NO. I 
NATIVES OF KHARGA OASIS HRDLICKA 
The older adults at Kharga ha-ve in general broader mouths than 
the young adults, and a correspondence is frequently noticeable 
between broad noses and faces and broad mouths. The nose and 
mouth influence each other probably but very little, if at all, but 
both are affected alike by age and breadth of face. 
The Bigonial Diameter of the Lower Jaw 
The greatest lower facial breadth, or diameter bigonial, presents 
in .the Kharga men the very moderate average of 10.3 cm. Weis- 
bach 1 obtained in the Patagonians 13.0; Australians 11.5; Maori 
11.4; northern Slavs and Roumanians 11.3; Tagalogs n.i ; southern 
Chinese, Magyars n.o; Javanese 10.9; Gypsies 10.8; Hawaiians 
10.7; Jews 10.6; Siamese, northern Chinese, Congo negroes 10.4; 
Japanese 10.2; Kaffirs 10.1 ; and Hottentots 9.2 cm. 
The range of variation of the measurement in the Kharga series 
is 3.2 cm., equalling 0.156 per unit of the average, which is not 
above the ordinary. The distribution of the measurement is some- 
what irregular, which is doubtless due to functional causes, or more 
directly, to uneven development of the masseters. 
KHARGA OASIS, MEN: DIAMETER BIGONIAL OF LOWER JAW 
Number of individuals measured: 100. 
Average: 10.3 cm. (ist 50: 10.4; 2d 50: 10.2 cm.) 
Median : 10.4 cm. Modes : 10 and 10.6 cm. 
.Minimum : 8.9 cm. Maximum : 12. 1 cm. 
Table of frequencies: 
B 
c^ 
Tf 
VO 
00 
H 
M 
d 
<^- i 
VO . 
00 . 
g 
o . 
O . 
O . 
. 
HH 
H-l . 
W 
i 
7 s o 
1 o 
?l 
?l 
y 
7 
AS 
to u 
XI 
3J 
S 
AS 
9 s 
M . 
*? 
"? 
t" 
. 
o 
O 
o 

o 
M 
M 
Number and per 
cent of cases 
1 
3 
3 
6 
8 
^^ 
11 
Ji7 
19 
13 
6 
5 
J 
The bigonial diameter bears a direct relation with the greatest 
breadth of the face and an indirect one with that of- the head. But, 
as in the case of the breadth of the forehead, the dimension aug- 
ments within the series at a greater rate than those with which it is 
compared, in other words it is enlarged to some extent through 
other agencies than the correlation with the breadth of the upper face 
. c., pp. 279-280. 
