. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 162 FLORENCE PEEBLES. L and R) have been observed for days after the operation, swimming about rapidly but showing no sign of fission, or of regeneration of the lost end. Although the conjugating pairs were cut at the same level after separation one fragment was almost always smaller than the other (Fig. n). The small one (R) generally dies, and the large one (L) divides to form a normal race, when both halves lived the smaller one finally divided and after many generations the descendants regained the normal size. The fissi
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 162 FLORENCE PEEBLES. L and R) have been observed for days after the operation, swimming about rapidly but showing no sign of fission, or of regeneration of the lost end. Although the conjugating pairs were cut at the same level after separation one fragment was almost always smaller than the other (Fig. n). The small one (R) generally dies, and the large one (L) divides to form a normal race, when both halves lived the smaller one finally divided and after many generations the descendants regained the normal size. The fission of all fragments of conjugating pairs was regular; I have never seen a large and a small cell formed by division in the original plane as so frequently happens when cells. 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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