. The elements of experimental embryology. Embryology, Experimental; Embryology. FIELDS AND GRADIENTS IN NORMAL ONTOGENY 335. Fig. 155 Differential susceptibility in the early development of sea-urchins {Arbacia). A, B, Normal pluteus. C, D, Differential inhibition by dilute KCN; C, applied throughout development; D, applied for a short period. Inhibition of apical region (oral lobe) with (in D) correlative increase in basal regions and consequent parallel-armed condition. E-G, Diffefential acclimatisation in very dilute solutions. The apical regions become relatively very large, with conseque


. The elements of experimental embryology. Embryology, Experimental; Embryology. FIELDS AND GRADIENTS IN NORMAL ONTOGENY 335. Fig. 155 Differential susceptibility in the early development of sea-urchins {Arbacia). A, B, Normal pluteus. C, D, Differential inhibition by dilute KCN; C, applied throughout development; D, applied for a short period. Inhibition of apical region (oral lobe) with (in D) correlative increase in basal regions and consequent parallel-armed condition. E-G, Diffefential acclimatisation in very dilute solutions. The apical regions become relatively very large, with consequent wide-angled condition of the arms. (From Child, Physiological Foundations of Behavior, New York, 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