. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 1. Unstained autoradiograph of arm section 1 hour after injection of C"-amino acids. Note retention of radioactivity in tissues associated with perivisceral coelom. Slight darkening of epidermis is due to natural pigmentation and small amounts of tracer absorbed by this tissue directly from the exterior medium ; 11 X. FIGURE 2. Section similar to that in Figure 1 from animal sacrificed 24 hours after injec- tion. Note activity in hemal septum and connective tissue layer of tube feet; 10 X. FIGURE 3. Section simil
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIGURE 1. Unstained autoradiograph of arm section 1 hour after injection of C"-amino acids. Note retention of radioactivity in tissues associated with perivisceral coelom. Slight darkening of epidermis is due to natural pigmentation and small amounts of tracer absorbed by this tissue directly from the exterior medium ; 11 X. FIGURE 2. Section similar to that in Figure 1 from animal sacrificed 24 hours after injec- tion. Note activity in hemal septum and connective tissue layer of tube feet; 10 X. FIGURE 3. Section similar to the previous ones from animal sacrificed 5 days after injec- tion. Hemal septum is still radioactive. Some labeled amoebocytes are in the ampullae and the tube feet. Greater dispersion of radioactivity in the body wall is now discernable; 10 X. FIGURE 4. Section similar to the previous ones 20 days after injection. More dispersion of radioactivity through the dermis has occurred; 12 X. FIGURES 5 and 6. Sections similar to the previous ones from animals sacrificed at 55 and 75 days after injection. Much dispersion of radioactivity has occurred in the various tissues, but the most active areas are still the same as they were at 24 hours; 10 X and 14 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
