The main feature for observation of the upper dental arch is its slant
or prognathism, and conditions in this respect have already been shown
in the main by the measurements. The inspection confirms the fact that
in three of the female skulls the arch must be described as markedly
slanting. In two cases, in both of which the vault of the skull is
artificially deformed, the arch is asymmetric; in one of these,
however, the asymmetry is evidently due to early loss of some of the
teeth. In no case is there any special massiveness of the arch.