. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 3. FIG. 4. end presents somewhat the appearance of Fig. 3. The piece is collapsed, the margins are much folded and the only new tissue visible is the small area between the inrolled margins represented in the figure by the stippled portion. These facts serve to introduce the chief point in the present consideration, viz., this : so long as there is no tension exerted upon this new tissue closing the ends it does not increase in surface-area, but mere differentiates into the typical structure of the body-wall. In other w
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 3. FIG. 4. end presents somewhat the appearance of Fig. 3. The piece is collapsed, the margins are much folded and the only new tissue visible is the small area between the inrolled margins represented in the figure by the stippled portion. These facts serve to introduce the chief point in the present consideration, viz., this : so long as there is no tension exerted upon this new tissue closing the ends it does not increase in surface-area, but mere differentiates into the typical structure of the body-wall. In other words the ends of the piece have no power in themselves to spread apart and thus initiate the forma- tion of a new disc. What occurs in the typical course of regen- eration is shown in Fig. 4. The inrolled margins are grad- ually spread apart while the thin membrane of new tissue uniting them — the stippled area in the figure--increases in area as they 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
