NO. I 
NATIVES OF KHARGA OASIS HRDLICKA 
43 
KHARGA OASIS, MEN: DIAMETER ANTERO-POSTERIOR OF MAXIMUM HEAD 
Number of individuals measured : I5O. 1 
Average: 18.9 cm. 2 (ist 50: 19.0; 2d 50: 18.8; 3d 50: 18.9 cm.) 
Median : 18.9 cm. Mode : 19.0 cm. 
Minimum : J/.6 cm. Maximum : 204 cm. 
Table of frequencies: 
00 
01 
<t 
VO 
00 
N 
Tt 
vo 
00 
M 
* 
B 
IN, 
00 
00 
00 
00 
00 
o\ 
o\ 
0\ 
a 
ON 
p 
8 
8 
VO 
iLE 
-g 
~ 6 
1G 
toS 
tLe 
A.E 
JL 5 
<t>& 
4>E 
t^E 
o>S 
iE 
<!oS 
ts. 
lx U 
tx U 
00 
00 
00 
00 
00* 
d\ 
0\ 
o\ 
d\ 
ON 
8 
8 
Number of 
cases .... 
I 
3 
3 
8 
10 
22 
22 
30 
22 
Q 
9 
4 
5 
i 
i 
Per cent... 
0.7 
2.0 
2.0 
5.3 
6.7 
14.7 
14.7 
20.0 

d. a 
6.0 
2.7 
3.3 
0.7 
0.7 
1 Includes no deformed or pathological heads ; and the same applies to the 
other skull measurements. 
a Probable error = 0.028 ; standard deviation, <r, = 0.5054, 0.020 ; co- 
efficient of variability, C, = 2.674, 0.104. 
Breadth of Head 
The greatest breadth of the head gives the moderate mean of 14.4 
cm. It varies to the extent of 25 mm., or 0.088 per each cm. of the 
average, hence slightly more than the length ; the curve of distribu- 
tion, however (fig. 4), though quite shouldered, is unusually solid. 
KHARGA OASIS, MEN: DIAMETER LATERAL MAXIMUM OF HEAD 
Number of individuals measured : 150. 
Average: 14.14cm. 1 (ist 50: 14.14; 2d 50: 14.06; 3d 50: 14.22 cm.) 
Median: 14.2 cm. Mode: i^cm. 
Minimum : 12.8 cm. Maximum : 15.5 cm. 
Table of frequencies: 
ON 
CO 
to 
K 
ON 
CO 
to 
^ 
ON 
u 
CO 
01 
M 
CO 
CO . 
CO . 
CO . 
4> 
^t . 
Tf . 
rf . 
10 . 
( 
CO 
M 
1-1 5 
N O 
TS 
"fr 
** 
ss 
"* 
vi 

1 
SI 
N 
CO 
CO 
CO 
co 
CO 
Tj- 
^- 
Tf 
^- 
^ 
to 
l ~ l 
Number of cases. 
I 
2 
7 
13 
IQ 
25 
27 
28 
14 
5 
4 
2 
Per cent 
0.7 
2.0 
1.3 
4.7 
8.7 
12.7 
16.7 
18.0 
18.7 
9.J 
J.^ 
2.7 
1 Probable error = dr 0.025 ; standard deviation, <r, = 0.4507, 0.018 ; co- 
efficient of variability, C, = 3.196, 0.124. 
Both the length and the breadth of the head augment, as will be 
seen in the next table, with the height of the body, and they augment 
at nearly the same ratio. The latter fact indicates that it is in 
