408 TWO REMARKABLE SKULLS 



which is about 52.5 cm. (Quain)^^^\ This high jQgure may 

 be partially explained by the undue prominence of the 

 superciliary ridges. Apart from this it is evident that the 

 skulls of definitely low types of mankind can frequently 

 exhibit a horizontal circumference equal to the average 

 European, and it teaches us one instructive fact, namely, 

 that the increased cranial capacity of white races is due for 

 the most part to an expansion upwards of the roof of the 

 skull above the level of a horizontal plane passing through 

 the glabella and the occipital point. 

 The Cranial Measurements. 



No. 1 Skull No. 2 Skull 



Cranial length (Glabella-inion) .... 19.00 cm. 19,9 cm. 



Cranial breadth 12.20 cm. 12.80 cm. 



Basal height of cranium 12.95 cm. 13.05 cm. 



Horizontal circumference 52.07 cm. 53.49 cm. 



Nasion to Basion 9.75 cm. 9.65 cm. 



Basion to Alveolar Point 9.95 cm. 10.30 cm. 



Nasal height 5.45 cm. 5.10 cm. 



Nasal breadth 2.75 cm. 2.80 cm. 



Bizygomatic breadth 14.35 cm. 13.90 cm. 



Interstephanic breadth 10.50 cm. 10.00 cm. 



Orbital breadth 4.15 cm. 4.10 cm. 



Orbital height. 3.35 cm. 3.35 cm. 



Palatomaxillary length 5.50 cm. 5.85 cm. 



Palatomaxillary breadth 6.35 cm. 6.55 cm. 



Minimum post-frontal breadth. . . 9.50 cm. 9.30 cm. 



Glabella-bregma chord.-. 11.15 cm. 11.35 cm. 



Bregma-lambda chord. . 12.10 cm. 12.35 cm. 



Lambda-inion chord 6.60 cm. 6.45 cm. 



Maximum distance of frontal arc 



from chord 13.5 mm. 14.0 mm. 



Maximum distance of parietal arc 



from chord 30.0 mm. 34.0 mm. 



Maximum distance of lambda- 

 inion arc from chord 9.0 mm. 9.0 mm. 



