menstruation coexisting. No careful obstetrician will deny
pregnancy solely on the regular occurrence of the menstrual
periods, any more than he would make the diagnosis of pregnancy
from the fact of the suppression of menses. Blake reports an
instance of catamenia and mammary secretion during pregnancy.
Denaux de Breyne mentions a similar case. The child was born by a
face-presentation. De Saint-Moulin cites an instance of the
persistence of menstruation during pregnancy in a woman of
twenty-four, who had never been regular; the child was born at
term. Gelly speaks of a case in which menstruation continued
until the third month of pregnancy, when abortion occurred. Post,
in describing the birth of a two-pound child, mentions that
menstruation had persisted during the mother's pregnancy. Rousset
reports a peculiar case in which menstruation appeared during the
last four months of pregnancy.

There are some cases on record of child-bearing after the
menopause, as, for instance, that of Pearson, of a woman who had
given birth to nine children up to September, 1836; after this
the menses appeared only slightly until July, 1838, when they
ceased entirely. A year and a half after this she was delivered
of her tenth child. Other cases, somewhat similar, will be found
under the discussion of late conception.

Precocious menstruation is seen from birth to nine or ten years.
Of course, menstruation before the third or fourth year is
extremely rare, most of the cases reported before this age being
merely accidental sanguineous discharges from the genitals, not
regularly periodical, and not true catamenia. However, there are
many authentic cases of infantile menstruation on record, which