526 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1913. 



than any of the other Imown lower jaws dating from the Moiisterian 

 period ; and the same is true of the teeth which, though considerably 

 worn, were evidently much like human teeth of to-day. 



The outline of the two skulls when viewed from above is a long 

 ovoid in No. 1, a shorter ovoid in No. 2 (fig. 6). The principal di- 

 mensions of the two specimens as secured by the writer are as 

 follows : 



No. 1. No. 2. 



Cm. Cm. 



Length, maximum, from glabella 20.3 20 ( ?) 



Length from ophryon 18.8 18.6 



Breadth maximum 14.7 15.4 



Cephalic index 12. J^ '77 



Diameter frontal minimum 10.3 10.9 



Nasion bregma diameter 10.6 (?) 



Diameter bregma-lambda 11.3 10.8 



Mm. Mm. 

 Thickness of the left parietal along and 1 cm. above the squa- 

 mous suture 6to8 5to8 



Thickness of the frontal at the eminences 9 8 



Cm. Cm. 



Height of lower jaw at symphisis 3.55 



Thickness at symphisis (excluding genial tubercle) 1.3 



Thickness at second molar 1.5 "1.4 



Maximum thickness (opposite third molar) 1.7 1.6 



A careful consideration of the evidence presented by the two 

 crania leads the writer to a slightly modified conclusion from the one 

 generally accepted. The specimens are justly classified with the 

 Homo neanderthalensis ; but the characteristics of the lower jaw, the 

 rising sagittal region in No. 1, and the whole shape of No. 2, barring 

 the supraorbital arch, indicate a morphological advancement in the 

 direction of the present type of man such as is not met with in other 

 examples of Homo neanderthalensis. The crania, and particularly 

 No. 2, may be justly regarded, it seems, as approaching transitional 

 forms from the more typical older Neanderthal type toward that 

 which we now know from the Aurignacean and perhaps lower Solu- 

 trean epochs, such as the Homo aurignacensis and the man of 

 Pfedmost. 



Kemarks on other skeletal parts from the Spy terrace will be 

 limited to those of skeleton No. 2, the parts representing skeleton 

 No. 1 being fewer in number and for the most part very defective. 

 The bones of No. 2 are massive and show many primitive features, in 

 which they approach closely to the skeleton from the Neanderthal 

 cave. The femur is equally characterized by very stout neck and 

 large head, the popliteal space is still slightly convex from side to 



1 Approximately. - Fragment. 



