4. There exists no political division which comprises the whole of Africa. The north coast alone was inhabited by civilized nations: Egyptians, Cyrenaeans, and Carthaginians; of which the first only were aboriginals. The rest of the inhabitants either roved about as nomad hordes, or formed insignificant states, of whose existence we have heard some account, though we possess no history of them. Along the shore, reckoning from the Plinthinetic gulf, Egypt is succeeded by: 1st. Marmarica, a tract without cities, consisting principally of sandy deserts, occupied by nomad hordes: this country extends from the 40-47 deg. E. long. from Ferro. 2nd. The fertile territory occupied by the Greek colonies, called Cyrenaica, extended to the Greater Syrtis, 37-40 deg. E. long. Cities: Cyrene, Barca. 3rd. The territory of Carthage, extending from the Greater Syrtis to the Fair Promontory, 25-40 deg. E. long. This territory comprised (_a_) the country between the Greater and Lesser Syrtis, (Regio Syrtica,) which constitutes the modern kingdom of Tripoli; a sandy tract, almost wholly occupied by nomads. (_b_) the territory of Carthage, properly so called, (kingdom of Tunis). A very fruitful country; the southern part, called Byzacena, the northern part Zeugitana. Cities: Carthage, Utica, etc. 4th. Numidia and Mauritania; occupied during the Carthaginian age by nomad races. Along the shore some Carthaginian settlements. EGYPTIANS. Preliminary remarks. Egypt in its superficial contents is equal to about two-thirds of Germany, and may therefore justly be ranked among the more extensive countries of the globe; it greatly varies, however, in its physical properties. The soil is only sufficiently fertile for tillage on the banks of the Nile, and as far as the floods of that river extend; beyond that, on the west, is a sandy desert, on the east a chain of rocky mountains. From its entrance into Egypt at Syene, the Nile flows in one undivided stream to the city of Cercasorus, 60 geogr. miles above its mouth, directing its source from south to north through a valley from 8 to 16 geogr. miles broad, bounded on the west by deserts of sand, and on the east by mountains of granite. At Cercasorus the stream first divides itself into two main branches, which formerly discharged their waters into the Mediterranean, the eastern near the city of Pelusium, the western near the city of Canopus (_ostium Pelusiacum et Canopicum_;) from these two diverged several intermediate branches; so that in the time of Herodotus there existed seven mouths of the Nile, but the number has not always remained the same. The tract between the two extreme arms of the Nile bears, in consequence of its triangular form, the name of the Delta; it was covered with cities, and highly cultivated. The fertile part of Egypt, inhabited by civilized men, was therefore confined to the Delta and the valley of the Nile, on the two banks of the stream from Syene to Cercasorus; to which must be added some well