_Nervous Derangements._--The changes produced in the minds and feelings of pregnant females are sometimes of the most extraordinary character. Individuals who possess, ordinarily, the most agreeable tempers, and the most amiable dispositions, will become peevish and fretful, and often even violently passionate and malicious. Some have even been known to have a disposition to commit various crimes, of which they had the greatest horror in their natural state. Others, on the contrary, who are usually ill-tempered and unhappy, attain a charming tenderness of manner, and a most pleasing serenity of mind. Their likings and dislikings also change very much, so that their most valued friends will become hateful to them, and those whom they habitually dislike will seem endowed with every loveable quality. Some will become perfect misanthropes, or weep and fret without intermission, while others will exhibit the most reckless and boisterous gaiety. I have known some much disposed to study while pregnant, and others who would draw, or paint, most excellently, though at other times they were but indifferent artists. In short, it is impossible to denote half the singular changes of this kind that are thus produced. Suffice it to say that, when well marked, they are strong presumptive signs of pregnancy, especially when coming in connection with other evidences. It must be remembered however, that hysteria, and some other uterine diseases, are often accompanied by similar changes. _Alteration in the appearance of the Breast._--The direct, and sympathetic connection between the womb and the breast is so great that pregnancy usually causes corresponding changes in both, though not always. In most cases however, the breasts swell, and become painful. The nipple becomes elevated, and the circle around it assumes a dark brown color, and is dotted with small tubercles, from which a thin watery liquor may often be pressed. The nipple will also enlarge, or become erect on being rubbed, and, as gestation advances, milk may be forced from it. Most of these signs however, may be wanting in pregnancy, and may arise independent of it. Chronic inflammation, and other diseases of the womb, will frequently produce them, as may be seen in my "Diseases of Woman." _Marriage_ alone frequently causes such symptoms, particularly in certain temperaments, and deranged menstruation will frequently produce them.