Guadaloupe Fossil Human Skeleton. 363 
foramen, the depressions of the lateral sinus, and the fosse of the 
posterior lobe of the cerebrum, and of the cerebellum. Near the 
outer side of the occipital foramen, is the curved fossa of the lateral 
sinus, usually found just where that conduit is about to emerge from 
the cavity of the cranium. ‘The diploic structure and tables are 
here also quite obvious at the vertical edge of the fragment. 
Next, is the portion which may be taken for either a parietal or 
frontal fragment. 1 think it the latter, because, internally, it wants 
the arborescent features characterizing the lower half of the parietal 
bone, and is equally deficient in traces of the fossa of the longitudinal 
sinus declaratory of the upper; and with respect to uniformity of 
smoothness, and configuration, corresponds more closely with this 
bone than with the other. 
The next is undoubtedly the mental portion of the inferior max- 
illa. This is indicated by its thickness, curvilinear figure, and the 
character of the alveolar processes and sockets; by the triangular 
tubercle at the bottom of the symphisis in front; and the mental 
tubercle and lateral fossa of the right digastric muscle behind; be- 
sides that the alveolar edge is sharp; the sockets, which are six in 
number, are single; and what is considered to be the base exhibits, 
very evidently, the usual close cellular conformation. 
The last is obviously a part of the superior posterior angle of the 
parietal portion. It is the smallest fragment, and needs no particu- 
lar description. 
These relics have been supposed to belong to the head of an in- 
dividual of the Carib race. ‘This is undoubtedly a mistake. The 
anterior posterior diameter is too short, the occipital region too flat, 
and the lateral and vertical developments too full, upon a recon- 
struction of the cranium, to justify such a supposition. The follow- 
ing are the admeasurements, made jointly by Prof. Holbrook and 
myself. From the posterior edge of the occipital foramen to the 
- concavity of the frontal bone behind the frontal sinus, five inches. 
From the same to the anterior superior angle of parietal bone, four 
inches and eight tenths. From the fossa of Sy]vius to the same point, 
four inches and a half. From the center of the petrous ridge to the 
center of the cerebellar fossa, one inch and five tenths; and from the 
same center to the cerebral fossa, or the fossa of the posterior lobe of 
the cerebrum, two inches and one tenth. Compared with the cra- 
nium of a Peruvian, presented to Prof. Holbrook by Dr. Morton, in 
the museum of the Medical College of the state of South Carolina, 
