THE PILTDOWN MANDIBLE 
447 
as in fig. i66. A mandible with distinct anthropoid 
characters and of very massive proportions is thus 
obtained. A minute examination leads me to believe 
that at one point the fragment actually does reach the 
middle line. 
If, on the other hand, we suppose, and I think we are 
obliged to accept this supposition, that there is present 
in the right half of the Piltdown mandible a point which 
actually reaches and slightly crosses the middle line of 
the chin, then we cannot arrange the teeth in such a way 
as to make the two rows of teeth parallel as in anthropoids 
(see fig. 1 66). As regards the widths between the 
Fig. i66. — A. The original reconstruction of the mandible of Eoanthropus, 
viewed at right angles to the plane of the molar teeth. B. Similar view of a 
reconstruction by the Author. 
condyles and the coronoid processes, the reconstructions 
shown in figs. i66, A and B, agree. It may be said that 
both have been arranged and spaced so as to correspond 
to the width of the skull. To a certain extent this is 
true, but if an unwarrantable presumption had been made 
in giving such a width to the mandible, then we should 
probably have obtained an abnormal relationship between 
condylar and coronoid processes. On the other hand, 
the relations between these processes are such as are met 
with in primitive types of man. The coronoid process 
must hold a definite relationship to the zygomatic arch. 
The bicoronoid width is less by 30 or 2^ "^"^- than the 
width between the zygomatic arches in all forms of 
