NOTES ON SKELETON FOUND AT CISSBUBY. 437 



skull is viewed from the front, the lowness of the orbital and the 

 height of the nasal indices are very obvious ; the end interzygo- 

 matic diameter forms the base of a triangle with its apex at the 

 middle line of the frontal ; but inferiorly, the flanging out of the 

 lower jaw at its angles diminishes the relative superiority of this 

 transverse measurement. The malar portion of the orbit has its 

 edges everted. The supra-orbital portion is strongly developed, 

 and bridges over the supra-orbital foramen. The supra-ciliary 

 ridges are distinct from the supra-orbital, and meet across the 

 middle line. The frontal sinuses are far from being co- extensive 

 with them. 



The lower jaw of this skull contrasts in very many important 

 particulars with the lower jaw of the other skull from Cissbury 

 (' Jour. Anth. Inst.' I.e., p. 34, and Article XIX. p. 425). The body 

 of the bone, instead of having its symphysis separated by a wide 

 interval from a horizontal plane upon which itself rests, has an all 

 but perfectly horizontal boundary line inferiorly, upon which it 

 would rest in its entire length but for a small downward growth in 

 the region of the symphysis, and a slight rounding off of its angle, 

 the general contour of which is quadrangular; when thus resting on 

 a horizontal plane, it has its coronoid process projecting considerably 

 above the level of the articular surface of the condyle, and when 

 placed in its normal relation with the skull it has this same process 

 prolonged a considerable way into the zygomatic fossa; a line 

 drawn along the lower margin of the body of the bone makes an 

 angle of but 103 with one drawn along the posterior aspect of its 

 ascending ramus as opposed to the angle of 133 made by the same 

 lines in the other lower jaw from Cissbury ; and the teeth are less 

 worn and of smaller size, and the body of the jaw less tumid, 

 though the age was about the same and the sex male as opposed to 

 female. If the regions of the symphysis of the lower jaws differ 

 very much when looked at from the front, they differ even more 

 when looked at from behind. The posterior aspect of the symphysis 

 of the lower jaw can be naturally divided into two segments, one 

 anterior, the other posterior to the tubercles for the geniohyoglossi 

 and the vascular foramen just in front of them. If we place the 

 point of one arm of a pair of compasses in this pretty constant 

 foramen, and take with the other, first, the distance to the alveolar, 

 and secondly, the distance to the mental edge of the symphysis, we 



