ANTHROPOMETRY 151 



anthropometric work, and divisions with terms, which in the nature 

 of things must always retain something of the arbitrary, are now 

 employed more for convenience than of necessity. Stili, the classi- 

 fication of the various indices and its terminology are useful, and 

 some day will doubtless become subject to proper international agree- 

 ments. 



In these pages no attempt will be made to treat the subject of anthro- 

 pom.etric indices historically, or to give their different classifications. 

 For these the student is referred to Broca's Instructions, Topinard's 

 Elements d' Anthropologic generale} Martin's Lehrbuch, and similar 

 publications in other languages. What will here be given with few 

 exceptions are the most widely accepted and most frequently used 

 indices, together with best known nomenclatures. 



There is no limit to other legitimate indices, as there is none to 

 possible measurements; and any index, as any measurement, may 

 assume more or less of anthropological value if obtained on sufficiently 

 large series and groups of individuals or specimens. 



HEAD AND SKULL. 



R V mo Dolichocephaly up to 74.9 



Cephalic (and Cranial) Index :: Mesocephaly 75-79.9 



Brachycephaly 80 and above. 



(On the skuU the index is approximately 2 points lower than that on the head.)* 



Mean Height Index (CephaUc and Cranial) — ^rj . . _ 



Height — Length Index r (of limited use). 



Height — Breadth Index 5 (of limited use). 



Cephalic (or Cranial) Module s 



_, . . ^ , , ^^ .. Diameter bizygomatic maximum X 100 



Physiognomic Index (on Head) zr-i — r^^v"^ v t- 1 -~ 



Menton-Hau- line diameter 



' Which is particularly rich in historic notes, p. 364 et seg. 



'See on this point Topinard's Elements etc., 373; also Duckworth (W. L. H.) — 

 J. Anat., Lond., 1917, LI, 167-179. 



' Height, on head, from hne connecting floor of auditory meatus to bregma; 

 on skull, basion-bregma. Not directly comparable. 



