. The elements of experimental embryology. Embryology, Experimental; Embryology. The presence of the organiser region is essential for development, a, A newt's egg constricted into two in the transverse plane, thus separating dorsal and ventral halves, b, The result of isolation of a dorsal half (containing the organiser region): a perfect embryo, c, The result of isolating a ventral half (lacking the organiser region): a blastula-like ball of cells which develops no further, d, A newt's egg constricted in the plane of symmetry, thus separating lateral halves, each of which contains a portion
. The elements of experimental embryology. Embryology, Experimental; Embryology. The presence of the organiser region is essential for development, a, A newt's egg constricted into two in the transverse plane, thus separating dorsal and ventral halves, b, The result of isolation of a dorsal half (containing the organiser region): a perfect embryo, c, The result of isolating a ventral half (lacking the organiser region): a blastula-like ball of cells which develops no further, d, A newt's egg constricted in the plane of symmetry, thus separating lateral halves, each of which contains a portion of the organiser region, and, e, develops into a perfect embryo. (From Spemann, Naturzviss. iv, 1924.). 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 Huxley, Julian, 1887-1975; De Beer, Gavin, Sir, 1899-1972. New York [Hafner Pub. Co. ]
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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectembryology
