234 GARSON : HUMAN REMAINS FOUND AT HOWE HILL, DUGGLEBY. 
developed in others. In the case where it is most developed (I), the 
superciliary bosses and the glabella form a continuous ridge across 
the forehead. The orbits appear to be set at about the same angle 
with the horizontal in each case, and their upper margins are thin ; 
in form they are broadened rectangular to nearly square in the 
specimens complete enough to admit of their shapes being determined. 
The nasal spine is small, the lower margins of the nasal openings 
are sharp and well-defined, the outline in profile of the nasal bones 
appears to vary within the outlines of Nos. 1, 2, and 3 of Broca's 
nasal curve. The profile of the upper jaw is straight or nearly so, 
there is therefore no tendency to prognatism. The direction of the 
incisor teeth is vertical. In the majority of cases, the teeth are 
moderately worn, but in one case (I) they are much worn, and in two 
(K and J), they are little worn. The last molar is sometimes absent 
through not being developed. The form of the palate, or rather the 
outline of the upper alveolar arch, is somewhat parabolic. The chin 
is narrow and pointed in the majority of cases, but it is more 
rounded and less pointed in M. 
Measurements. — Turning to the measurements of the skull and 
comparing them, as far as possible, with the characters observed by 
inspection, we find that while some of these do not vary much in the 
two groups, others are markedly different. The measurements of G 
show that in some respects it agrees with those of the first group, but 
in the majority it resembles those of the second, among which it has 
been placed from its general characters. 
The cephalic index of the series ranges from 65*5 to 79'6 ; five 
of the crania are hyperdolichocephalic, one is dolichocephalic, and 
two are mesaticephalic. All of the specimens belonging to the first 
group, and G, belonging to the second group, are hyperdolichocephalic. 
The higher cephalic nidex in the other specimens is due not only to 
their breadth being greater, but also to their length being less than 
those of the first group. The cephalic index of L being considerably 
higher than the others (79*6) is probably due to irregular or pre- 
mature closure of some of the sutures, which has caused abnormal 
bulging of the parietal regions, its biauricular or base breadth being 
only 100 mm., or no less than 20 mm. less than any of the other 
specimens, so that it cannot be considered quite normal, 
