The health of the mass of educated women is a matter of serious national concern. These women form the heart of the nation, they mould its family life, they create society, they exercise an unbounded influence on the lower classes. If the health of the mother breaks down family happiness is destroyed; so if the health of this class of a people is deteriorated the welfare of the nation is imperilled both in the present and the future. Young parents enter upon the heavy responsibilities of family life in deplorable ignorance of their duties to one another and to their children. As parents, it is their first duty to secure right conditions of health for the infant, for the child, and for youth, until they leave the parental roof. Each age demands a varying set of conditions, which become continually more complicated as the necessities of the mind increase in proportion to the physical wants. The conditions that will keep an infant in perfect health will not suffice to secure the health of the boy or girl of fifteen. As a weak stomach will impair the temper, so a vacant or corrupt mind will injure the body. Comprehensive knowledge is needed to embrace the wants of every age, and such knowledge all parents should possess. In seeking the cause of this destruction and deterioration of life, thus briefly stated, we find it in the universal ignorance or neglect of the Divine laws of human growth. We find this neglect and disobedience equally among rich and poor, learned and unlearned, religious and worldly, in individual life, in business enterprise. The fevers of the poor, the hysteria of the luxurious, the indigestion of the learned, the devastation of our mining districts, equally show contempt for the wonderful organization which God has made--indifference to the conditions which He has clearly laid down as essential to its welfare. One of the most important problems of the present time is how to embody the sanitary knowledge which we possess in the life of the nation so that a higher standard of health may be gained by the present and succeeding generations. The solution of this great problem must be attempted in many directions. It must be sought in the power of legislative action, in the wide-spreading influence of education, and in the strength of social combination.