284 MEMOIliS OF THE NATIONAL ACADEMY OF SCIENCES. 



VI. Zy<?omatic face index (after Kollmann). ^, ^'^^,^ ,^'^ ,/, calculated from the greatest 



/ygoiuatic breadth. 



distance between the zygomatic arches (No. IS) and facial height (No. 19), gives two grades : 



Low, chama^pro.sopic, face crania to 90. 



High, leptoprosopic, face crania 90. 1 and above. 



VII. Zygomatic upper face-height index (after Kollmann). ^'*^' upper^^faceheight. 

 ^^ ^* "^ ^ ' Zygomatic breadth. 



ChamiBpro-sopic upper face with index to .W. 



Leptoprosopic upper face with index -W. land above. 



TTTiT /-> 1 .t 1 • 1 100 orbital height. 



VIIL Orbital index. — ^^,-^,^-, — .^ -? — 

 Orbital width. 



ChamiBkonchic to SO. 



Mesokonchic 80. 1 — 85 



Hypsikouchic 85. 1 and over. 



IX. Nasal index. 100width_of nasal cavity. 

 Nasal height. 



Leptorrhinic to 47. 



Mesorrhinic 47. 1 — 51. 



Platyrrhinic 51. 1— 58. 



Ilyiierplatyrrhinie 58.1 and over. 



X. Palate in.lex (after Virchow). 100 palate brea^ 

 ^ Palate length. 



Leptostaphylin ., to 80. 



Mesostaphylin 80. 1—85. 



Brachystaphylin 85. 1 and over. 



