. The cell in development and inheritance. Cells. Fig. 185. — Dwarf and double embryos of Amphioxus. A. Isolated blastomere of the two-cell stage segmenting like an entire egg {cf. Fig. 183, D). B. Twin gastrulas from a single egg. C. Double cleavage resulting from the partial separation, by shaking, of the blastomeres of the tw^o-cell stage. Double gastrulas arising from such torms as the last. Still forming part of a complete embryo ("partial development"), but in other cases developing directly into a complete dwarf embrj^o, as if it were an egg of diminished size. In 1891
. The cell in development and inheritance. Cells. Fig. 185. — Dwarf and double embryos of Amphioxus. A. Isolated blastomere of the two-cell stage segmenting like an entire egg {cf. Fig. 183, D). B. Twin gastrulas from a single egg. C. Double cleavage resulting from the partial separation, by shaking, of the blastomeres of the tw^o-cell stage. Double gastrulas arising from such torms as the last. Still forming part of a complete embryo ("partial development"), but in other cases developing directly into a complete dwarf embrj^o, as if it were an egg of diminished size. In 1891 Driesch was able to follow out the development of isolated blastomeres of sea-urchin. 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 Wilson, Edmund B. (Edmund Beecher), 1856-1939. New York, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcells, bookyear1911
