The trap has frequently run through the gorges made in the upheaved rocks, and at the points of junction between the igneous and older rocks there are large quantities of strongly magnetic iron ore.

The clayey soil formed by the disintegration of the mica schist and trap is the favorite soil for the coffee; and it is on these mountain sides, and others possessing a similar red clay soil, that this plant has propagated itself so widely.

The meadow-lands adjacent to the Senza and Coanza being underlaid by that marly tufa which abounds toward the coast, and containing the same shells, show that, previous to the elevation of that side of the country, this region possessed some deeply-indented bays.
28TH SEPTEMBER, KALUNGWEMBO .-- We were still on the same path by which we had come, and, there being no mosquitoes, we could now better enjoy the scenery.

Ranges of hills occupy both sides of our path, and the fine level road is adorned with a beautiful red flower named Bolcamaria.

The markets or sleeping-places are well supplied with provisions by great numbers of women, every one of whom is seen spinning cotton with a spindle and distaff, exactly like those which were in use among the ancient Egyptians.