Haddon — Studies in Iri^h Craniology. 



315 



Analysis of the Male Calvaeia. 



The five male calvaria form a distiuct group by themselves, and 

 it is easy to pick them out, at a glance, from the female. Their 

 cephalic index ranges from 75'3 to 77'1, the average being 76 "3 ; 

 thus all are mesaticephalic. 



The altitudinal index of the only one (F) in which it could be 

 determined, is probably 70' 7, or distinctly tapeinocephalie. This 

 is also the average of five female calvaria. A marked feature of the 

 male calvaria is a swelling in the central parietal region, which 

 makes them appear higher than the female calvaria. Owing to the 

 absence of the basion I was unable to test this by means of direct 

 measurements, and so I had recourse to auricular radii as measured 

 by Cunningham's modification of Eusk's instrument. I may take 

 this opportunity of stating that, as ancient crania are so often 

 imperfect at their base, it is desirable, even in unbroken skulls, to 

 take auricular radial measurements, so that a means of comparison 

 may be available when the basion is wanting. The following table 

 gives the average auricular radii of the male calvaria D, E, F, and of 

 the female calvaria A, I, K, 3J . The several measurements will be 

 found in the general table. The " auriculo-parietal radius" was 

 measured from the aiuicular axis to about the middle of the sagittal 

 suture, that is, in the region of the parietal eminences ; this gives the 

 highest auricular radius. 



Average of — 

 3 males, 



auric-bregm. rad., 



118 



auric-par. rad., 



125 



auric-lambd. rad. 



111' 



4 females, 



)5 )) 



112 



)5 )? 



117 



)) J) 



105 



3 males. 



index of ditto, 



628 



index of ditto, 



665 



index of ditto. 



590 



4 females. 



)5 )) 



615 



5) 5) 



643 



)> )) 



577 



Diff. tetween 

 m. and f., 



>) )> 



13 



5) )) 



22 



)) )) 



13 



Instead of simply comparing the several or the average radial 

 measurements of the male and female calvaria, I have calculated the 

 auriculo-vertical index for all the averages, and it is these I have 

 compared together, and then found that there was an appreciable 



