. A manual of zoology. Zoology. '>5i CHORD ATA. lantoidea, from the absence of these structures. The amnion is a sac which envelops the whole embryo and is connected with the rest only at the umbilicus, that is, the point where the yolk sac projects from the ventral wall. In tliis sac is an albuminous. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929.
. A manual of zoology. Zoology. '>5i CHORD ATA. lantoidea, from the absence of these structures. The amnion is a sac which envelops the whole embryo and is connected with the rest only at the umbilicus, that is, the point where the yolk sac projects from the ventral wall. In tliis sac is an albuminous. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902
