CYSTICEECUS CELLULOSE 117 



On dissection, forty-eight hours after execution, I found ten 

 young Teenies, of which indeed six were deprived of their hooks, 

 but four distinctly showed the boohs of T. solium. The little 

 Tcenia> were 4 — 8 millim. in length, had exserted their hooks 

 and proboscis and attached themselves therewith to the intestine, 

 and possessed a small band-like appendage, some 2 — 5 millim. 

 long, which was notched or inverted at the extremity, as it is seen 

 in those individuals which are found, for example, in the intestine 

 of a dog three days after the administration of the Cysticerci of the 

 rabbit. 



Subsequent experiments of the same kind will certainly give us 

 the means of tracing the progress of this Taenia as it increases in 

 age, according to the various times of administration of Cysiicercus 

 cellulosce. In the meanwhile the preceding experiment is a 

 sufficient proof of this conversion of the cystic worms into Teeniee 

 in the interior of the human intestine, and also of the mode of 

 infection. 



I take this opportunity to mention that I have never yet 

 been able to find Teenia solium from Cyst, celluloses in the intes- 

 tine of the dog. Von Siebold only bred immature and generally 

 stunted specimens. Many of the Teenia solium which authors 

 supposed they have found in the intestine of the dog, must 

 have been T. ex Cyst, tenuicolli. As in small towns without a 

 common slaughter-house, the Cyst, celluloses is usually concealed 

 by the butchers, I have had a difficulty in obtaining Cysticerci 

 celluloses, three, four, or more days old and always cut open, 

 and thus I have convinced myself, by various experiments, 

 that the scolex of a Teenia only retains its power of development 

 in its dead host as long as no putridity occurs, which happens 

 within three or four days in summer. The six-hooked young 

 resist longer. 



Other habitations of Cysticercus cellulosa?, and other modes of 

 infection with Taenia solium, caused thereby. 



With the exception of the doubtful Cysticercus celluloses 

 of the peritoneum of dogs and rats, the Cysticercus occurs 



and contradictory to nature. Ic appears, however, from my experiments with the 

 criminal, that the intestine presented no traces of those Cysticerci which had lain more 

 than five days in the air with the caudal vesicle uninjured. 



