eitDLi(^KAj SKELETAL REMAINS OP EARLy MAN 231 



dimensions. The zygomse show mascuhne development. Orbital 

 borders dull; interorbital breadth rather above, size of orbits rather 

 below, medium. The naso-frontal suture is patent; the nasal 

 articular surface on the frontal looks nearly down. Nasion depres- 

 sion moderate; nasion itself situated high, a frequent characteristic 

 of Indian skulls in Argentina. 



The supraorbital ridges are well developed, but not excessively so 

 for a male, and extend over the medial two- thirds of the supraorbital 

 border. The glabella is in a slight depression between the ridges. 

 As is frequently the case, there is a shallow depression above the 

 distal parts of the supraorbital ridges; none above the medial parts. 

 The lateral angidar processes are rather stout. 



The forehead is well-arched and quite high, with a single diffuse 

 median convexity; there are no lateral frontal eminences and no crest. 



There exists no post-coronal depression. The sagittal elevation 

 is very moderate and mainly perceptible about the summit, in the 

 usual position. The parietal bones present no features worthy of 

 special notice. 



The temporal regions are not bulging. The temporal crests run 

 at a good distance from the sagittal suture, their nearest approach 

 to the same being about 6 cm. on each side, and are in no way unusual. 



The occiput (including the posterior portion of the parietal region) 

 is slightly uneven, the right side being the larger, but this is prob- 

 ably due in part to defects in repairing the specimen; its prominence 

 is not above medium. The occipital torus is rather pronounced, 

 broad, horizontal, and reaches nearly from side to side of the occipi- 

 tal. Depressions below the crest are ordinary. 



The mastoids are good-sized, masculine; the mastoidal crests are 

 well-marked. 



Serration of sutures rather simple, as usual in Indians. 



Outline of norma superior approximates elHptical; that of norma 

 posterior is pentagonal. 



The face was of medium height and moderate breadth, and in 

 general of a type common among Indians of similar cephaUc form. 



The thickness of the skull is not excessive; the incrustations pre- 

 vent direct measurement. 



Ventrally, there are seen a short and moderately high metopic 

 crest and some impressions of bram convolutions. 



Measurements : ^ 



Vault: cm. 



Diameter antero-posterior 19. 



Diameter lateral maximum 14. 4 



(Owing to the imperfections in the repairing and to the thin crust, each of 

 these measurements should be reduced slightly, perhaps as much as 3 mm.) 



1 The values obtained agree in general fairly closely with those of Lehmann-Nitsche, some differences 

 being due doubtless to unlike allowances for the imperfections of the skull. Measurements that would 

 have to be based principally on estimate are excluded. 



