In a
woman of the same race the arm is 83, and the leg 120, the hand and
foot remaining the same. In a European skeleton I find the arm to be
80, the leg 117, the hand 26, the foot 35.
Thus the leg is not so different as it looks at first sight, in its
proportion to the spine in the Gorilla and in the Man--being very
slightly shorter than the spine in the former, and between 1/10 and 1/5
longer than the spine in the latter. The foot is longer and the hand
much longer in the Gorilla; but the great difference is caused by the
arms, which are very much longer than the spine in the Gorilla, very
much shorter than the spine in the Man.
The question now arises how are the other Apes related to the Gorilla in
these respects--taking the length of the spine, measured in the same
way, at 100. In an adult Chimpanzee, the arm is only 96, the leg 90,
the hand 43, the foot 39--so that the hand and the leg depart more from
the human proportion and the arm less, while the foot is about the same
as in the Gorilla.
In the Orang, the arms are very much longer than in the Gorilla (122),
while the legs are shorter (88); the foot is longer than the hand (52
and 48), and both are much longer in proportion to the spine.
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