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206 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
where large clear spaces are seen, which are either inter- 
cellular spaces or cell vacuoles, probably both. The 
epithelium in the intestinal division (Hp.J.3) is made up 
of much shorter cells, which bear short cilia. The free 
extremities of these cells fit closely together, but the 
lower ends are rather loose. Scattered abundantly 
throughout the epithelium are large, round, oily masses, 
staining faintly with eosin, and quite homogeneous in 
structure. Similar bodies can be seen in the tissue lying 
outside the epithelium. Here they are seen to be true 
cells, with the nucleus compressed against one portion of 
the cell wall and the greater part of the cell space filled up 
with an oily globule. In many the cell contents are very 
coarsely granular, and stain strongly with eosin. Others 
are finely granular, and all transition stages between the 
coarsely granular condition and the homogeneous appear- 
ance, which the bodies in the epithelium present, can be 
found. Similar oily globules can be found projecting into 
the lumen of the intestine, or even lying free in the cavity. 
Nuclei are not evident in these structures in the latter 
positions. The nuclei of the ordinary cells are found near 
their bases. Above each nucleus is a large clear cell 
vacuole, the occurrence and position of which seem to be 
fairly constant. 
In the sac of the crystalline style and near the anterior 
fold is a very remarkable strip of epithelium (Hp.J.2), 
which extends all the way from the opening of the sac 
into the stomach to the point from which the spiral 
division of the intestine takes origin. This appears in 
transverse section as a crescentic area of the wall made up 
entirely of very long spindle cells. On the left side these 
long cells pass gradually into the epithelium lining the 
sac of the crystalline style. On the right side they are 
very sharply demarcated from the short cells lining the 
