CIRCLET OF SCOLEX 191 



it subsists, and in which it undergoes develop- 

 ment into a more advanced stage of life. 



Finally, what is a Scolex? Only medical 

 students will be interested in the answer. 



Professor Siebold long suspected that the 

 ring of horny spines forming the armature of 

 the Cysticercus fasciolaris met with in the 

 liver of the mouse, and a similar structure in 

 Tcenia crassicollis, found in the cat, strongly 

 resembled each other, and at length, by 

 experiments which we need not describe, 

 ascertained beyond the possibility of a doubt 

 that they are identically the same. 



Kuchenmeister also found by experiments 

 with animals that C&nurus cerebralis and 

 Cysticercus cellulosa are but Scoleces in the 

 ordinary chain of life of the tape-worm. 



Van Beneden's researches led to the same 

 result. 



We may feel somewhat squeamish about 

 the mention of Entozoa, but it is better to 

 know something of the life-history of these 

 internal enemies of the human being, and 

 benefit by the knowledge, than to remain in 



