* In Makrizi's _Description of Egypt_ we read: "Every year, upon a certain day, all the herons (Boukir, _Ardea bubulcus_ of Cuvier) assemble at this mountain. One after another, each puts his beak into a cleft of the hill until the cleft closes upon one of them. And then forthwith all the others fly away But the bird which has been caught struggles until he dies, and there his body remains until it has fallen into dust." The same tale is told by other Arab writers, of which a list may be seen in Etienne Quatremere, _Memoires historiques et geographiques sur l'Egypte et quelques contrees voisines_, vol. i. pp. 31-33. It faintly recalls that ancient tradition of the Cleft at Abydos, whereby souls must pass, as human-headed birds, in order to reach the other world. [Illustration: 12.jpg THE HILL OF KASR ES-SAYYAD. 2] 2 From a drawing by Boudier, after a photograph by insinger, taken in 1882. Then follows Gebel Abufeda, dreaded by the sailors for its sudden gusts. Limestone predominates throughout, white or yellowish, broken by veins of alabaster, or of red and grey sandstones. Its horizontal strata are so symmetrically laid one above another as to seem more like the walls of a town than the side of a mountain. But time has often dismantled their summits and loosened their foundations. Man has broken into their facades to cut his quarries and his tombs; while the current is secretly undermining the base, wherein it has made many a breach. As soon as any margin of mud has collected between cliffs and river, halfah and wild plants take hold upon it, and date-palms grow there--whence their seed, no one knows. Presently a hamlet rises at the mouth of the ravine, among clusters of trees and fields in miniature. Beyond Siut, the light becomes more glowing, the air drier and more vibrating, and the green of cultivation loses its brightness. The angular outline of the dom-palni mingles more and more with that of the common palm and of the heavy sycamore, and the castor-oil plant increasingly abounds. But all these changes come about so gradually that they are effected before we notice them. The plain continues to contract. At Thebes it is still ten miles wide; at the gorge of Gebelen it has almost disappeared, and at Gebel Silsileh it has completely vanished. There, it was crossed by a natural dyke of sandstone, through which the waters have with difficulty scooped for themselves a passage. From this point, Egypt is nothing but the bed of the Nile lying between two escarpments of naked rock.