4Q 



GRATTAN'S TABLE, 



Showing his Scheme of Skull Measurements: — 



Section I. 

 DIMENSIONAL MEASUREMENTS. 

 Capacity in cubic inches 

 Length in inches and tenths 

 Breadth 



Vertical height at 60 degrees 

 Circumference 

 Occipito- frontal Arch 

 Transverse Arch at 90 degrees 



Capacity in cubic Centimetres 



Length in Millimetres 



Breadth 



Vertical height at 60 degrees 



Circumference 



Occipitofrontal Arch 



Transverse Arch at 9( 



Section IT. 



PROPORTIONAL MEASUREMENTS 



in lOOths of Long Diameter of Cranium, 



Group I. 



Length 



Breadth 



Vertical height at 60 degrees 



Circumference 



Occipito frontal Arch 



Transverse Arch at 90 degrees 



Section II. 







MESIAL RADII. Group 



II. 





1 ° 



At 





10 



) Angular 





20 



Intervals 





30 



of 





40 



10 degrees 





50 



from the 





60 



Naso- frontal 





70 



Suture 



1 80 



as 



{ 90 



Zero, 





100 



and -with the 





110 



Axis 





120 



of the 





130 



Auditory 





1-10 



Foramina 





150 



as 





160 



Centres. 





1170 

 J 180 



Section IT. 



CORONAL ARCS. Group III. 



_, \ Frontal 

 •S { Parietal 

 ^ i Occipital 



J Total of, or Occiptio Frontal 



At 10 degrees 

 30 

 60 

 90 

 120 

 15') 



To posterior edge of F 

 .. anterior do. 

 ,, front edge of Upper 

 ,, Symphysis Menti 



Magnum 

 do. 



Maxilla, 



Section II. 



TRANSVERVE DIAMETER, Group IV 



Mastoidal 

 Meatorial 



(10 degrees 



rr ! 1 30 



Temporal ar . 



/) at 9 o ;; 



Zone | 120 „ 



U-50 



( 10 degrees 



Supra-Temporal \ rc\ " 



Zone 1 12Q » 



1150 



Section III. 



MISCELLANEOUS MEASUREMENTS, 



Long Diameter of F. Magnum 

 Transverse do. do. 



Cerebellar Depression below 1 50° 



Angular Position of— 

 Coronal Suture 

 Lambdoidal do. 

 Posterior edge of F. Magnum 

 Anterior edge of do. 



,. Upper Maxilla 



Symphysis Menti 



