0
This is a small, thin skull, covered, when I received it, with very long, black hair,
which was removed to make the drawing.
MEASUREMENTS.
Longitudinal diameter, . . . .
Parietal d iam e te r,......................................
Frontal d iam e te r,......................................
Vertical diameter,......................................
Inter-mastoid a rc h ,......................................
Inter-mastoid line, . . . . .
Occipito-frontal arch, . . . .
Horizontal periphery, . . . .
Internal capacity, .
Capacity of the anterior chamber, .
Capacity of the posterior chamber, .
Capacity of the coronal region,
Facial angle, . . . . . .
6.2 inches.
5.4 inches.
4.3 inches.
4.9 inches.
14.6 inches.
3.8 inches.
13.3 inches.
18.5 inches.
74.5 cubic inches.
30. cubic inches.
44.5 cubic inches.
14.5 cubic inches.
71 degrees.
PLATE LVII.
SKULL FROM A TUMULUS IN THE VALLEY OF RIMAC, IN PERU.
The tumulus from which this relic was obtained is about a mile and a half
to the south of Lima. It is nearly two hundred feet in height, and was opened
a few years since by the French consul, in search of antiquities. During the
progress of excavation several skulls were thrown out, four of which were obtained