158 



WORMS INFESTING THE DOG. 



and, 3. Cysticercus tenuicollis, whose habitat is the serous 

 membrane of ruminating animals, and also occasionally of the pig. 

 4. Cysticercus cellulosce, found in the muscles of the pig, and 

 known as producing measly pork. 



The following illustrations, copied from Siebold, show the 

 Tcenia in its several stages of development from Ccenurus cerebralis. 

 The experiments are related with great minuteness, and I see 



no reason to doubt their correctness, for positive evidence is 







not necessarily upset by experiments attended with a negative 

 result. 



It may readily be imagined that some one or more of these cysts 

 may be swallowed by the butcher's dog, or by others fed like them 

 with offal, and also by the greyhound and other hare-killing dogs 

 when they meet with a liver of that animal, or of the rabbit, contain- 

 ing the Cysticercus pisiformis. On reaching the stomach the cyst 

 is soon transformed into Tcenia serrata, as has been clearly demon- 

 strated by numerous experiments performed by Kuchenmeister and 



