. Chemical embryology. Embryology. 548 ON INCREASE IN COMPLEXITY [PT. Ill older the embryo. A note of caution must be inserted here, how- ever, in view of the fact that, until we know more about the behaviour of individual organs in the light of these conceptions, we cannot estimate the part played by ossification, for instance, in producing these overall results. Murray also afterwards found that the curve Per Pep cent cent. 9 11 13 Incubation age Fig. 92. relating age with oxygen absorbed by the embryo per gm, per day did not decline quite like the carbon dioxide evolution curve, slowly
. Chemical embryology. Embryology. 548 ON INCREASE IN COMPLEXITY [PT. Ill older the embryo. A note of caution must be inserted here, how- ever, in view of the fact that, until we know more about the behaviour of individual organs in the light of these conceptions, we cannot estimate the part played by ossification, for instance, in producing these overall results. Murray also afterwards found that the curve Per Pep cent cent. 9 11 13 Incubation age Fig. 92. relating age with oxygen absorbed by the embryo per gm, per day did not decline quite like the carbon dioxide evolution curve, slowly at first, and then quicker and quicker, but was rather S-shaped, the slowest rate occurring at the loth day. His line for this, how- ever, depended for the initial fall exclusively upon one very high point for the 6th day, and this may quite possibly have been wrong, in which case the curve for oxygen consumption would fall with the curve for carbon dioxide 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 Needham, Joseph, 1900-. New York: The MacMillan Co.
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