During the last quarter of a century about twenty-five hundred Jews have submitted their heads to scientific measurement. These have naturally for the most part been taken from the Great Russian and Polish branch; a few observers, as Lombroso, Ikof, Jacobs, Glück, and Livi, have taken observations upon a more or less limited number from southern Europe. For purposes of comparison we have reproduced in our footnote a summary of all the results obtained thus far. Inspection of the table shows a surprising uniformity. Ikof's limited series of Spagnuoli from Constantinople, and that of the Jews from Caucasia and Daghestan, are the only ones whose cephalic index lies outside the limits of 80 to 83. In other words, the Jews, wherever found in Europe, betray a remarkable similarity in head form, the crania being considerably broader than among the peoples of Teutonic descent. As we know, the extremes of head form in Europe, measured by the cephalic index, extend from 74 to 89; we thus observe that the Jews take a place rather high in the European series. They are about like the northern French and southern Germans. More important still, they seem to be generally very closely akin in head form to the people among whom they reside. Thus, in Russia and Poland scarcely an appreciable difference exists in this respect between Jews and Christians. The same is true in Turin, while in the direction of Asia our Jews are as bullet-headed as even the most typical Armenians and Caucasians round about them. [Illustration: ARAB. Index, 76. MUSSULMAN, TUNIS. Index, 75. JEW, TUNIS. Index, 75. AFRICAN SEMITIC TYPES.]