. . . "In the Hidayah (Arabic edition, vol. ii. p. 432) it is said that horses are of four kinds: (1) Birzaun, Burzin, a heavy draught horse brought from foreign countries. (2) ???Atiq, a first blood horse of Arabia. (3) Haun, a half-bred bourse whose mother is an Arab and father a foreigner. (4) A half-bred horse whose father is an Arab and whose mother is a foreigner." .