HRDLICKA ] PHYSICAL ANTHROPOLOGY OF THE LENAPE 25 
regularity or evidence of conformity with the aforementioned general 
rule of increase of the size of the head with stature. The tallest of the 
eight females had one of the smallest heads, and the man with the 
largest brain was not even of average height. However, there is no 
doubt that if the series of skulls was considerably larger, the usual 
progression, showing gradual increase in the size of the brain with 
the height of the body, would be apparent. 
The femoro-cranial index progresses much more regularly than the 
capacity, and shows another well-known fact, also common to all 
human races, namely, that while the absolute size of the brain enlarges 
in proportion to the stature, its relative dimensions with reference to 
stature diminish as the latter increases; so that while the tall man or 
woman may be expected to have an absolutely larger brain than the 
average of his group, relatively to his stature he will have less brain 
matter than the short individuals of the same group. 
The averages in the preceding table are interesting in another 
particular—i. e., the difference in the value of the femoro-cranial index 
in the two sexes. Both the former records of the Louisiana crania 
and those of the Munsee now presented show these indexes to be 
perceptibly lower in the females than in the males. The superiority 
in this respect among the male crania is seen not only in the averages, 
but practically throughout the records, seven of the eight indexes in 
the females being below the minimum of the indexes in the males. 
It seems evident that among the Indians the brain substance in the 
females is not only absolutely smaller than in the males, but is also 
somewhat smaller for each centimeter of stature, so that men of the 
same height as the women would still show an advantage in this 
particular. This advantage is not necessarily connected with men- 
tality, but may be due to the greater muscularity of the males. 
As to the value of the femoro-cranial index in different tribes, we 
can as yet say nothing positive. The indications are that if differ- 
ences exist, they are not of a very pronounced character. 
SIZE AND SHAPE OF THE FACE 
The measurements chosen, as in the writer’s work previously 
cited, are only the most essential. They include the total and upper 
length of face, and the three breadth measurements—the smallest 
breadth of the forehead, the greatest facial breadth in the plane of the 
zygomatic arches, and the breadth at the angles of the lower jaw. 
As to the total facial length (chin-nasion), wherever the teeth were 
worn due allowance for the wear was made on the basis of measure- 
ments on well-preserved teeth of the same sex and in the same group. 
The results, presented in the next table, show that among the 
Munsee the face was of only fair height and that its other dimensions 
were rather subdued for Indians. 
