LECTURE II. 71 



Pigr. 27. Vortical section of the skiill of an Australian, after Lucae. 



Busk's System of Measurement. 

 See figm-es 19, 21, 23, 25, 27; pages 61, 65, 67, 69, 71. 



Name. 



CIECUMPERENCES. 



Circumference. 

 Longitudinal arc. 



Frontal transverse arc. 

 Vertical transverse arc. 

 Parietal transverse arc. 

 Occipital transverse arc. 

 Longitudinal frontal arc, 

 Longitud. parietal arc. 

 Longitud. occipital arc. 



Direction and Points determining the Measurements. 

 References to Virchow and Welcker. 



Nasal suture to the posterior margin 

 of the foramen magnum. 



The two meati auditorii. 



All these circumferences of arcs are 

 taken in the direction of the radii 

 of the same names. 



liefer, 

 to tile 

 figures 



2 



3 



4 

 5 

 6 



7 



