I could return to Zintan and drive down to jebel Nefusa via Gharyan.
The stony plain reappears unchanged geologically, but more broken by the proximity of a lofty range of hills, the jebel Aja.
It is by all accounts of the same rock (red granite) as jebel Aja.
The streams flowing north from jebel Marra have a less rapid descent, and are quickly absorbed in the sandy soil of the desert.
The modern name of this part of the country is jebel Selseleh.
jebel Mizmeh, the highest point east of it, is alone perhaps basaltic.
The rock temple at Silsila and a shrine at jebel Adda are also his.
The quartzite work from jebel Ahmar near Cairo stands next, as often very fine design is found in this hard material.
A singular phenomenon is the "musical sand" of jebel Nagus, a sandy hill lying to the west of the mountain usually called Sinai.
The riflemen on jebel Surgham, though shelled by the gunboats, persisted in their fusillade, and casualties became frequent.