118 



:he internal parasites of 



investigations have long since shown that this cestode 

 parasite is not nearly so common in England as the 

 Tcema mediocanellata, which, as before remarked, Leuck- 

 art and myself have experimentally proven to be derived 

 from eating beef; and as regards the Trichina , many 

 other animals than swine are liable to be infested by it,, 

 though, doubtless, human bearers have hitherto infected 

 themselves with this entozoon principally, if not exclu- 

 sively, by the consumption of underdone pork. The 

 expression " this favourite quadruped w clearly refers to 

 the preference given to swine's flesh as human food, and 

 not to the animal itself. 



Fig. 27. Measles or Ctsticerci in Pork. 



My object in prefixing these remarks is mainly for the- 

 purpose of counteracting the popular and very erroneous 

 notion that, in the matter of parasitism, pork is more 

 productive of tapeworm than any other kind of meat. 

 Measly pork should certainly be avoided as unfit for 

 human food, unless thoroughly well cooked ; yet I have 

 known a family to partake of a measled ham when the 

 latter was infested to an extent that had produced a 

 thoroughly disgusting and spawn-like appearance. 



Such a diseased portion was that sent to me by Dr.. 



