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89
Table C, showing the intelligence quotients of Jews.

Cephalic Indices.—Table A shows that of 110 myopes 7 or 6-3 per cent. are
dolichocephalic, 48 or 43.7 per cent. mesaticephalic, 47 or 42-7 per cent. brachycephalic,
and 8 or 7.3 per cent. hyperbrachycephalic. Separating Gentiles from
Jews (Tables B and C), of the 86 Gentiles 7 or 8.1 per cent. are dolichocephalic, 43
or 50 per cent, mesaticephalic, 33 or 38.4 per cent. brachycephalic, and 3 or 3.5 per
cent. hyperbrachycephalic. Of the 24 Jews none are dolichocephalic, 4 or 16.7 per cent
are mesaticephalic, 15 or 62.5 per cent. brachycephalic, and 5 or 20.8 per cent. hyperbrachycephalic.
For the 86 Gentiles the average cephalic index is 79.2.
Comparative figures for Londoners given by Professor F. G. Parsons, in his address
on "The Englishman of the Future," are 77.7 for St. Thomas's Hospital patients
and 78.5 for students of that Hospital. The myopes appear, therefore, to have a
breadth of head rather above the normal, but it must be remembered that those
examined were children from 5 to 10 or 11 years of age. It is possible that at that
time of life the cephalic index may normally be greater than in the adult, though
figures are not yet available for comparison. For the 24 Jews, numbers of whom
come from races normally broadheaded, the average cephalic index is 82.9.
Grouping Gentiles and Jews (Table D), little relationship is shown between
the degree of myopia and the cephalic index. Children with the highest degrees of
myopia are not the most broadheaded, none of the 10 with a mean myopia of over
12 dioptres being hyperbrachycephalic.