Dynamics, according to Webster, are "the moral as well as the physical forces, and the laws which relate to them," hence dynamic pubetry in city children, for of country children I know but little. My whole life has been a city life; my practice largely with city children, and I have come to know only too well some of the penalties which they pay for their urban existence, especially about the time of puberty; so much so that I have come to dread the time of their blossoming into manhood or womanhood under our present school system. It should be, for the child's highest possibilities a time of sunshine, singing birds and spiritual bloom.
What is the actual condition of the average city child especially the girl, at this time. Haven't most of us in mind more than one case where one year ago the girl had the normal appetite,