. Biological lectures delivered at the Marine Biological Laboratory of Wood's Holl [sic]. Biology. FiG. I. Fig. II. jects all around as a thin rim (Fig. I). The disk is saucer- shaped, and only a little thicker thaTi the egg-membrane itself. I have been able to separate it from the membrane in the case of eggs hardened before attachment. As the Qgg is generally fastened to more or less plane surfaces, it appears strongly flattened on the side of attachment, as described by Dr. Ryder and as shown in Fig. II. That the egg-membrane, with its adhesive disk, does not change position after attachmen
. Biological lectures delivered at the Marine Biological Laboratory of Wood's Holl [sic]. Biology. FiG. I. Fig. II. jects all around as a thin rim (Fig. I). The disk is saucer- shaped, and only a little thicker thaTi the egg-membrane itself. I have been able to separate it from the membrane in the case of eggs hardened before attachment. As the Qgg is generally fastened to more or less plane surfaces, it appears strongly flattened on the side of attachment, as described by Dr. Ryder and as shown in Fig. II. That the egg-membrane, with its adhesive disk, does not change position after attachment is, then, very certain ; but is the egg itself also fixed within the membrane, and does it main- tain a fixed position for the time required to reach an early stage in the axial differentiation — six or seven days after fer- tilization } or is it liable to rotate and get displaced, and so invalidate the results obtained .-" In the experiment of '91 the eggs were allowed to flow from. 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 Marine Biological Laboratory (Woods Hole, Mass. ). Boston, Ginn & Co
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectbiology
