HRDLIGK A] APPENDIX 108 
depressions are not extensive; they do not extend to the inner table of the 
bones, and had only local effect on the shape of the skull and none perceptible 
on the lowness of the forehead. The extreme front of the skull is somewhat 
asymmetrical, the right side protruding forward more than the left. This 
asymmetry is also marked ventrally, but does not affect the rest of the skull. 
The glabella is very prominent, and the same statement applies to the median 
extremities of the supraorbital ridges. The latter are limited to the median 
three-fifths of the supraorbital space, but owing to the small forward extension 
of the forehead, the remainder of the border on each side shows also a con- 
spicuous projection. Above the glabella and ridges is a depression, behind 
which rises the very limited arch of the forehead. The sagittal region is 
somewhat elevated. Between the vertex and inion the skull shows slight com- 
pression, due probably to cradle-board pressure. 
The specimen is rather small (the greatest length measures about 18.4 em.), 
but as the bones are not thick the capacity was probably in excess of 1,300 ¢. ¢. 
Ventrally the sutures are wholly obliterated, while dorsally most of the 
coronal, a part of the sagittal, and most of what is present of the lambdoid 
appear still open. There is no evidence that the state of the sutures has 
influenced in any way the shape of the skull. 
The temporal ridges are only partially traceable, indicating no strong mus- 
culature. 
The minimum frontal diameter in this skull amounts to only 8.7 e¢m.; the 
frontal maximum to 10.7 em. 
D.—SKULL FROM MOUND NEAR ALTON, ILLINOIS (NO. 242982) 
(Plate xviI, a) 
The specimen is not deformed and, except in a part of the alveolar process, 
shows nothing pathological. It is plainly a masculine skull and belonged to 
an aging individual. The sagittal, median one-third of the lambdoid, and the 
coronal suture below the temporal ridges show, with some of the facial articu- 
lations, advanced senile occlusion. 
It presents pronounced supraorbital ridges (restricted to the median three- 
fifths of the supraorbital border), somewhat less voluminous glabella, and very 
low forehead, with but feeble frontal bend and but a trace of the eminences. 
The sagittal region is only slightly elevated. The ridges and other features 
indicate moderately strong musculature. 
The face shows average (Indian) alveolar prognathism. The teeth are of 
ordinary size; third molars have never erupted (the skull is that of an indi- 
vidual at least 50 years of age; the lower jaw is missing). 
The base shows the same anomaly as no. 228876 (page 101)—a fenestrum 
formed by a narrow bony septum, reaching from the lower part of the external 
pterygoid plate to the sphenoid, externally to the foramen ovale. 
Measurements 
DiamMerersantero-poOsterion maximum =.= =2 22 ess centimeters__ 17.8 
Diameter antero-posterior from ophryon—__-_--——-__--__--~____-=___ does) AA 
Diameter lateral maximum_________ SR ee, Bigs PR POR aA OT oF MISO: 
Cephailicsind 6x22 Sees Ey Speen rete ns 2 edn eh reek Bs 15.8 
iBasion-bregma height==—- 9-222 == a ie ahr op ae eS es centimeters__ 13.4 
Cephalic module_____ SR at SA ee i a ee 14. 90 
