The general geological structure is a broad fringe of mica and sandstone schist (about 15 Deg.

E.), dipping in toward the centre of the country, beneath these horizontal and sedimentary rocks of more recent date, which form an inland basin.

The fringe is not, however, the highest in altitude, though the oldest in age.
While at this latter place we met a native of Bihe who has visited the country of Shinte three times for the purposes of trade.

He gave us some of the news of that distant part, but not a word of the Makololo, who have always been represented in the countries to the north as a desperately savage race, whom no trader could visit with safety.

The half-caste traders whom we met at Shinte's had returned to Angola with sixty-six slaves and upward of fifty tusks of ivory.