THE ABORIGINES OF TASMANIA. 



419 



Table II. 



Sagittal Contours. 





Brussels 



Mean of Skulls 





Museum. 



in Part I. 



Basi-inial radius, b.i., ...... 



78 mm. 



80 mm. 



,, -occipital radius, b.oc, ..... 



102 „ 



102 „ 



,, -lambdal ,, b.l., ..... 



105 „ 



110-5 „ 



,, -perpendicular radius, b.p., .... 



122 „ 



1318 „ 



,, -bregmatic „ b.br., . 



123 „ 



131-8 „ 



„ -glabellar „ b.gl, .... 



99 „ 



127-1 „ 



„ -nasial ,, b.n., .... 



96 „ 



101-1 „ 



„ -alveolar „ b.al., .... 



100 „ 



101-1 „ 



Nasio-tentorial plane, n.t., ..... 



161 „ 



172 8 „ 



Tentorio-bregmatic segment, . . . 



91 „ 



91-8 „ 



„ -perpendicular ,, .... 



92 „ 



93 „ 



„ -lambdal ,, .... 



66 „ 



60-6 „ 



„ -occipital ,, ..... 



58 „ 



47-8 „ 



From perpendicular radius to point on arch of 







frontal above glabella, ..... 



96 „ 



94-1 „ 



From perpendicular radius to occipital point, . 



68 „ 



85-1 „ 



Collective heights of four diameters from tentorial 







plane to vault of cranium, .... 



307 „ 



285-2 „ 



Total length and collective heights, 



471 „ 



464-6 „ 



Parieto-squamous breadth, ..... 



131 „ 



1326 „ 



Collective heights, length, breadth, 



602 „ 



597-3 „ 



It will be seen that the basi-radial measurements in the Brussels skull were, as a 

 rule, less than the mean radii of the former group, though the tentorio-lambdal and 

 -occipital segments were appreciably longer in the Brussels skull ; the collective heights, 

 length and breadth in the latter were greater than in the former group. 



In Table III. measurements are stated of the chords of the frontal and parietal arcs, 

 and that of the occipital, from the lambda to the inion ; for each arc a perpendicular 

 has been erected from the chord to the highest point of the arc. A column has also 

 been included which gives the mean of the corresponding measurements of six skulls 

 in Part I. 



Table III. 



Chords and Arcs. 



Nasio-bregmatic chord of frontal, br.n., . 

 Perpendicular therefrom to outer surface of bone, 

 Bregma-lambdal chord of parietal, br.l., . 

 Perpendicular therefrom to outer surface of bone, 

 Lambda-inial chord of occipital, Lin., 

 Perpendicular therefrom to outer surface of bone, 



Base line of skull, 

 Total longitudinal arc, . 

 Longitudinal circumference, . 

 Base line to total longitudinal arc, 



,, ,, ,, circumfer 



Cubic capacity of cranium, . 



TRANS. ROY. SOC. EDIN., VOL. XL VII. PART III 



Brussels 



Museum. 

 104 mm. 



26 „ 

 103 „ 



18 „ 



57 

 6 „ 



127 „ 



349 „ 



476 „ 



2-7 „ 



3-7 „ 



1080 c.c. 



Mean of Skulls 



in Part I. 



108-6 mm. 



24 „ 



113-6 „ 



24-1 „ 



56 „ 



7-1 „ 



134-5 ,, 



359 „ 



495-1 „ 



2-63,, 



3-65,, 



1235 c.c. 



(NO. 16). 



63 



