. The elements of experimental embryology. Embryology, Experimental; Embryology. mi m mm Kfe. 'Ji!'.v^^ Fig. 135 Correlation between size and degree of development of a regenerated apical region in Planaria, and the extent of its inductive capacity. Posterior fragments are isolated as shown in a. h. Regeneration in standard conditions, c-e. Regene- ration in increasing concentrations of narcotics, showing decreasing size and in- creasing abnormality of the regenerated head. Correlated with this, the pharynx induced in the old tissues becomes smaller and less remote from the apical region. /, R
. The elements of experimental embryology. Embryology, Experimental; Embryology. mi m mm Kfe. 'Ji!'.v^^ Fig. 135 Correlation between size and degree of development of a regenerated apical region in Planaria, and the extent of its inductive capacity. Posterior fragments are isolated as shown in a. h. Regeneration in standard conditions, c-e. Regene- ration in increasing concentrations of narcotics, showing decreasing size and in- creasing abnormality of the regenerated head. Correlated with this, the pharynx induced in the old tissues becomes smaller and less remote from the apical region. /, Regeneration at high (optimal) temperature. The head and eyes are larger, the induced pharynx farther away and of greater size. (From Child, Individuality in Organisms, Chicago, 1915.) possible range. For instance, the reconstitution of a polyp in a portion of stem of Tuhiilaria of a certain length normally results in. 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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