In preparing the models, accuracy was the chief thing considered. Any attempt at dramatic or picturesque effect, except what was natural to the type portrayed, was felt to be out of place. Each head was subjected to the strict test of measurement--such as the ratio of breadth to length and height, and the distance between the eyes and between the cheek bones--this being the most valuable criterion of racial differences. All portraiture was avoided, both as being somewhat invidious and unscientifically personal, and, more especially, because no one man can ever exemplify all the average physical characteristics of his race. On the other hand, the heads were never permitted to become merely ideal. It will be noticed that all are those of men in the prime of life. [Illustration: AUSTRALIAN. NEGRITO. ZULU.] The list of the races, beginning at the north end of the Entrance Pavilion, and thence continuing south and round the building to the Northwest Pavilion, is as follows, each head being numbered for convenience in following the order in which they occur: 1, Russian Slav; 2, Blonde European; 3, Brunette European; 4, Modern Greek; 5, Persian (Iranian); 6, Circassian; 7, Hindoo; 8, Hungarian (Magyar); 9, Semite, or Jew; 10, Arab (Bedouin); 11, Turk; 12, Modern Egyptian (Hamite); 13, Abyssinian; 14, Malay; 15, Polynesian; 16, Australian; 17, Negrito (from Indian Archipelago); 18, Zulu (Bantu); 19, Papuan (New Guinea); 20, Soudan Negro; 21, Akka (Dwarf African Negro); 22, Fuegian; 23, Botocudo (from South America); 24, Pueblo Indian (as the Zuñis of New Mexico); 25, Esquimaux; 26, Plains Indian (Sioux, Cheyenne, Comanche); 27, Samoyede (Finnish inhabitant of Northern Russia); 28, Corean; 29, Japanese; 30, Aino (from Northern Japan); 31, Burmese; 32, Thibetan; 33, Chinese. [Illustration: PAPUAN. SOUDAN NEGRO. AKKA.]