REMAINS, FROM ARKANSAS AND LOUISIANA. 179 
there are also a few that are more capacious. Only one of the specimens, however, 
сап ђе termed large, namely that of 1670 с.с. capacity. Іп 15 additional Arkansas 
crania іп the National Museum, in which it could be determined. the capacity 
ranges in 9 males from 1360 to 1600 с.с., and in 6 females from 1180 to 1395 с.с. 
The capacity of the skull generally bears а relation to the stature of {һе іпді- 
vidual, and the stature ean be judged approximately from the long-bones, particu- 
larly the humerus and the femur. One or both of the femora аге present in five of 
the males with known skull capacity. Their length and relations to the capacity 
are as follows: 
RELATION OF SKULL CAPACITY TO STATURE 
| 
Bicondyl БЕ | i 'o-crani "x (= с. С, € 
NN Cranial Capacity Lg me pint rigat | "E — prn teen ы 
. individual | of femoral length) 
| 
255.121 1310 | 45.7 | 28.7 
1315 | 43.3 | 30,4 
127 1455 | 2.1 34,6 
124 1480 | 46.0 | 32.2 
141 1670 | 48.2 | 34.6 
Averages 1446 | 45.1 | 32.1 
These interesting data unfortunately apply to too few specimens to be of great 
value, particularly for type comparison. It may be stated, however, that the 
average bicondylar length of the right femur in the white American male of the 
Eastern states approaches 45.0 em., and the cranial capacity 1500 c.c., which would 
give an average femoro-cranial index of about 33.3, a figure slightly higher than 
that in these Indians. 
The average module (mean diameter of the skull), the greatest horizontal cir- 
cumference above the ridges, and the nasion-opisthion arc, all show in both sexes 
slightly lower averages than in whites. The thickness of the parietal bone is not 
excessive, but it will be noticed that it averages slightly more in the females than 
in the males, even if we omit the unusually thick skull No. 255.151, This is not 
general among Indians, although rather thick female crania are met with in all the 
larger Indian skeletal collections. 
The relation in the two sexes, of the average module, and of the circumference 
and antero-posterior arc, is almost identical for the three measurements, being as 
96 (females) to 100 (males) for the module, and as 97 to 100 for both the other 
measurements. 
For capacity, however, the difference in the relation would be larger. 
Facial parts.—It is regrettable that the facial parts of many of the skulls, in- 
cluding nearly all the females, are imperfect or wanting. Nevertheless, those 
that remain show a number of features of considerable interest. In the first place 
the facial measurements, and especially the indices, are considerably alike through- 
out the series, notwithstanding evident diversity in the form of the crania. Sec- 
