THE BROAD TAPE-WORM. 715 



more capable of resistance than themselves. For example, several species of Entozoa 

 have been found in a living state within meat after it has been cooked, especially in 

 those spots where the heat had not penetrated sufficiently to destroy the natural ruddi- 

 ness of its color. It is known that " measly " pork derives its peculiar aspect from the 

 presence of Entozoa, and that many of these Entozoa, or, at all events, their eggs, are 

 swallowed by human beings, within whom they make their homes, and whom they con- 

 demn to infinite worry, pain, and weakness. 



Even immersion in alcohol does not seem to inflict any serious damage upon these 

 creatures. Rudolphi found a specimen of an Ascaris quite lively in the throat of a 



GULL-WORM. Tasnla porosa. 

 RAY-WORM. Bothriocophalus tumldulus. 



cormorant that had been steeped in spirits of wine for nearly a fortnight. Even the 

 severe process of being thoroughly dried appears to be quite as ineffectual to destroy 

 these beings. A number of Ascarides that had been removed from a fish and suffered 

 to become quite dry, and were apparently nothing more than flat slips of membrane 

 adhering to a board, began to revive as soon as they were wetted, and actually moved 

 the moistened part of their bodies, while the remainder was still dry and adhering to 

 the board. 



