. The elements of experimental embryology. Embryology, Experimental; Embryology. ':i / U:l V. » 0^ 'i^!to^. ^. Fig. 212 Functional activity and morpho- genesis in amphibian gills. Below: two salamander larvae; left, reared in conditions of oxygen-deficiency (in water under an atmosphere with II per cent. Oo); the gills are long and feathery; right, reared in con- ditions of oxygen-excess (in water under an atmosphere of pure O2); the gills are short and stumpy. Above: sections of gill-filaments from two similar larvae; right, oxygen-deficiency: epithelium one layer thick, of flattened cells; l


. The elements of experimental embryology. Embryology, Experimental; Embryology. ':i / U:l V. » 0^ 'i^!to^. ^. Fig. 212 Functional activity and morpho- genesis in amphibian gills. Below: two salamander larvae; left, reared in conditions of oxygen-deficiency (in water under an atmosphere with II per cent. Oo); the gills are long and feathery; right, reared in con- ditions of oxygen-excess (in water under an atmosphere of pure O2); the gills are short and stumpy. Above: sections of gill-filaments from two similar larvae; right, oxygen-deficiency: epithelium one layer thick, of flattened cells; left, oxygen-excess : epithelium often two layers thick, of rounded cells. (From L. Drastich,Zeif5c/; vergl. Physiol. II, 1925.) is raised. The quantity of fluid evacuated per day may reach 50 litres under these experimental conditions. As a result of this increased work to which the wall of the bladder has been put, it 28-2. 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