. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. n6 FRANK R. of this fusion must have been an opening on each side into the yolk-sac ; but this has been roofed over by extension of the B. FIG. 15. Experiment 60. Under entodermal, surface of the blastoderm. The embryo is anamniote, but otherwise quite perfect, all, allantois ; , extra- embryonic body-cavity ; vitelline arteries and veins shown A-£, plane of the sec- tion shown in Fig. 16. The embryo was suspended within the yolk-sac, as described in the text. blastoderm surrounding it. Farther back the w
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. n6 FRANK R. of this fusion must have been an opening on each side into the yolk-sac ; but this has been roofed over by extension of the B. FIG. 15. Experiment 60. Under entodermal, surface of the blastoderm. The embryo is anamniote, but otherwise quite perfect, all, allantois ; , extra- embryonic body-cavity ; vitelline arteries and veins shown A-£, plane of the sec- tion shown in Fig. 16. The embryo was suspended within the yolk-sac, as described in the text. blastoderm surrounding it. Farther back the wall of the intes- tine becomes continuous with the extra-embryonic splanchno- pleure. In the region of the tail rudiments of the tail-fold of the amnion are found. Two other completely anamniotic embryos (numbers 112 and 124) were produced by experiments similar to those already described. Both of these had passed through the hole made in the blastoderm and were suspended within the yolk-sac. One of these was much farther developed than number 60. They confirm the general results of the dependence of amnion formation on the presence of the head-fold. They possess other definite lesions, the effects of which will be described in another 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. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
