Now, in consequence of those changes which tend to occur in the vessels and cells of the brain when a person becomes insane, if there were existing any such functional uterine lesions as I have referred to, there would at once arise a tendency to recovery from them; the monthly congestions generally disappear, and such passive congestions as may have long existed would also tend to pass away. An inflamed, or irritable, or ulcerated neck would, in the absence of the usual physiological activities of the organ, have a tendency toward recovery, except in some few rare cases; and by the removal of congestions there would exist little if any cause for displacements. This may be said to be mere theory, but it happens to be certainly in accordance with the experience of those psychologists who have studied the tendencies and conditions of the uterus during periods of insanity. In an experience extending over many years and embracing many cases, the number of the above-named uterine diseases found by me could almost, if not quite, be counted on my fingers. While, therefore, such diseases of different kinds and degrees may, and generally do, co-exist with general debility of the nervous system, they are rarely found to be, and probably seldom are sufficient in themselves, as causes of insanity, though they may sometimes be allied with other and more potent influences in its production. I may add that similar conditions of the female nervous system not unfrequently arise among the married, when persons long live in the relations of marriage, and yet without its natural results in the way of a number of children, especially if, as is almost always the case, improper measures are used to prevent the increase of the family.