Note 365 — Chapter XII · (continued 2)

Flemming (6) finds that, in the summer and probably parthenogenetic eggs of Lacinularia socialis, the germinal vesicle approaches the surface and becomes invisible, and that subsequently a slight indentation in the outline of the egg marks the point of its disappearance. In the hollow of the indentation Flemming believes a polar cell to be situated, though he has not definitely seen one.