Abstract
RECENTLY, some reports have appeared suggesting the existence of an embryonic human haemoglobin which shows slight differences as compared with the fœtal haemoglobin of the newborn child. Using an alkali denaturation technique, Drescher and Kunzer1 and Allison2, for example, obtained evidence that the haemoglobin present in early fœtal life is different from the fœtal and adult haemoglobin types. Recent investigations of Halbrecht and Klibanski3 have shown the existence of an embryonic human haemoglobin which migrates more slowly in paper electrophoresis than the fœtal haemoglobin from the cord blood of a newborn child. Studying the problem of fœtal haemoglobin in newborn goats we obtained evidence that in this animal also two different fœtal haemoglobins occur, which, however, are still present after birth.
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