of the 

 urethra were entirely dependent on tapeworm, as proved by 

 the subsequent recovery. At a meeting of the Pathological 

 Society, in 1853, Dr Winslow mentioned his experience of 

 three or four cases of mania arising from tapeworm ; whilst on 

 the same occasion Drs Ryan and Davey each recorded a similar 

 instance. A case has also been previously published by Mr W. 

 Wood. At a meeting of the London Medical Society, held on 

 the 10th of April, 1837, Dr Theophilus Thomson (during an 

 interesting discussion on this subject) stated the facts of a 

 case where the presence of tapeworm had given rise to a 

 tumultuous action of the heart, this symptom entirely disappear- 

 ing after evacuation of the worm. Our journals likewise (anony- 

 mously) record a considerable number of cases from foreign 

 sources. Thus, in the ' London Medical Gazette ' for 1840, there 

 is the case of a lady, aged thirty- seven, who had convulsions 

 attended with a complete loss of consciousness, the separate fits 

 lasting an hour at a time. The passage of the worms effected 

 a complete cure. In the same journal for 1838, there is also 

 the case of a younger lady (aged twenty-seven) suffering from 

 epilepsy, in whom a complete cure had been similarly brought 

 about ; here, however, in addition to a single specimen of the 

 Ttenia solium, there were two lumbrici present. This journal 

 also gives Ettmiiller's case, where eighteen tapeworms were 

 the cause of hysteria ; and likewise the case published by 

 Steinbeck, where the symptoms presented an altogether peculiar 

 character. More precise references to some of the above cases 

 will be found in the ' Bibliography ' below ; and I may also 

 refer to my published lectures on Helminthology and especially 

 to my separate work on Tapeworms, where particulars of one 

 hundred cases are briefly recorded. These were all average 

 cases occurring to me whilst in private practice. Davaine's 

 book also abounds with remarkable cases. 



Whilst the adult worm is capable of producing serious 

 and even fatal mischief to the bearer, the larvae or measles 

 much more frequently prove fatal. The Cysticerci may 

 develop themselves in almost any situation in the human body, 

 but they occur most commonly in the subcutaneous, areolar, 

 and intermuscular connective tissue ; next, most commonly in 

 the brain and eye, and lastly, in the substance of the heart and 

 other viscera of the trunk. 



In my ' Entozoa ' I have stated that probably not less than 



