It will be seen that the various races are grouped so far as possible according to kinship. There is not, however, space--and this is hardly the place--in which to explain the many points which might be brought up in connection with this interesting series of heads. For such information the reader is referred to any good text-book on ethnology.[3] One or two special details, however, may properly be mentioned. The selection of the Pueblo Indian, for example, was a second choice. Professor Mason would have preferred one of the ancient Peruvian Incas, but no satisfactory portrait could be found to work on. The Thibetan is a Buddhist priest, as indicated by his elaborate turban. The Chinese belongs to the learned, or Mandarin class. The Russian with his fur cap is the typical Slavic peasant. The Blonde European is of the educated German type, dolichocephalic, or long-headed; the Brunette European is the Roman type, brachycephalic, or broad-headed. The architect has introduced a Greek fret on the turban of the Greek to symbolize the importance of ancient Greek art. The Egyptian is the typical Cairo camel-driver. The Corean wears the dress and hat of the courtier, and the Turk also is depicted as a member of the upper classes. The Hungarian wears the astrachan or lambswool cap of the peasant. Many of the heads of savage or barbarous races are shown with their peculiar ornaments--the Malay with his earrings, the Papuan with his nose-plug, the Botocudo with studs of wood in his ears and lower lip, and the Esquimaux with the labret or lip-plug of walrus ivory. The face of the Polynesian, finally, is delicately incised with lines, copied from a specimen of Maori (New Zealand) tattooing. [Illustration: FUEGIAN. BOTOCUDO. PUEBLO INDIAN.] [Illustration: ESQUIMAUX. PLAINS INDIAN. SAMOYEDE.]