[35] _United States Immigration Commission Reports_, vol. vi, pp. 544-545, on the subject of "Housing by Employers." See Wood, _The Housing of the Unskilled Wage Earner_, p. 114 ff. [36] United States Bureau of Labor Statistics _Monthly Labor Review_, May, 1917, p. 147, and June, 1919, p. 101. [37] Lusk, _The Science of Nutrition_ (Third Edition), pp. 562, 570. [38] United States Bureau of Labor Statistics _Monthly Labor Review_, vol. ix (July, 1919), p. 4. The analogy is drawn between the sale of food by calorie and the sale of coal by the British thermal unit. [39] See Thomas, _Sex and Society_, chap. vii; Veblen, _Theory of the Leisure Class_, chap. vii; Anthony, _Feminism in Germany and Scandinavia_, chaps. v and vi, "Dress Reform." [40] _The Chicago Standard Budget for Dependent Families_, p. 18. [41] _Ibid._, p. 14. [42] New York daily papers, September 18, 19, 20, 1919. Reports of International Conference of Women Physicians under Auspices of Young Women's Christian Association. [43] See, for example, King, _Lower Living Costs in Cities_. VI THE CARE OF THE CHILDREN The care of the children is the most important of the mother's duties. It cannot be thoroughly done under modern conditions unless the mother has leisure to inform herself about conditions surrounding her children at work and at play, and to keep in touch with their interests, especially as they grow older. It includes caring for their physical wants, bathing them and keeping them clean when they are little, feeding them, providing their clothing, taking care of them when they are sick; it also includes looking after their education and training, choosing the school, seeing that they get to school regularly and on time, following their work at school as it is reported on the monthly report cards, encouraging them to greater efforts when their work is unsatisfactory, praising them when they do well, and, above all, giving them the home training and discipline that they need. It is the mother who can teach the children good habits, forming, as only the home life can form, their standards of right and wrong; it means watching them at their play or seeing that they play in a place that is safe without watching. As they grow older it means a general supervision of their recreation and their companions, judging surrounding influences, having in mind the dangers that lie in the way of the unwary maiden and the perils of the impetuous boy. Times have changed since she was young, and amid a great variety of choice she must decide for her children which are harmless influences and diversions. In the case of the older girls it means the serious problems of clothes, of amusements, of earnings, of prospective mating.