Two considerable nations, also, the Tibbo and Tuarick, appear to divide the remainder of the space, northward, within the Deserts; embracing Fezzan on every side but the north; and closing on the maritime states along the Mediterranean, from the Desert which shuts up Egypt on the west, to Mount Atlas. Mr. Horneman appears to be the first person who has given these general ideas of the Tibbo and Tuarick; and they merit attention.

The Tibbo, or Tibboo, possess the eastern, and the Tuarick the western, and most extensive part of this vast tract. Fezzan separates them on the north: and its meridian forms nearly their common boundary, until they close southward on Kashna and Bournu.[65]

According to Mr. Horneman, the settlements of the Tibbo, begin at the south and south-east of Fezzan, and extend from thence eastward, along the south of the Harutsch and of the Augilan Desert, to the wide sandy Desert of the Lebetæ[66] (Libya), which shuts up Egypt, on the west. This Desert forms the eastern boundary of the Tibbo. On the south, wandering Arabs possess the tract between them and the empire of Bournu; and on the west, are the Tuarick of Asben (Agades), Tagazee, &c.

The Tibbo are said to be divided into the following tribes: 1. Rshade, or Rock Tibbo. 2. Febabo. 3. Burgu, or Birgu. 4. Arna. 5. Bilma. 6. Nomadic Tibbo.

1. The Rshade. This tribe possesses the country adjoining to the south and south-east of Fezzan; and is besides intermixed with the Fezzaners, in those quarters of Fezzan, (as the Tuarick are in the western quarters, and the Arabs in the north.) The towns of the Rock Tibbo, are Abo and Tibesty; which I am enabled to place generally, by means of a route given by Mr. Horneman.[67]

The Tibbo Rshade, or Rock Tibbo, are so denominated from their building their habitations under rocks, or living in caves; before which they build huts of rushes, for their summer’s residence.

Some idea of the tract inhabited by this tribe, may be collected from Mr. Beaufoy’s account of the country between Fezzan and Bournu, ch. vi.; and from Mr. Horneman’s description of the white Harutsch. The road to Bournu leads out of the country of Fezzan, from Temissa; from which town, seven journies bring us to the plain of Tibesty, said to be inhabited by Mahomedans; which is indeed the religion of the Rock Tibbo. The last four days lead across what is termed “a hilly desert of sand.” So far Mr. Beaufoy’s informant.

The white Harutsch, crossed by Mr. Horneman, is in this vicinity, and extends southward, from the line of his route across it, from Augila to Mourzouk: so that it is not improbable that the “hilly desert” just mentioned, is a continuation of the white Harutsch. What renders it more probable is, that Mr. Horneman was told, that certain black mountains, which he suspected to be a part of the black Harutsch, are crossed in the way from Fezzan to Bournu. And it has been shewn, that the black Harutsch adjoins to the white Harutsch on the east; and this arrangement may continue, southward: in which direction Mr. Horneman was informed the black Harutsch stretched, beyond the line of his route.

This gentleman describes the hilly part of the white Harutsch to consist of “loose friable limestone, in which the petrifactions are imbedded so loosely, that they may be taken out with ease.” No rocks therefore are more likely to contain natural caves, or are more easily excavated, when wanted. This tract, therefore, seems, as well from description, as position, to be that inhabited by the Rock Tibbo.

A circumstance in Herodotus (Melpom. 183), leads one to conclude, that these are the Ethiopian Troglodytæ, hunted by the Garamantes. The Garamantes, I trust, I have made to appear, are the Fezzaners; and here are a tribe of Troglodytæ, on their very borders. They are said, in the same place, to be very swift of foot. Mr. Horneman says, that the walk of the Tibbos is light and swift: as if remarkably so: but then he speaks of the Tibbo, collectively; and not of any particular tribe. But, on the other hand, it appears that he saw more of the Rock Tibbo, than any other: for he says, “they go in multitudes to Fezzan;” and it may be that his opinion of the nation at large was, in a great measure, formed by what he saw of this tribe.[68]