The late distinguished Professor Charles D. Meigs of Philadelphia published a case, which he deems entirely trustworthy, of the prolongation of pregnancy to four hundred and twenty days, or sixty weeks. Dr. Atlee reports two cases, which nearly equaled three hundred and fifty-six days each. Professor Simpson of Edinburgh records, as having occurred in his own practice, cases in which the period reached three hundred and thirty-six, three hundred and thirty-two, three hundred and twenty-four, and three hundred and nineteen days. In the Dublin _Quarterly Journal of Medical Science_ a case of protracted pregnancy is related by Dr. Joynt. The evidence is positive that the minimum duration must have been three hundred and seventeen days, or about six weeks more than the average. Dr. Elsässer found, in one hundred and sixty cases of pregnancy, eleven protracted to periods varying from three hundred to three hundred and eighteen days. In treating of the subject of miscarriage, we mentioned instances, recorded by physicians of skill and probity, proving beyond a shade of doubt that a woman may give birth to a living child long before the expiration of the forty weeks. The Presbytery of Edinburgh, Scotland, some time since decided in favor of the legitimacy of an infant born alive, within twenty-five weeks after marriage, to the Rev. Fergus Jardine. One of the most enlightened countries in Europe has, in view of the facts in reference to the extreme limits of pregnancy, enacted, in the Code Napoléon, that a child born within three hundred days after the departure or death of the husband, or one hundred and eighty days after marriage, shall be considered legitimate. The law further states that a child born after more than three hundred days shall not be necessarily declared a bastard, but its legitimacy may be contested. The Scotch legislation on this subject is very similar to the French. CAUSES OF PROTRACTED PREGNANCY.