Missionary Travels and Researches in South Africa

by David Livingstone

To these were added great numbers of the fruit which yields a variety of the nux vomica, from which we derive that virulent poison strychnia. The pulp between the nuts is the part eaten, and it is of a pleasant juicy nature, having a sweet acidulous taste. The fruit itself resembles a large yellow orange, but the rind is hard, and, with the pips and bark, contains much of the deadly poison. They evince their noxious qualities by an intensely bitter taste. The nuts, swallowed inadvertently, cause considerable pain, but not death; and to avoid this inconvenience, the people dry the pulp before the fire, in order to be able the more easily to get rid of the noxious seeds.

A much better fruit, called mobola, was also presented to us. This bears, around a pretty large stone, as much of the fleshy part as the common date, and it is stripped off the seeds and preserved in bags in a similar manner to that fruit. Besides sweetness, the mobola has the flavor of strawberries, with a touch of nauseousness. We carried some of them, dried as provisions, more than a hundred miles from this spot.

The next fruit, named mamosho (mother of morning), is the most delicious of all. It is about the size of a walnut, and, unlike most of the other uncultivated fruits, has a seed no larger than that of a date. The fleshy part is juicy, and somewhat like the cashew-apple, with a pleasant acidity added. Fruits similar to those which are here found on trees are found on the plains of the Kalahari, growing on mere herbaceous plants. There are several other examples of a similar nature. Shrubs, well known as such in the south, assume the rank of trees as we go to the north; and the change is quite gradual as our latitude decreases, the gradations being herbaceous plants, shrubs, bushes, small, then large trees. But it is questionable if, in the cases of mamosho, mobola, and mawa, the tree and shrub are identical, though the fruits so closely resemble each other; for I found both the dwarf and tree in the same latitude. There is also a difference in the leaves, and they bear at different seasons.

The banks of the river were at this time appearing to greater advantage than before. Many trees were putting on their fresh green leaves, though they had got no rain, their lighter green contrasting beautifully with the dark motsouri, or moyela, now covered with pink plums as large as cherries. The rapids, having comparatively little water in them, rendered our passage difficult. The canoes must never be allowed to come broadside on to the stream, for, being flat-bottomed, they would, in that case, be at once capsized, and every thing in them be lost. The men work admirably, and are always in good humor; they leap into the water without the least hesitation, to save the canoe from being caught by eddies or dashed against the rocks. Many parts were now quite shallow, and it required great address and power in balancing themselves to keep the vessel free from rocks, which lay just beneath the surface. We might have got deeper water in the middle, but the boatmen always keep near the banks, on account of danger from the hippopotami. But, though we might have had deeper water farther out, I believe that no part of the rapids is very deep. The river is spread out more than a mile, and the water flows rapidly over the rocky bottom. The portions only three hundred yards wide are very deep, and contain large volumes of flowing water in narrow compass, which, when spread over the much larger surface at the rapids, must be shallow. Still, remembering that this was the end of the dry season, when such rivers as the Orange do not even contain a fifth part of the water of the Chobe, the difference between the rivers of the north and south must be sufficiently obvious.

The rapids are caused by rocks of dark brown trap, or of hardened sandstone, stretching across the stream. In some places they form miles of flat rocky bottom, with islets covered with trees. At the cataracts noted in the map, the fall is from four to six feet, and, in guiding up the canoe, the stem goes under the water, and takes in a quantity before it can attain the higher level. We lost many of our biscuits in the ascent through this.

These rocks are covered with a small, hard aquatic plant, which, when the surface is exposed, becomes dry and crisp, crackling under the foot as if it contained much stony matter in its tissue. It probably assists in disintegrating the rocks; for, in parts so high as not to be much exposed to the action of the water or the influence of the plant, the rocks are covered with a thin black glaze.

In passing along under the overhanging trees of the banks, we often saw the pretty turtle-doves sitting peacefully on their nests above the roaring torrent. An ibis* had perched her home on the end of a stump. Her loud, harsh scream of "Wa-wa-wa", and the piping of the fish-hawk, are sounds which can never be forgotten by any one who has sailed on the rivers north of 20 Deg. south. If we step on shore, the 'Charadrius caruncula', a species of plover, a most plaguy sort of "public-spirited individual", follows you, flying overhead, and is most persevering in its attempts to give fair warning to all the animals within hearing to flee from the approaching danger. The alarm-note, "tinc-tinc-tinc", of another variety of the same family ('Pluvianus armatus' of Burchell) has so much of a metallic ring, that this bird is called "setula-tsipi", or hammering-iron. It is furnished with a sharp spur on its shoulder, much like that on the heel of a cock, but scarcely half an inch in length. Conscious of power, it may be seen chasing the white-necked raven with great fury, and making even that comparatively large bird call out from fear. It is this bird which is famed for its friendship with the crocodile of the Nile by the name 'siksak', and which Mr. St. John actually saw performing the part of toothpicker to the ugly reptile. They are frequently seen on the sand-banks with the alligator, and, to one passing by, often appear as if on that reptile's back; but I never had the good fortune to witness the operation described not only by St. John and Geoffrey St. Hilaire, but also by Herodotus. However, that which none of these authors knew my head boatman, Mashauana, stopped the canoe to tell us, namely, that a water-turtle which, in trying to ascend a steep bank to lay her eggs, had toppled on her back, thus enabling us to capture her, was an infallible omen of good luck for our journey.

* The 'Hagidash', Latham; or 'Tantalus capensis' of Lich.

Among the forest-trees which line the banks of the rocky parts of the Leeambye several new birds were observed. Some are musical, and the songs are pleasant in contrast with the harsh voice of the little green, yellow-shouldered parrots of the country. There are also great numbers of jet-black weavers, with yellowish-brown band on the shoulders.

Here we saw, for the first time, a pretty little bird, colored dark blue, except the wings and tail, which were of a chocolate hue. From the tail two feathers are prolonged beyond the rest six inches. Also, little birds colored white and black, of great vivacity, and always in companies of six or eight together, and various others. From want of books of reference, I could not decide whether they were actually new to science.