Lospichlerus gives an account of a mother carrying twins, extrauterine, for six years. Mounsey of Riga, physician to the army of the Czarina, sent to the Royal Society in 1748 the bones of a fetus that had been extracted from one of the fallopian tubes after a lodgment of thirteen years. Starkey Middleton read the report of a case of a child which had been taken out of the abdomen, having lain there nearly sixteen years, during which time the mother had borne four children. It was argued at this time that boys were conceived on the right side and girls on the left, and in commenting on this Middleton remarks that in this case the woman had three boys and one girl after the right fallopian tube had lost its function. Chester cites the instance of a fetus being retained fifty-two years, the mother not dying until her eightieth year. Margaret Mathew carried a child weighing eight pounds in her abdomen for twenty-six years, and which after death was extracted. Aubrey speaks of a woman aged seventy years unconsciously carrying an extrauterine fetus for many years, which was only discovered postmortem. She had ceased to menstruate at forty and had borne a child at twenty-seven. Watkins speaks of a fetus being retained forty-three years; James, others for twenty-five, thirty, forty-six, and fifty years; Murfee, fifty-five years; Cunningham, forty years; Johnson, forty-four years; Josephi, fifteen years (in the urinary bladder); Craddock, twenty-two years, and da Costa Simoes, twenty-six years. Long Retention of Uterine Pregnancy.--Cases of long retained intrauterine pregnancies are on record and deserve as much consideration as those that were extrauterine. Albosius speaks of a mother carrying a child in an ossified condition in the uterus for twenty-eight years. Cheselden speaks of a case in which a child was carried many years in the uterus, being converted into a clay-like substance, but preserving form and outline. Caldwell mentions the case of a woman who carried an ossified fetus in her uterus for sixty years. Camerer describes the retention of a fetus in the uterus for forty-six years; Stengel, one for ten years, and Storer and Buzzell, for twenty-two months. Hannaeus, in 1686, issued a paper on such a case under the title, "Mater, Infantis Mortui Vivum Sepulchrum," which may be found in French translation.