AN EXPERIMENT IN RECONSTRUCTION 363 
mm. ; (2) the Piltdown skull is actually the wider and 
the higher, but the extra width and height are due to the 
greater thickness of the bones. In the dimensions of 
the brain chamber they are nearly alike. A third point 
of difference must be noted. As in anthropoid skulls, 
the petrous part of the temporal bone descends as it 
approaches the middle line (see figs. 120 and 127), 
whereas in modern skulls this process is nearly hori- 
zontally placed so far as concerns its upper border. 
It is clear, however, that in shape of the bones and 
PILTDOWN RECONSTRUCTION 
TEST RECONSTRUCTION 
Fig. 128,— Reconstructions of the Piltdown and test skulls viewed from 
behind, to show the application and fit of the occipital fragments. 
formation of the skull, Piltdown and modern man are 
framed on identical lines. 
We now pass on to another stage of the reconstruction, 
illustrated by fig. 128. The first step consisted in 
shaping the right and left parietal regions ; the second 
of completing the left half of the cranium by applying 
the temporal bone, and, as I ought to have added in the 
previous paragraph, to the right half also — the missing 
right temporal bone being replaced by modelling a 
duplicate of the left temporal bone. In the third stage, 
the right and left halves of the skull are brought into 
apposition, leaving a wide, gaping space in the hinder 
wall to be filled by the occipital fragment. In fig. 128 
