94 
ANNIE MATTHEWS. 
Fig. 36. — Streams of mesogloea flowing between ectodermic interstitial 
cells, and cutting them off singly ( Sjob .), or in groups ( Gr . cell), x 760. 
Fig. 37. — Scleroblasts surrounded by mesogloea. (The spicules have 
been dissolved during preservation.) The mesogloea is seen streaming 
round the interstitial cells at the left hand of the diagram, x 760. 
Fig. 38. — Part of a transverse section of a young polyp, cutting 
through stomodseum and mesenteries, and showing the thin sheets of 
mesogloea, devoid of cells which together with the surrounding endo- 
derm form the mesenteries, x 380. 
Fig. 39. — Faintly staining streams of mesogloea, flowing in between 
the newly formed interstitial cells, from the endoderm. X 760. 
Fig. 40. — Vertical section of part of attached base of young polyp. 
The mesogloea is shown streaming in between the ectoderm cells, and 
then strengthening the mucous plug, x 608. 
