. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 354 P. S. HEXSHAW AND C. T. HENSHAW cell stages, figures like those in rows B and C, respectively, will be found. Normally, the cells divide equally and simultaneously during early cleav- age so that the number of cells increases 2-4—8-16. etc. It appears that during exposure some of the e^^s by random distribution took a position with one cell (in the first case) shielded by the other from the radiation and that the radiation penetrated only far enough to destroy the cell nearest the surface. Since the over-all diameter of
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 354 P. S. HEXSHAW AND C. T. HENSHAW cell stages, figures like those in rows B and C, respectively, will be found. Normally, the cells divide equally and simultaneously during early cleav- age so that the number of cells increases 2-4—8-16. etc. It appears that during exposure some of the e^^s by random distribution took a position with one cell (in the first case) shielded by the other from the radiation and that the radiation penetrated only far enough to destroy the cell nearest the surface. Since the over-all diameter of this organism in the two-cell stage is about 75 ^ and since alpha particles appear to have penetrated not more than half this distance, their range in this case must have been less than 40 B C. 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
