ETHNOLOGY and ETHNOGRAPHY, primarily sciences which deal with man as a racial unit, and with the distribution over the earth of racial units. They include a comparative study of the physical characters of the races of mankind and also a compara tive study and classification of peoples based upon cultural condi tions and characteristics.
The article RACES OF MANKIND deals with the nature and dis tribution of the main races as now defined by anthropologists. The word "ethnology" is used with a somewhat vague meaning for any ethnological study based on data of this general nature. "Ethnography" is conveniently restricted to the scientific map ping out of different racial regions, and exhibits the vital connec tion of social with geographical phenomena. (See ANTHROPOLOGY and the series of articles referred to therein.)