There are two critical periods in the life of woman one, at puberty; the other, at the menopause. On reaching puberty there is a natural excitability of the sexual system, and unless girls are properly instructed by their parents as to the care of themselves, and the restraint of their impulses and passions, they are led into. many dangers, and sometimes into self-abuse, thereby retarding the true development of womanhood; for all. the life forces at that period are needed for the development of their physical systems to fit them for the performance of the maternal function; and if that development is checked in consequence of abuse, then, as soon as they are called upon to perform this most important function in woman's life, they will suffer. from various weaknesses consequent upon this early abuse, such as prolapsus, spinal weakness, nervous debility, etc., which will render their whole life miserable, if not helpless, and perhaps entail incalculable misery upon their offspring. Another danger is, that the childish mind, on coming into this state of excitability, has no idea of the evil of indulging that passion unless instructed regarding the consequences. Their childish instincts cause them to think this function is a natural one, and they often yield to the solicitations of the opposite sex unless they have been properly taught. At the menopause the ordinary periodical waste of the system ceases, the forces are turned within, and the demand for food lessened; so, unless the appetite is carefully restrained, there will be a clogging of the system, or a surplus of vitality which may result in gout, heart disease, paralysis, trembling palsy, and many other diseases or derangements, according to the function or sign in which they were born. In reality, they have simply completed the first or natural cycle of the generative forces which has relation to the procreation First, misunderstandings; second, incompatibility of chemical and magnetic interchanges; third, excess in sexual indulgence. Misunderstandings arise from difference in thoughts, sensations, and emotions. Being born in different zodiacal or solar signs, they sensate from different parts of the body corresponding to their signs; so that what gives pleasure to one, may give pain to the other, even though the best possible motives prompted the effort. Again, two opposites are usually attracted together by the law of generation. One acting entirely from the intuitive nature is incapable of giving a reason for any course of action. Such persons cannot make themselves pliable to the wishes of others; for intuition is master, and not servant. Another is governed by reason, which is the law nature; and when those of the latter class attempt to dominate, they are apt to demand of the former class reasons for their course of action; and those who are guided by intuitionthough they know they are rightare not often ready with a reason. This is apt to arouse combativeness and produce inharmony. Second, incompatibility of chemical and magnetic elements. Where the husband and wife are too much In young ladies who are taught by their parents to restrain all sexual passion, and live a chaste life till marriage, these special life forces are depolarized and turned towards the brain, so that they cease to have any desires in the other direction, though they may have great sexual power. Young men are not oftenCRITICAL PERIODS IN THE LIFE OF WOMAN.