. Chemical embryology. Embryology. SECT. 2] AND WEIGHT 399 of the epithelium of the foetal lung is, however, of greater interest i W = At^w + Bfiw + Ctw + Dw, where w is the total weight of the lung at the time in question. But here the number of arbitrary constants is so large that we reach the point where the question naturally arises whether an empirical /q^ 0,1 p. 7 8 3 10 i1 12 13 1'^â 15 16 17 18 19 20 21 Fig. 42. formula is worth looking for at all. The more complicated it is, the less valuable it is, in view of the fact that, in any case, it is not intended to give us an idea of the ba
. Chemical embryology. Embryology. SECT. 2] AND WEIGHT 399 of the epithelium of the foetal lung is, however, of greater interest i W = At^w + Bfiw + Ctw + Dw, where w is the total weight of the lung at the time in question. But here the number of arbitrary constants is so large that we reach the point where the question naturally arises whether an empirical /q^ 0,1 p. 7 8 3 10 i1 12 13 1'^â 15 16 17 18 19 20 21 Fig. 42. formula is worth looking for at all. The more complicated it is, the less valuable it is, in view of the fact that, in any case, it is not intended to give us an idea of the basic factors underlying the process. 2-5. Percentage Growth-rate and the Mitotic Index We have so far been examining the results of those investigators who have taken the curves obtained by simply plotting the weight of the embryo each day during development against the time, and who have endeavoured to find a correct mathematical expression for them without a preconceived theory. We have now to consider. 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.
Size: 1673px × 1494px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookpublishernewyorkthem, booksubjectembryology
