MEASLES IN CATTLE. 347 



MEASLES IN CATTLE. TSENIA MEDIOCANELLATA (KliCHEN- 

 MEISTEE). 



Eecent researches by Dr Leuckart demonstrate incontes- 

 tably that there is a form of tapeworm, not unfrequently 

 confounded with tsenia solium, which does not originate in 

 man from eating measly pig, but from eating imperfectly 

 cooked veal and beef. In many parts of the world a hydatid 

 prevails amongst cattle, which developes into tsenia medio- 

 canellata in the human intestine. That hydatid is found in 

 many parts of Europe, and probably exists occasionally in 

 this country. Dr Cobbold has a specimen of tsenia medio- 

 canellata in his collection, obtained from Sheffield, and he 

 informs me that we shall probably find that this variety of 

 tapeworm is not at all rare in this country. There is a 

 specimen in the New Veterinary College Museum, for which 

 I am indebted to Dr Keith of Aberdeen. Leuckart quotes 

 an observation which interests us as Englishmen. He says 

 that Knox observed a tapeworm epidemic during the Kaffir 

 war in 1819 amongst the English soldiers, due to their being 

 fed on unsound beef. Abyssinians are affected with this 

 disease, and observations have been made in Germany and 

 Russia as to the occurrence of tsenia mediocanellata amongst 

 children, fed "aus diatetischen Griinden" on raw beef. 



Dr Leuckart has succeeded in inducing measles in the 

 calf, by feeding it with joints of tsenia mediocanellata. 



As hydatids prevail to a very extraordinary extent amongst 

 cattle and sheep in this country, it is very important that a 

 carefully conducted inquiry should be prosecuted, with a 

 view to determine the existence or non-existence amongst 

 us of tsenia mediocanellata, and the cysticerci which induce 

 them. 



