580 DESCRIPTION OF FIGURES OF SKULLS. 



protuberance is the most backwardly placed portion of the skull ; 

 and the extreme length and the fronto-inial length therefore 

 coincide. Tlie absence however of the portions of the skull walls 

 specified enables us to see that the cerebral hemisphere of the left 

 side has overlapped the cerebellum by a considerable length. 

 The point of maximum transverse wddth lies at a lower level 

 than and anteriorly to the faintly- marked parietal tubera which are 

 situated far back in the norma verticalis. In this view the skull 

 itself is seen to be little more bluntly oval and more globosely 

 rounded out than the figure given of it. The supraciliary ridges 

 are largely developed, a broad but shallow and transversely sutured 

 furrow representing the glabella between them. The muscular and 

 mastoid ridges are large, the teeth however are small, and the 

 wisdom teeth have not been developed in either jaw. The sagittal 

 and coronal sutures are open in both tiibles of the skull. This skull 

 represents in an early period of life the same modification of the 

 braehy- cephalic type which we have represented to us in advanced 

 life by such forms as that of ' Rudstone, Ixiii. 9,' figured and described 

 below at pages 590-594, and in which we find a markedly oblique 

 frontal combined with a parieto-occipital region as markedly vertical. 

 The lesser obliquity of the frontal slope ^ in the skull now before us 

 is, like the smaller development of its frontal sinuses, the patency 

 of its sutures, and some other peculiarities, to be explained by a 

 reference to the lesser age of its owner. 



' See Cleland, Phil. Trans., 1870, pp. 136, 163, and p. 591, note, infra. 



