REMAINS, FROM ARKANSAS AND LOUISIANA. 191 
iana; this has а bearing on their relatively large external size, as compared with 
the other groups of crania, with only a slightly larger capacity. 
The percental relation of female to male averages of the principal external meas- 
urements of the vault presents considerable likeness in the four localities, and is 
much alike in the separate measurements. Larger numbers of specimens would 
doubtless reduce further some of the irregularities. As already alluded to, these 
sexual indices exceed considerably the similar indices of cranial capacity. This is 
due partly to the relatively great thickness of the female skulls and partly to other 
conditions. It will be of importance to determine these relations with respect to 
other groups of American aborigines as well as to other races. 
THE FACIAL PARTS. 
Facial Dimensions.—In the majority of the Louisiana crania the facial parts 
unfortunately are injured, yet enough remains to show that in this series the face 
is somewhat higher and broader than is the case with the skulls from Boytt's Field, 
Arkansas: it more nearly approaches the specimens from the Menard and Greer 
cemeteries. The relative proportions of the face, 2. e., the facial indices, show much 
similarity in all these groups, as is evident from the table on page 190. Neverthe- 
less, the facial indices, especially the upper, are perceptibly lower in the crania 
from Boytt’s Field than in the others, and in addition the averages of all the facial 
measurements of the skulls from this locality are lower than those of the other 
series. This relative smallness of the face of the former inhabitants of the Boytt's 
Field region was probably a local peculiarity. 
Locality 
Louisiana (a) 
Arkansas (6): 
Menard 
and Greer 
cemeteries 
Arkansas (с): 
Boytt’s Field 
Arkansas (а): 
Drew and 
Mississippi 
counties 
COMPARISON OF FACIAL DIMENSIONS OF MALE SKULLS FROM LOUISIANA AND ARKANSAS 
Number 
i | араш 
Numbe mber | Average diameter | Number | Бекі | 
Av 1 Ау i | Average total 
a facial height ¿e facial height - сы | — д | a | facial index | = | 
ЖЕ а. о nd | 
7 | 12.35 (11.5-13.4)| 10 | 7.55 (7.0-8.0) 9 |142 (184-4.6) 6 | 86 (81.5-90.3) | 8 
| | 
1 o Hyd i PUN 2 eT (14.5-14.6) 1 las | а 
| | 
Eu. | 
9 |1125 (11.98-12.92) | 11 | 7.05 (6.8-7.3) 8 13.85 (18.3-14.3)) 7 | 85 (81.5-90.8) | 8 
| | | 
| | | 
з ls (12.1-18.1)| 1 | 76 (7.0-8.2) | 10 113.95 (13.5-14.6) 2 | 86 (84.2-88.3) 7 
| | 
E | 
| | | | | 
Average upper 
facial index 
(51.4-55.2) 
51 (47.9-55.2) 
54.5 (52.1-60.7) 
(а) Тһе average height of the upper face іп 13 female skulls from Louisiana is 6.88 cm. 
and іп s from Arkansas (4), 7.06 cm. 
The average proportions and the index of the лозе in the several groups of skulls 
from Louisiana and Arkansas bear close resemblance ; nevertheless it will be noticed 
from the following table that there are certain local differences. These are due 
particularly to the unequal average height of the nose, which in turn is owing 
largely to differences in the height of the upper face. Thus the greatest average 
; in 5 from Arkansas (b), 7.35 cm. ; in 5 from Arkansas (с), 6.93 cm. ; 
