868 DR. F. E. BEDDARD ON 
more deeply stained. I take this to be due to a solidification of 
the tissue by the disposition of matter in the interstices of the 
orginally existing network, which is more responsive to staining 
by logwood. The nuclei are more abundant than in the sur- 
rounding medullary parenchyma. But they are in the same way 
Text-figure 5. 
Horizontal section through not fully ripe proglottid of Rhabdometra cylindrica. 
par. Paruterine organ. wé. Uterus appearing as numerous partly detached 
cavities. v.d. Vas deferens. w.v. Transverse water-vascular vessel. 
of two kinds—larger and clearer nuclei which appear to be 
myoblasts, and smaller nuclei which belong to the connective- 
tissue network. A peculiar feature m the structure of the 
paruterine organ at this stage, and one which is a further proof 
of the view that it is a modified region of the medullary 
