The lining of the mesenteron, or hypoblast From the epiblast the epidermis (not the dermis), the nervous system (including the nerves), and the sensory part of all sense organs are derived.— Text Book of Biology, Part 1: Vertebrata
The lining of the mesenteron, or hypoblast.— Text Book of Biology, Part 1: Vertebrata
entirely) obliterate the segmentation cavity-- they certainly do so throughout the body; and their cavities are in time cut off from the mesenteron, by the gradual constriction of their openings.— Text Book of Biology, Part 1: Vertebrata
They finally appear to (? entirely) obliterate the segmentation cavity -- they certainly do so throughout the body; and their cavities are in time cut off from the mesenteron, by the gradual constriction of their openings.— Text Book of Biology, Part 1: Vertebrata

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