M. Taine's very interesting account of the mental development of an infant, translated in the last number of MIND (p. 252), has led me to look over a diary which I kept thirty-seven years ago with respect to one of my own infants. I had excellent opportunities for close observation, and wrote down at once whatever was observed. My chief object was expression, and my notes were used in my book on this subject; but as I attended to some other points, my observations may possibly possess some little interest in comparison with those by M. Taine, and with others which hereafter no doubt will be made. I feel sure, from what I have seen with my own infants, that the period of development of the several faculties will be found to differ considerably in different infants.
During the first seven days various reflex actions, namely sneezing, hickuping, yawning, stretching,
Darwin C. A Biographical Sketch of an Infant. Am J Dis Child. 1977;131(8):909–912. doi:10.1001/archpedi.1977.02120210087019
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