There is a possibility that this is merely a
duplication of the account of the preceding case with a slight
anachronism as to the time of death.
At a foundling hospital in St. Petersburg there were born two
living girls, in good health, joined by the heads. They were so
united that the nose of one, if prolonged, would strike the ear
of the other; they had perfectly independent existences, but
their vascular systems had evident connection.
Through extra mobility of their necks they could really lie in a
straight line, one sleeping on the side and the other on the
back. There is a report a of two girls joined at their vertices,
who survived their birth. With the exception of this junction
they were well formed and independent in existence. There was no
communication of the cranial cavities, but simply fusion of the
cranial bones covered by superficial fascia and skin. Daubenton
has seen a case of union at the occiput, but further details are
not quoted.
CLASS IV.--The next class to be considered is that in which the
individuals are separate and well formed, except that the point
of fusion is a common part, eliminating their individual
components in this location. The pygopagous twins belong in this
section.
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