The diseases of infants and children . ercent, for girls; at 14 years 1 6th Ann. Rep. State Board ofHealth, Wisconsin, 1881, p. 28. 2 Jahrb. f. Kinderheilk., 1901, LIII,53. 3 Loc. cit., 306. DEVELOPMENT 27 lb. (3674) or per cent, for boys and lb. (3402) or percent, for girls. The influence of any illness upon the increase of weight is very decided,especially in infancy. Growth ceases, and weight may even be rapidlylost, depending upon the nature of the disease. There appears to be apositive influence of season upon the growth of children. The investiga-tions of Malling-Hansen
The diseases of infants and children . ercent, for girls; at 14 years 1 6th Ann. Rep. State Board ofHealth, Wisconsin, 1881, p. 28. 2 Jahrb. f. Kinderheilk., 1901, LIII,53. 3 Loc. cit., 306. DEVELOPMENT 27 lb. (3674) or per cent, for boys and lb. (3402) or percent, for girls. The influence of any illness upon the increase of weight is very decided,especially in infancy. Growth ceases, and weight may even be rapidlylost, depending upon the nature of the disease. There appears to be apositive influence of season upon the growth of children. The investiga-tions of Malling-Hansen^ upon children of from 9 to 17 years showed themost rapid increase occurring from August to December. Schmidt-Monard- confirms this for even younger children from the age of 23^^ yearsand even in the 2d year, and Bleyer^ found it true even of the first yearof life. Indeed the influence of the season may extend so far that, asclaimed by Stepanoff,^ children of the school age who were born in summerare larger than those born in Fig. 4.—Balance Scales for Weighing Infants. The importance of weighing children regularly during the first 2 yearsof life, and especially during the 1st year, cannot be over-estimated, sincecessation of gain is often the first sign of illness, or of a lack of sufficientnourishment. The child should be weighed at least weekly, divested ofclothing or dressed and the weight of the clothes subsequently should be used which indicate ounces. Standing spring scaleswith a scoop or basket attached are very convenient, but some form ofbalance scale is more accurate (Fig. 4). For recording the results aweight chart is a great convenience. The illustration (Fig. 5) is a reducedreproduction of one which I have employed for a number of years.^The curve already plotted upon it represents the normal average gainin weight for a healthy breast-bed infant. To economize space the por-tion for the 2d year is narrowed one-half, which necessarily dis
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