Kidney Worms, 411 



ds we have no positive symptoms of its existence in the 

 kidney. 



Of a much more serious character are hydatids or bladder 

 worms in the kidneys. These differ from those shortly to be 

 described as causing " measly '' pork, being much larger, amd 

 of unknown development. A number of cases are recorded 

 by Prof. N. S. Townshend, in the Annual Reports of the 

 Ohio Agricultural Society, for 1875, where the sudden death 

 of hogs, with few and obscure symptoms, was found to be 

 owing to the presence of these parasites. They were from 

 one to one and a half inches in diameter, and the kidney and 

 bladder contained blood. If it were possible to ascertain 

 their existence in the kidney, steady, moderate doses of tur- 

 pentine would be the most promising treatment. Perhaps 

 the altered character of the urine which Prof. Townshend 

 notes, would have led a closer observer than the farmer who 

 owned the pigs to a suspicion of the nature of the complaint. 



MEASLES. 



The name "measles'' has been given to a parasitic disease 

 of swine, not that it resembles in the most remote degree the 

 familiar malady known in the human species by that name, 

 but because the flesh of hogs so affected bears a fancied 

 resemblance to the human skin with the eruption of measles 

 on it. 



This aj)pearance of pork is owing to the presence of num- 

 erous small cysts, about the size of a grain of barley, scattered 

 through the muscular and other tissues. These cysts, when 

 closely examined, are found to contain a small worm, called 

 the bladder worm, folded up in a coil, and composed of 

 numerous segments, each of which segments is, in fact, an 

 independent individual. What is more remarkable is that 

 the minute worm is nothing else than the miniature form of 

 that redoubtable occasional inhabitant of the human intes- 



