. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. D TEXT FIG. A. Semidiagrammatic transection through the posterior of the 5o-hour embryo B' 23. The spots indicate the positions in which the greater portion of the sex-cells are found at this stage. The rectangle includes the area which is drawn in detail in Fig. 8. X 225. •TEXT FIG. B. Transection from the iO5-hour embryo, showing the first decided advance over the stage illustrated in Text Fig. A. Here the gut, Wolffiau ducts and the ccelome have taken form. The rectangle includes the area drawn in Figs. 14, 15 and 16. X 2
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. D TEXT FIG. A. Semidiagrammatic transection through the posterior of the 5o-hour embryo B' 23. The spots indicate the positions in which the greater portion of the sex-cells are found at this stage. The rectangle includes the area which is drawn in detail in Fig. 8. X 225. •TEXT FIG. B. Transection from the iO5-hour embryo, showing the first decided advance over the stage illustrated in Text Fig. A. Here the gut, Wolffiau ducts and the ccelome have taken form. The rectangle includes the area drawn in Figs. 14, 15 and 16. X 225. TEXT FIG. C. Showing progress of development after (5 days. Figs. 17 and 18 are detailed drawings of the area included in the rectangle. X 225. TEXT FIG. D. Transection through the developing gonads of the g-day embryo, B 34. The sex-cells are collected ventral to the Wolffian ducts. The dorsal mesentery shows a decided change from conditions found in earlier stages. X 90. TEXT FIG. E. From the 13-day embryo B 42, showing the effect of the developing swim bladder. X 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
