. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. a FIG. 14. Guenther's work, '03, on the nucleolus in the maturing eggs of the Echinodermata (Holothuria tnbulosa}. This author considers this one of the strongest elements in the evidence, for the chromatic nature of the nucleolus, since the in- dentation is taken to signify that the nucleolar substance has broken off to become a chromosome. Such a picture as that shown in Fig. 14, b, where, in an egg nearly ready for the first ma- turation, some of the much concentrated chromosomes actually lie within a nucleolar indentatio
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. a FIG. 14. Guenther's work, '03, on the nucleolus in the maturing eggs of the Echinodermata (Holothuria tnbulosa}. This author considers this one of the strongest elements in the evidence, for the chromatic nature of the nucleolus, since the in- dentation is taken to signify that the nucleolar substance has broken off to become a chromosome. Such a picture as that shown in Fig. 14, b, where, in an egg nearly ready for the first ma- turation, some of the much concentrated chromosomes actually lie within a nucleolar indentation, would most probably be inter- preted by Gunther, '03, and some other authors, as very strong evidence in favor of their hypothesis. Indeed, when stained with haematoxylin, some of the chromosomes are in such intimate con- nection with the nucleolus, that all the necessary conditions which their hypothesis demands seem to be realized. Yet nothing can be further from the truth. I have fortunately found such a stage. 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
