. Ciba Foundation colloquia on ageing. Old age; Aging; Animals -- growth & development. 04 05 06 07 PERIOD OF GESTATION IN TENTHS OF TOTAL Fig. 1. Transfer of sodium across unit weight of placenta in unit time in different species. (After Gellhorn and Flexner, 1942.) rats an amount of 59Fe adequate to produce a constant specific activity in the mother which may possibly also have been the maximum saturation. There was a rise in the total iron in the litters and an increasing percentage of labelled Fe was recovered from the litters (Fig. 2). But when the iron/foetal 26 r. 14 Injection Fe59
. Ciba Foundation colloquia on ageing. Old age; Aging; Animals -- growth & development. 04 05 06 07 PERIOD OF GESTATION IN TENTHS OF TOTAL Fig. 1. Transfer of sodium across unit weight of placenta in unit time in different species. (After Gellhorn and Flexner, 1942.) rats an amount of 59Fe adequate to produce a constant specific activity in the mother which may possibly also have been the maximum saturation. There was a rise in the total iron in the litters and an increasing percentage of labelled Fe was recovered from the litters (Fig. 2). But when the iron/foetal 26 r. 14 Injection Fe59 Days Fig. 2. Percentage of labelled iron recovered from litters at varying ages and the number of rats in the litter. Continuous lines indicate upper and lower limits, and broken line the approximate mean recovery curve. Weaning at 21-28 days after birth. (Huggett and Widdas, 1949.). 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 Ciba Foundation; Wolstenholme, G. E. W. (Gordon Ethelbert Ward). Boston, Little, Brown
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Keywords: ., bookcentury1900, bookpublish, booksubjectaging, booksubjectoldage
