128 
A Study of the Crania of the Moriori 
the "auricular line" is capable of sufficiently close definition*. At any rate tlie 
transverse contours need clearer determination at their lower terminals. In further 
work it might be valuable to place upon them the projections of the basion, 
suborbital and alveolar points. 
I have not taken directly the interauricular breadth of my Moriori skulls. 
Read off from the transverse contours, I find: c?s, 125-2, and $s, 117-6, which 
agree fairly well with Scott's measurements, namely cjs, 126-8, and $s, 118-5, 
although mine for both sexes are consistently less. 
I made an attempt to ascertain the circumferences from the contours and found : 
Circumference 
Male 
Female 
By Tape 
From Contour 
By Tape 
From Contour 
Transverse: Q 
316-1 
300-1 (316 1) 
3100 
297-3(309-6) 
Horizontal: U 
522-8 
522 0 
502-6 
501-0 
Sagittal: S-^ 
126-0 
125-7 
121-4 
121-6 
Sagittal: S<^ 
122-4 
122-9 
117-4 
117-4 
Sagittal: 
121-0 
118-9 
1160 
110-0 
Sagittal : 8 = S-^ + 8^ + 
369-4 
367-5 
354-8 
349-0 
After the contour measurements for Q are placed in brackets the results which 
would be reached by adding to the contour arc tivice the difference in the auricular 
heights. The agreement is then very close, showing that the divergence is solely 
due to difference in position of the auricular line and not to shape of contour. 
The results on the whole are fairly close ; the occipital arc is the worst, and I have 
possibly not accentuated sufficiently the ridges of the occipital and inionic regions f. 
I now give (Table VI) a number of other characters which can be read off the 
type sagittal contour with comparison of their measured values. On the whole 
the agreement is not bad. Indeed it is sufficiently good to suggest that with the 
experience now gained an improved technique would enable the sagittal type 
section to be directly used as a means of determining the customary racial 
characters of the skull, or that at all events this section would serve as a valuable 
control method for verifying the mean values determined by direct measurement 
and arithmetic. The measurements of greatest divergence are : 
(i) The foraminal length. The type contour exaggerates it by 2 mm. about 
for men and 4 mm. for women. But the draughtsman has plotted in the case 
of the female skull the opisthion with an abscissa of 44-6 instead of 46-6 mm. from 
the gamma. Clearly the error observed in the occipital arcs is largely due to this 
displacement of the opisthion 2 mm. in the male and 4 mm. (2 of which are by 
* It is proposed to foUow this matter up by actually continuing the tracing of the transverse section 
into the auditory meatus to the limit of the Klaatsch tracer's possibihties and comparing with the 
craniophor auricular heights. 
f See, however, the remarks later on this point. 
