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The author gives an historical résumé of the study of growth and development. He divides the history of the subject into two main periods: the one of mass investigation in which many children belonging to different groups were measured and tables computed from the average results, and the new period in which the growth of the same individual is studied. The author points out the inaccuracies and difficulties accompanying the study of growth in children when the measurement is taken by more than one person. He also points out the difference in the weight of the child at various periods of the day, the difference amounting sometimes to between 150 and 500 Gm. in infants and 700 Gm. in older children. The author also speaks of the inaccuracy of weighing children with their clothes on. Some of his results are as follows:
The difference in growth in the two sexes
DAS WACHSTUM DAS KINDES. Am J Dis Child. 1927;33(2):360–361. doi:10.1001/archpedi.1927.04130140180021
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