242 
A First Study of the Burmese Skull 
in the Burman, and about the mouth in the Malayan, would serve to mark a dis- 
tinct difference between the appearance of the two races. 
Finally, we find that the foramen magnum is significantly larger in our male 
Burman skull, both longer and broader. 
In one point only do the females of the two races show a significant difference 
that is not confirmed by the data for the males. The Burman women have rather 
narrower heads than the Malayan, both as to maximum breadth (B) and breadth 
of forehead (B'). 
Burmans and Chinese. The slenderness of our data for $ Chinese makes it idle 
to use them for detailed comparison with the Burmans. I will therefore confine 
myself to a consideration of racial difi:erences as shown by the males of the two 
series, pausing, however, to remark that the ? figures, for the Httle they are worth, 
are in quite good agreement as to the main racial characters. 
As in the case of the Malayans, so with the Chinese, one is struck by the number 
of characters in which no significant difference is indicated between the two races. 
In the main proportions of the skull, however, the Chinaman is more markedly 
differentiated from the Burman: his skull is both longer (L) and narrower (B), 
the effect of both differences being to bring the Chinaman within the mesocephalic 
category (B/L) and to make his skull capacity somewhat greater. In height of 
skull (H) as also in auricular height (OH) there is no significant difference between 
the two. Taking these main linear measurements into consideration, we are not 
surprised to find a shorter transverse arc {Q') in the Chinaman, and with this a 
longer sagittal arc (S), whose greater length is due to greater occipital develop- 
ment: the distance from nasion to lambda (S-^ + S2) is identical in the two means; 
from lambda to opisthion is considerably greater in the Chinese, whether arc- 
length (^3) or chord-length (S^') be taken. Unfortunately, we have not the data 
for calculating the occipital indices for the Chinese, to compare with those of the 
Burmans. 
Turning now to the facial characters, we find the Chinese have definitely smaller 
orbits, both as to width (O^') and height (O2), the proportions, however, {O^jO^ ), 
remaining approximately the same. 
The great zygomatic breadth which was found among the Burmans is here re- 
duced, though not to a very large extent, the degree of difference being about 
three times its probable error. The breadth of the upper maxillary {GB) is reduced 
in about the same proportion ; and, height of face remaining practically unchanged, 
the upper-face index (G'HjGB) undergoes a similar reduction. 
The width of nose (NB) is, however, reduced to a much greater extent, and 
since the height again is not changed significantly, the proportions of the nose 
{NB/NH) bring the Chinese into the middle nasal category, in contrast to the 
platyrhine Burmans. In the remaining features of which our data supply us with 
a measure — palate, foramen, etc. — we find no racial divergence indicated that may 
not be accounted for by random sampling. 
