262 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 83 



measurements of the skull of la chapelle-aux-saints 

 (continued) 



Orbits: Breadth right 



left 



Height right 



left 



Index, mean 



Nose: Length (nasion-spine) 



Length (nasion-lowest points of inferior border of 



aperture, each side) 



Breadth 



Index 55-7 53-1 



' Max. -vertical height from the glabella-inion line X 100 „ . , . ^, _.^, ,, 



2_^ : ,, . . . Same mdex m the Pithecanthropus is 



Length of the glabella-inion line. 

 34.2; in the Gibraltar skull, 40.0; in the Neanderthal 40.4; in Spy No. i, 40.9; and in Spy No. 2, 

 44.3 cm. (Boule, Mem., p. 36.) 



2 Lowest point on the inferior border of the left nasal notch. 



'Owing to borders damaged or wanting, not enough allowance made; maximum original 

 breadth was greater. 



* Evidently not taken to base of spine, which corresponds to the middle of a line connecting 

 the lowest points of the border of the aperture on each side. 



Lower Jaw 



Height of body at mental foramen (in rear of post. 



premolar) 



Thickness of body at same vertical 



Thickness max 



Symphyseal angle (angle formed by the line of the 

 symphysis and that of the inferior border of the 

 jaw) 



Mandibular angle 



Lateral diam. of right condyle 



Antero-post. diam. of right condyle 



Minimum breadth of ascending ramus, right 



left 



Height of right ramus, near 



Height of left ramus, near 



Length of corpus, approx., right 



Length of corpus, approx., left 



was probably 

 not over i . 7 



65 



65 



6.7 



6.3 



12.4 



12.0 



' In man of today this angle varies approximately from 57° to 93°; in early human mandibles 

 from 85° to 110°; in anthropoid apes from 105° to 124° (Boule, Mem. p. 83). 



in the facial portion, are with the skull of Gibraltar. It approaches 

 in many essentials the human skull of today; yet it carries still many 

 remnants of the prehuman past. As will be seen later, it belonged to 

 a male of short stature but very muscular, massive frame, which 

 doubtless accounts in great measure for its large brain. 



