n its mother's thigh while its brother is at the
natural breast. Jenner speaks of a breast on the outer side of the
thigh four inches below the great trochanter. Hare describes a woman of
thirty-seven who secreted normal milk from her axillae. Lee mentions a
woman of thirty-five with four mammae and four nipples; she suckled
with the pectoral and not the axillary breasts. McGillicudy describes a
pair of rudimentary abdominal mammae, and there is another similar case
recorded. Hartung mentions a woman of thirty who while suckling had a
mamma on the left labium majus. It was excised, and microscopic
examination showed its structure to be that of a rudimentary nipple and
mammary gland. Leichtenstern cites a case of a mamma on the left
shoulder nearly under the insertion of the deltoid, and Klob speaks of
an acromial accessory mamma situated on the shoulder over the greatest
prominence of the deltoid. Hall reports the case of a functionally
active supernumerary mamma over the costal cartilage of the 8th rib.
Jussieu speaks of a woman who had three breasts, one of which was
situated on the groin and with which she occasionally suckled; her
mother had three breasts, but they were all situated on the chest.
Saunois details an account of a female who had two supernumerary
breasts on the back. Bartholinus (quoted by Meckel) and Manget also
mention mammae on the back, but Geoffroy-Saint-Hilaire questions their
existence. Martin gives a very clear illustration of a woman with a
supernumerary breast below the natural organ. Sneddon, who has
collected quite a number of cases of polymazia, quotes the case of a
woman who had two swellings in each axilla in which gland-structure was
made out, but with no external openings, and which had no anatomic
connection with the mammary glands proper. Shortly after birth they
varied in size and proportion, as the breasts were full or empty, and
in five weeks all traces of them were lost. Her only married sister
had similar enlargements at her third confinement.

Polymazia sometimes seems to be hereditary. Robert saw a daughter whose
mother was polymastic, and Woodman saw a mother and eldest daughter who
each had three nipples. Lousier mentions a woman wanting a mamma who
transmitted this vice of conformation to her daughter. Handyside says
he knew two brothers in both of whom breasts were wanting.

Supernumerary nipples alone are also seen, as many as five having been
found on the same breast.