There was a case at Riga in 1839 of a robust girl who conceived in February, and in consequence her menses ceased. In June she aborted, but, to her dismay, soon afterward the symptoms of advanced pregnancy appeared, and in November a full-grown child, doubtless the result of the same impregnation as the fetus, was expelled at the fourth month. In 1860 Schuh reported an instance before the Vienna Faculty of Medicine in which a fetus was discharged at the third month of pregnancy and the other twin retained until full term. The abortion was attended with much metrorrhagia, and ten weeks afterward the movements of the other child could be plainly felt and pregnancy continued its course uninterrupted. Bates mentions a twin pregnancy in which an abortion took place at the second month and was followed by a natural birth at full term. Hawkins gives a case of miscarriage, followed by a natural birth at full term; and Newnham cites a similar instance in which there was a miscarriage at the seventh month and a birth at full term. Worms in the Uterus.--Haines speaks of a most curious case--that of a woman who had had a miscarriage three days previous; she suffered intense pain and a fetid discharge. A number of maggots were seen in the vagina, and the next day a mass about the size of an orange came away from the uterus, riddled with holes, and which contained a number of dead maggots, killed by the carbolic acid injection given soon after the miscarriage. The fact seems inexplicable, but after their expulsion the symptoms immediately ameliorated. This case recalls a somewhat similar one given by the older writers, in which a fetus was eaten by a worm. Analogous are those cases spoken of by Bidel of lumbricoides found in the uterus; by Hole, in which maggots were found in the vagina and uterus; and Simpson, in which the abortion was caused by worms in the womb--if the associate symptoms were trustworthy.