discuss in full extrauterine pregnancy, and Salmuth, Hannseus,
and Bartholinus describe it. From the beginning of the eighteenth
century this subject always demanded the attention and interest of
medical observers. In more modern times, Campbell and
Geoffroy-Saint-Hilaire, who named it "Grossesse Pathologique," have
carefully defined and classified the forms, and to-day every text-book
on obstetrics gives a scientific discussion and classification of the
different forms of extrauterine pregnancy.

The site of the conception is generally the wall of the uterus, the
Fallopian tube, or the ovary, although there are instances of pregnancy
in the vagina, as for example when there is scirrhus of the uterus; and
again, cases supposed to be only extrauterine have been instances
simply of double uterus, with single or concurrent pregnancy. Ross
speaks of a woman of thirty-three who had been married fourteen years,
had borne six children, and who on July 16, 1870, miscarried with twins
of about five months' development. After a week she declared that she
was still pregnant with another child, but as the physician had placed
his hand in the uterine cavity after the abortion, he knew the fetus
must be elsewhere or that no pregnancy existed. We can readily see how
this condition might lead to a diagnosis of extrauterine pregnancy, but
as the patient insisted on a thorough examination, the doctor found by
the stethoscope the presence of a beating fetal heart, and by vaginal
examination a double uterus. On introducing a sound into the new
aperture he discovered that it opened into another cavity; but as the
woman was pregnant in this, he proceeded no further. On October 31st
she was delivered of a female child of full growth. She had menstruated
from this bipartite uterus three times during the period between the
miscarriage of the twins and the birth of the child. Both the mother
and child did well.

In most cases there is rupture of the fetal sac into the abdominal
cavity or the uterus, and the fetus is ejected into this location, from
thence to be removed or carried therein many years; but there are
instances in which the conception has been found in situ, as depicted
in Figure 2. A sturdy woman of thirty was executed on January 16, 1735,
for the murder of her child. It was ascertained that she had passed her
catamenia about the first of the month, and thereafter had sexual
intercourse with one of her fellow-prisoners. On dissect