MMM.NUIX 108 



are not extensive; they .|. not extend to the Inner table of tin- 



Nines mid hail only lix-itl 'ffect mi the Khupe of the uteull anil in |H-p-eptllile 



on tin- lowness of tin- forehead. Tin- extre front of tin- sknll is somewhat 



asymmetrical, the right side protruding forward more than tin- l-ft. This 

 asymmetry Is also market vcntrally. Imt <|<M>M not affct the r-st of the skull. 



Tin- gliilN-lla Is v-ry prominent, and the same statement applies to the m<llan 

 \tn-miii.". of tin- supraorbltal riL'.-s. The latter are limited to the median 

 thrce-tiftlis of tin- snpraorliltal spav, hut owing to tin- small forward extension 

 of tin- forehead, the remainder of the horder on earh Hide shows also a con- 

 spicuous projection. AlMve the ulaU-lla and rldgex Is a depreMHlon. behind 

 wlili-h rlm>H the very llmitiil areh of the forehead. The wiglttal n-ylon IN 

 Noinewhat elevated. Itetwi-en the vertex and lulon the skull shows slight eom- 

 prewlon. due proliahly to t-radle-lNiard pressure. 



The 8|MK-lmen Is rather small (the greatest length measures about 1H.4 cm.). 

 l>nt as the bones are not thick the capacity was probably In excess of 1.300 c. c. 



Vent rally the sutures are wholly obliterated, while dorsally most of tho 

 coronal, a part of the sagittal, and most of what is present of the lambdoid 

 appear still open. There Is uo evidence that the state of the sutures ban 

 Influenced in any way the sha|>e of the skull. 



The tem|M>ral ridges are only partially traceable. Indicating no strong mus- 

 culature. 



The minimum frontal diameter in this skull amounts to only N.T cm.; the 

 frontal maximum to 10.7 cm. 



J). SKfLL FROM MOUND NEAR ALTON, ILLINOIS (NO. tM'2982) 



(Plate xvn. 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 lielonged to 

 an aging individual. The sagittal, median one-third of the lambdoid. and the 

 coronal suture below the teni|K>ral ridges show, with some of the facial articu- 

 lations, advanced senile occlusion. 



It present* pronounced supraorbital ridges (restricted to the median three- 

 fifths of the supraorbital border), somewhat less voluminous glabclla. 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 feature's 

 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 ."< years of age; the lower Jaw is missing). 



The base shows the same anomaly as no. 22887(1 (page 101) a fenestrum 

 formed by a narrow bony septum, reaching from the lower part of the external 

 pteryRold plate to the sphenoid, externally to the foramen ovale. 



Diameter antero-posterior maximum . centimeters 17.8 



Diameter antero-posterlor from ophryon do 17.4 



Diameter lateral maximum do 13.5 



Cephalic Index 75.8 



Basion-bregma height centimeters.. 13.4 



Cephalic module. 14.00 



