A panorama of ethnological studies during the last two or three years must cover considerations as apparently remote as the margin of error in estimating the age of radio-active elements on the one hand and, on the other, the question of whether ethnology originates from the sciences of Man or the sciences of Nature. This widening of the scope of ethnological studies is matched by the widening of public interest in ethnological problems, or, to put it more precisely, in problems presented in the terms and by the aid of ethnological formulae. It should be noted, moreover, that also the traditional domain of ethnology is in a process of expansion, stretching from the study of the so-called savage or primitive social forms, without hesitating any longer, to the field of modern society and its most complex activities.