OF THE HUMAN BODY. S^ 



eoming a little longerj they thus continue to the 

 tail, which resembles a truncated piece. The lat- 

 eral margins become irregular and are said by nat- 

 uralists to be closed. 



This worm varies in length. The longest hu- 

 man taeniae which Pallas ever saw were fromi 

 eighteen to twenty Paris feet, (from six to seven 

 metres.) 



Block sent one of these worms in several pieces 

 to Goezpf discharged by a woman of Berlin, whose 

 entire length was eighty two metres. The big- 

 ness, length and breadtli of this worm vary with^ 

 or are in proportion to its age and nutrition, as we 

 have said of the first species. (1 1 0) 



§^ XXr. The head of this taenia is very minute ^ 

 like the other species, the head of this is also fur- 

 nished v/ith four lateral papillae, and with a sin- 

 gle papilla, in the centre of which Werner has- 

 likewise seen the tube. (Hi) 



This central papilla has not the crown of fangs 

 which encircles the tube of the armed taenia. 



These four papillae are also in this taenia, the 

 orifices of the four lateral canals which pervade 

 the margin of all the joints of the worm to the tail. 

 The middle canal also passes through the centre 

 of each articulation, but it is not known to commu- 

 nicate with that of the next rings, since neilhei.' 

 Pallas nor Goeze was able to push an injection 

 through its whole length, as Winslow assures us- 

 he has done.(llS) 



The neck is quite covered with whitish fila- 



