IO4 



CHILD. 



In Fig. 48 the groups of nuclei, though visible laterally, do not 

 extend to the median plane. It should be noted that the paren- 

 chyma-nuclei are more abundant in Fig. 45 than in Fig. 44, thus 

 indicating that multiplication of the nuclei is occurring even in 

 the neck-region anterior to the point where the proglottids be- 



FIG. 55. 



come distinct, for Fig. 45 is taken some distance posterior to 

 Fig. 44. 



Fig. 5 5 is drawn from a nearly sagittal section near the pos- 

 terior end of the neck region. Its plane is indicated by the line 



Fie. 56. 



55 in Fig. 54. The ventral nephridial canal lies partly in the 



plane of the section. Here again an aggregation of the nuclei 



into groups is visible, especially in the lower portion of the figure. 



Fig. 56 represents another oblique section which cuts both 



