The Madisonville Pre-Historic Cemetery. 245 
Well developed (3 mm. and over in length).......... 6.48 
Eacimentary (less than 3mm.).................5...4: 33 
PN He ee ee be ee ell 57 
TOBE cs saben a ap eee 138 
The nationalities of these crania can not be ascertained, but it is 
reasonable to assume that a considerable proportion of them are from 
negroes and mulattoes. 
This process is probably a more or less constant feature in American 
aboriginal crania generally, and it seems somewhat remarkable that so 
acute an observer as Morton should have overlooked it in his ex- 
tensive craniological investigations; such, however, appears to have 
been the case, as no mention is made of it in his elaborate work, 
entitled ‘“Crania Americana,” although well-marked examples are 
figured in Plates 116 (Peruvian), 12 (Orinoco Indian ), 15 ( Botocudo), 
17 and 18 (Mexican ), 19, 20, 23, 25, 28, 30, 31, 37, 39, 41 and 47 (the 
last eleven all North American Indian), 
Peculiarities of the Cavities. 
The orbits are, to the eye, noticeable for their marked angularity, 
and for their great width as compared witb their height, but as no 
series of measurements of these cavities in other races is at hand, it 
is impossible to institute a comparative study of this feature at present. 
As regards the nasal cavities these do not present, to the eye, any 
noticeable variation in size as compared with those of Caucasian skulls, 
but no details of measurement have yet been made on this point. 
The external auditory meatus in these crania is generally elliptical in 
form, its long diameter extending vertically or nearly so. Bony out- 
growths or tumors are observable near the outer opening of this canal 
in five of the 83 crania examined. In three of these instances the ex- 
ostoses are limited to one side; in the other two they occur in both ears. 
In one skull the meatus is so obstructed by these growths that its 
lumen is quite obliterated on one side, and nearly so on the other. 
With respect to the other openings of the skull, mention may be 
made here of a quite general narrowing of the spheno-mazillary fissure, 
due to approximation of the orbital process of the superior maxilla 
and the orbital surface of the great wing of the sphenoid ; these sur- 
faces even articulating slightly in some instances as noted further on 
under head of sutural peculiarities. 
(4.) SururAL PECULIARITIES, INCLUDING WorRMIAN Bones. 
Persistent Frontal Suture. , 
In one skull, not yet measured, and consequently not included in the 
