494 
THE ANTIQUITY OF MAN 
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The first point which impresses the anatomist, when he 
examines such a series, is that the basal axis in the orang 
— or in the skull of any large anthropoid ape — is as long 
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Orang 
riagnu 
Fig, 1 86. — A series of skulls laid open longitudinally to show the parts forming 
the base or floor of the cranial cavity. Both external and internal auditory 
meatuses are shown: Piltdown I., from the reconstruction by the writer; 
riltdown II., from Dr Smith Woodward's reconstruction — further explanation 
in the text. 
as in the human skull, notwithstanding the fact that the 
human brain capacity is more than three times that of the 
ape. In the evolution of the higher primates the length 
of the basi-cranial axis or floor of the brain chamber 
remained nearly constant as regards length. In the orang 
