434 



ATONIC DISEASES. 



Fig. 5. 



as long as they are broad. Tlie gener- 

 ative orifices (b h) are placed near the 

 middle of one of the margins of each 

 joint, and are generally alternate [fig. 5, 

 c d). The Tceiiki solium is androgyn- 

 ous ; that is to say, it produces its ova 

 without the necessity for the contact of 

 two individuals, the male and female 

 organs being contained in each." Pro- 

 fessor Owen thus describes them : "In 

 each joint of this worm there is a large 

 branched ovarium {^fig. 5, /), from which 

 a duet (//) is continued to the lateral 

 opening ; the ova are crowded in the 

 ovary, and in those situated on the pos- 

 terior segments of the body they gener- 

 ally present a brownish colour, which 

 renders the form of their receptacle 

 sufficiently conspicuous. In segments 

 which have been expelled separately, we 

 have observed the ovary to be nearly 

 empty ; and it is in these that the male 

 duct and gland are most easily perceived. 

 For this purpose, it is only necessary 

 to place the segment between two slips 

 of glass, and view it by means of a 

 simple lens, magnifying from 20 to 30 



