If our girls are to walk the same streets with their brothers, is there any reason why the soles of their shoes should not be of equal thickness? And yet no man would think of wearing, at any time, except for house slippers, soles as thin as those which many of our girls habitually wear. Boston is much more satisfactory than New York in this particular, if the contents of the merchant's shelves are a safe index of the desires of his customers. This is a matter which has been often spoken of, and yet one which mothers and daughters seem practically to ignore. Girls should be educated to wear clothing suitable to the time and place, and then their "habituated instincts" will lead them to demand and wear shoes of proper thickness. Enough. It cannot be too often repeated that a girl may call for anxiety, and often break in health at the time when she develops into a woman, not because of the special demand for strength made at that time, but because the demands on the general system for strength have been, for twelve or fifteen years, greater than the system could supply. It is not the last straw that breaks the camel's back, but it is all the straws. The mother who has educated her daughter into a healthy appetite for food, as to quality and quantity; who has educated her into a healthy appetite for sleep; who has, through constant watchfulness over her clothing, assured herself that no undue demands were made upon the strength of sustaining muscles, and the constructive and repairing power of the general vital force, has no need of hours of anxiety as to the girl's health, and will find no critical periods in her life, for the hours of anxiety have already been represented by minutes of wise and rational supervision in all the previous years, and need not be spent over again. EXERCISE.