M. L. TiLDESLEY 
221 
The flatness of the nasal bridge in Group A relative to Group C is brought out 
by the absolute values of the simotic and dacryal subtenses (SS and DS), and by 
their ratio to the corresponding chords {SS/SC, DS/DC), the lowest of these index 
dift'erences in either sex being nine times the probable error. The width of the 
bridge from dacryon to dacryon (DC) is much greater in Group A, being six to 
TABLE II. Difference between Mean Characters of Burmese Grotvp A 
{Burmans) and Group C (Karens?)*. 
Males A 
-C 
Females A-C 
Males A 
-C 
Females A-C 
35-3±351 
+ 
36-5 ±25-4 
- 0-5 ± 
0-6 
0-4 ± 0-3 
W. in §rs. 
+ 78-8±33-l 
+ 105-4 ±18-0 
O^R 
- 0-6 ± 
0-6 
+ 
0-8 ± 0-4 
F 
3-l± 
1-6 
2-9 ± 
1-2 
0„L 
- 0-9 ± 
0-6 
+ 
l-4± 0-4 
L' 
ID 
O'O it 
1 .9 
1 \i 
0, 
^1 
- 0-l± 
1-0 
+ 
0-3± 0-6 
Ij 
3-2 ± 
1-5 
3-7 ± 
11 
- 0-8 ± 
10 
0-1 ± 0-9 
B 
+ 
3-3 ± 
1-2 
+ 
7-4± 
0-9 
- l-0± 
10 
0-1 ± 0-7 
B' 
+ 
3-9± 
1-2 
+ 
2-0± 
0-8 
GL 
+ 0-7 ± 
1-3 
+ 
l-5± 0-9 
E 
3-3± 
1-4 
+ 
l-5± 
0-9 
fml 
- 0-6± 
0-7 
0-4 ± 0-5 
H' 
3-l± 
1-4 
+ 
10± 
0-9 
fmb 
- 0-1 ± 
0-5 
0-4± 0-5 
OH 
+ 
0-8 ± 
1-2 
+ 
l-6± 
0-8 
Oc. I. 
0-0± 
0-6t 
+ 
2-7 ± 0-6t 
LB 
2-0± 
1-3 
l-8± 
0-9 
100 BjU 
100 HjU 
+ 3-0 ± 
0-7 
+ 
6-5 ± 0-4 
Q 
Q' 
+ 
5-9± 
2-6 
+ 
8-4 ± 
2-3 
- 0-5 ± 
0-7 
+ 
2-1 ± 0-5 
+ 
6-4 ± 
2-6 
+ 
9-9 ± 
1-6 
100 BjL 
+ 3-4 ± 
0-7 
+ 
6-2 ± 0-6 
s 
3-7 ± 
31 
0-7 ± 
2-5 
100 HjL 
- 0-4± 
0-7 
+ 
2-4± 0-6 
8, 
+ 
0-7 ± 
1-4 
0-7 ± 
1-2 
100 BjH 
+ 4-8 ± 
1-2 
+ 
4-8 ± 0-9 
+ 
l-5± 
2-0 
+ 
0-7 ± 
1-4 
100 (B-H)IL 
+ 3-9 ± 
0-7 
+ 
3 0 ± 0-5 
5-8 ± 
2-2 
0-8 ± 
1-7 
100 G'H/OB 
- 9-2 ± 
1-3 
l-6± 0-9 
5-0 ± 
1-5 
+ 
1-4 dz 
1-2 
100 NB/NHR 
+ 6-4 ± 
1-2 
+ 
2-5± 0-8 
u 
+ 
2-6 ± 
3-4 
+ 
6-5 ± 
2-2 
100 NB/NHL 
+ 6-4± 
1-2 
+ 
2-2± 1-0 
PH 
0-2 ± 
0-8 
+ 
0-5 ± 
0-7 
100 OJO^R 
- l-2± 
1-4 
+ 
2-5± 1-2 
O'H 
31 ± 
11 
+ 
2-l± 
0-9 
100 OJO^L 
- l-5± 
1-4 
+ 
4-Odz 1-2 
OB 
+ 
7-6± 
1-4 
+ 
4-9 ± 
0-9 
100 GJG^ 
- l-5± 
2-0 
2-5± 1-1 
J 
+ 
7-3 ± 
1-4 
+ 
8-0± 
1-2 
\00fmb/fml 
+ 0-9± 
1-8 
0-2± 1-2 
NHR 
l-7± 
0-8 
+ 
3-2 ± 
0-6 
100 DS/DC 
-16-5± 
1-7 
15-2± 1-2 
NHL 
1-7 ± 
0-8 
+ 
3-3± 
0-7 
100 ss/sc 
-21-3± 
2-2 
18-7± 2-1 
NB 
4- 
2-6 ± 
0-5 
+ 
2-8± 
0-4 
N /. 
+ 2°-4±l°-0 
+ r-7±0°-6 
BS 
l-3± 
0-4 
l-8± 
0-3 
A L 
- 0°-7±r-2 
3°-l±0°-5 
DC 
+ 
4-1 ± 
0-7 
+ 
21 ± 
0-3 
Bi 
- l°-9±0°-8 
+ l°-6±0°-5 
+ 2°-3±0°-5 
DA 
+ 
l-9± 
1-3 
0-9± 
0-7 
»2 
+ 2°-6±l°-l 
SS 
0-6 ± 
0-2 
M± 
0-2 
^1 
-4°-5±0°-9 
0°-8±0°-4 
sc 
+ 
l-8± 
0-6 
+ 
0-7 ± 
0-5 
P/ 
+ 2°-0±0°-8 
0°-6±0°-5 
O^R 
0-2 ± 
0-6 
0-2± 
0-3 
* Probable errors only apjjroximate. 
t The standard deviation for Oc. I. varies very markedly in different races (see Biomeiriha, Vol. viu. 
p. 324) being nearly three times as great in the Negro as in the English. I have used the small standard 
deviation of the English in writing down tlie probable error. If I had used that of the Cxaboon series, 
I should have got ±1-8 for (J, ±1-6 for 
seven times the probable error; the width of the nasal bones themselves [SC) is 
not so emphatically greater, but as was pointed out in K. V. Riley's and J. Bell's 
study of the Nasal Bridge*, a physiognomic factor such as the whole bridge of the 
nose is probably of much more importance from the evolutionary point of view 
than a simple anatomical unit (such as the nasal bones), which forms only one 
part of it. 
* Biomclrika, Vol. ix. p. 423. 
