Throughout the whole of this neighbourhood are numerous plains of ferruginous swamp-ore; only in the rainy seasons, when the rainfall is at its height, are these covered at all with grass, which at its best, compared to the luxuriant vegetation around, is a meagre down, hardly equal to our poorest pasture lands. On this plateau the rains of March and April begin to fill the numerous clefts and chasms; the pools thus formed contain a variety of interesting water-plants, which disappear completely when the waters again subside. Whereever the red rock is exposed, its surface is adorned by the rosy blossoms of the dianthera, a species of capparis, which here supplies the place of our viscous catch-fly and cuckoo-flower. Nowhere in the exuberant tropics are we more vividly reminded of our own scenery than in such spots as these, where, on the edge of woody precipices and surrounded by the smiling green of the sward, gleam these gay patches of dianthera. The naked stone covered by a low detached overgrowth, in picturesque grouping, rivalled all that I had ever seen. The gardenia trees fill the air with the fragrance as of a bower of orange blossoms and jasmine. [Illustration: Leucotis Antelope (female).] The month of May here, as in Europe, is a month of flowers, amongst which the world of butterflies pass their ephemeral existence. As a rule, these lepidoptera were not larger nor more diversified in form and colour than the European, but, in their aggregate, they were full of beauty. The dews of night were not sufficient for their thirst, and in motley masses they assembled round every puddle to enjoy the precious moisture. By a skilful swing of the butterfly-net I could catch a hundred at a time. They continue to swarm in this way till the beginning of July. At times I saw them thronging all amongst the foliage, and giving to many a plant the appearance of being covered with the most variegated blossoms; the bare rock, though destitute of vegetation, became as charming as a blooming meadow. The quantities of butterflies in this district are very large in comparison to what are found in the northern regions of Africa at this season. Two leagues to the south of the new Seriba was the site of the one which had been burnt. But few vestiges remained, for nature here soon effaces what fire may have spared. The only surviving evidence of its ever having been the resort of men was a thriving grove of plantains (_Musa sapientum_). The shoots had been introduced from the Niam-niam lands. In the meagre households of the Nubians, fruits and vegetables are hardly considered necessaries; indolence and distaste for work cause the gardens to be much neglected. By my own experience, I have found that all garden produce of the southern regions can be cultivated here at the outlay of very little attention. The plantain bears fruit within eighteen months of its first sprouting.