The country of the Adaiel is throughout very sparingly watered. During spring and autumn the hills collect sufficient rain-water for numerous rivulets, which after a course of scarcely one mile are absorbed by the sands, and dry up altogether by the end of the rains, whilst the deep hollows and clefts in the firmer rock preserve small quantities for the dry months of the year. The Hawash itself, although receiving all the rivers of Efat, and of the eastern declivity of the Shoan mountains, does not reach the sea. The banks, thickly overgrown, are about thirty feet in height, and very abrupt. Its fall is scarcely perceptible, yet the rush of the water is very considerable. On the western bank volcanic hills and sheets of water again appear, the latter being situated lower than the bed of the stream. One of these, impregnated with alkali, is evidently an old crater filled up, and supplied by a hot mineral spring. The water is much esteemed for washing clothes; it possesses an hydrothionic smell and a bitter taste, resembling that of the salt of magnesia; but the borders are verdant, and a species of Cyperus grows luxuriantly in the water. This portion of the country, though still sparingly supplied with the means of subsistence, is more favourable for specimens of zoology than the burning tract between Tajura and Killulloo. Of _Beetles_ the family _Coprophaga_ had many representatives: Scarabaeus, Copris, Ateuchus, Onitis, Aphodius, Trox; Melolontha; four species of Cetonia (on the Aloe); one Silpha, Hister, Abax, Graphipterus, Anthia, Staphylinus, Elater, Cantharis, Erodius, Moluria, Pimelia, Mylabria, Chrysomela. Of _Orthoptera_, large flights of Gryllus migratorius were observed near Azboti. Acrydium and Gryllotalpa very common throughout. Also many Neuroptera, and termite cone studding the face of the country. Of _Acephala_ only one, Unio, was found near the Hawash. A few frogs were seen in the waters, but no fish; and although lizards abounded on the land, there were no serpents. One large-sized tortoise was picked up. Birds of all descriptions inhabit the plains and enliven the scanty woods: the ostrich, Otis arabs, the partridge, ducks, adjutant, Charadrius spinosus, Psittacus, Lampromis, Tanagra erythrorhyncha, Pyrrhocorax. Of beasts, the giant in creation, the elephant, and his rival in hugeness, the hippopotamus, abound in the plain of the Hawash; and rapacious animals, the lion, the leopard, and the hyaena, prowling about the camp during the night, render indispensable the protection of a stout thorn fence. Of the order _Rodentia_ the porcupine is common; also a variety of rats. Of _Ruminantia_: a few antelopes. Of _Fissungula_: Hyrax. Of _Setigera_; Phacochaerus abyssinicus; and of _Lemures_: Galago.