[The Discovery of the Source of the Nile by John Hanning Speke]@TWC D-Link bookThe Discovery of the Source of the Nile CHAPTER III 2/29
From this level the range before us rises in some places to 5000 to 6000 feet, not as one grand mountain, but in two detached lines, lying at an angle of 45 degrees from N.E.to S.W., and separated one from the other by elevated valleys, tables, and crab-claw spurs of hill which incline towards the flanking rivers.
The whole having been thrown up by volcanic action, is based on a strong foundation of granite and other igneous rocks, which are exposed in many places in the shape of massive blocks; otherwise the hill-range is covered in the upper part with sandstone, and in the bottoms with alluvial clay.
This is the superficial configuration of the land as it strikes the eye; but, knowing the elevation of the interior plateau to be only 2500 feet above the sea immediately on the western flank of these hills, whilst the breath of the chain is 100 miles, the mean slope of incline of the basal surface must be on a gradual rise of twenty feet per mile.
The hill tops and sides, where not cultivated, are well covered with bush and small trees, amongst which the bamboo is conspicuous; whilst the bottoms, having a soil deeper and richer, produce fine large fig-trees of exceeding beauty, the huge calabash, and a variety of other trees.
Here, in certain places where water is obtainable throughout the year, and wars, or slave-hunts more properly speaking, do not disturb the industry of the people, cultivation thrives surprisingly; but such a boon is rarely granted them.
<<Back Index Next>> D-Link book Top TWC mobile books
|