In this neighbourhood and between Lake Kamadou and the Zambesi the works of the ants are marvellous. One variety builds a dome-shaped nest, which makes a first-rate oven, for it is hollow inside, and by smoking out the inhabitants and lighting a fire it becomes thoroughly heated, and bakes well. So much has been written about the white ant that it needs no description from me; but though I was in India for years I never remember seeing their earthworks half the size they are in Africa, where I have come across them ten to twelve feet high, and so large and firm that I have ridden about the roofs, in and out amongst the pinnacles and minarets, which give them an appearance, let us say, of Milan Cathedral on a small scale! And all this is the work of blind architects, who are obliged to protect themselves from the sun and from enemies by a covered way they build between their nests and any of the trees around, which may have dead wood or branches. How their instinct leads them my reason cannot tell, for they are eyeless. Where there are no chairs or stools, one sits and lies upon the earth, and sees much of the kingdoms and communities of the insect world. Here is the ant-lion lurking at the bottom of his inverted cone of a hole, ambushed and ready to spring upon the incautious insect that, stepping on the edge of his trap, is carried to the bottom by the loose, unstable grains of sand; here the hard-biting, plunger-looking red ant, whose holes have been stopped when the breakfast was prepared and the surface swept for the skins on which we lie. Up he comes, having wired his way through his closed front door, sits on end, strokes what would be his moustache if he had any, and then, with a number of his fellow-sufferers and friends, walks straight to the nest of a large black species of his own family, and each throwing one of the blacks—about twice his own size—over his back, away they go to their own holes, and, pointing out the work to be done, stand with a fierce countenance over their slaves until all is put right, when the inferior race retire. Trapdoor spiders, too, were very numerous, with their cunning arrangements.
But I have wandered from the Limpopo.
The Bechuana are not of much account in hunting elephant with the spear, though they talk and brag a good deal about it; indeed I have known them fairly beaten and forced to come to me for assistance. I can see a young bull now, walking about quite strongly, with forty assegais in him, scattering his assailants by trumpeting and half-charges. ‘Would “Tlaga” come and shoot him for them?’ Tlaga did. The elephant looked like a porcupine, but they would never have bagged him, though he might have died afterwards. It is not so with the Bushmen. They are past-masters of the art of hunting, though here I would mention that there are Bushmen and Bushmen. Those found near the colony and spread over the barren Kalahari country are a small, stunted race, dwarfed probably by scarcity of food and hard usage. The others are upright, tall, sinewy fellows, who with their skill in hunting and the abundance of game never suffer hunger, and who are looked upon, though small in number, with a certain amount of fear by the Bechuanas. I was very fond of the Bushmen. They tell the truth, which the Bechuana do not, and instead of being mere pot-hunters they are enthusiastic sportsmen, enjoying the work as much as yourself. When you are hunting with them, it is true, they leave all to you, and greatly delight in watching a tough fight with a savage bull, giving you full credit for your weapon and your use of it; but their tactics when alone are as follows. Taking up the spoor of, say, five or six tuskers, they follow on until they see their quarry, which, with their splendid sight, they do a long way off. A handful of dust thrown up gives them the wind. Some half-dozen or more men conceal themselves in pairs not far apart in the line they hope the elephants will take. Two or three of the others, making a long détour, give them their wind, and as they move off, try to head them in the direction of the ambush. The moment an elephant comes within reach of one of the pairs a man springs up and, running towards him, throws a very heavy hafted-spear—twelve to fifteen inches in the iron head—not straight, for it would not penetrate—but in a sort of curve, and the descending weapon buries itself by its own weight. The man is in full view, the irritated beast usually makes for him, and though fleet of foot the hunter would very often be caught were it not for his mate, who, immediately the elephant charges, runs up behind him as close as he can, and sounds a shrill whistle, made generally of the leg-bone of a crane, which each wears hung round his neck by a leathern thong. The elephant hears it, and, cautious even in his rage, stops suddenly to find out what danger is in his rear. As he turns, another spear is thrown; another charge, and another whistle; and this goes on until the animal is exhausted and winded, when the final coups are given by men running in and stabbing him behind the ribs, while their companions occupy his attention in front. In this manner a dozen Bushmen will often kill two or three out of a herd.
The Boers have an effective, though cruel, way of killing them. Their legs are solid, not hollow with marrow, like those of most animals; they need to be strong, for a large bull weighs all six tons. The jägers come upon the herd and wish to bag as many as they can; they are not fond of getting too near, and bombarding effectively from a distance is a work of time, so they take the first shots, if opportunity offer, at the forelegs of two or three. The ball splinters and weakens the limb; the sagacity of the animal tells him this at once, and he instantly stands immovable, lest his weight should break it. The hunters follow the rest of the herd and shoot one or two perhaps, and then return to the cripples, who fall an easy prey to the roërs at close quarters. Nine times out of ten the elephant refuses to stir, but if goaded into attempting a charge, the bone snaps directly weight in motion is thrown upon it, and the poor brute falls. It is a most pitiful sight to see these fine, intelligent monsters quietly awaiting death—standing, sadly conscious of their inability to make an effort for attack or escape. I witnessed this butchery but once, and, willingly, would never again.
In the open country the Bechuana, though muffs at elephant hunting, catch large numbers of animals in the hopo. The Ba-Quaina and Ba-Wangketsi, especially, were clever at this kind of work. The hopo is a large pit dug in a favourable spot, generally just the other side of a slight rise, in neighbourhoods where game is abundant, and is often used year after year. From the sides of it stiff, diverging hedges of bush and branches are run out for a considerable distance, and the beaters, sweeping a large area of country in a crescent, open at first, but gradually contracting its horns as the game approaches the hedges, manage to drive slowly forward large masses of antelope, quagga, and wildebeest. Men are suitably placed here and there outside the range of the fences, to indicate gently to the game the way they are expected to take. When they are well within the lines the men bear down on them, and by shouts urge them forward pêle mêle to the hopo, which by the rise in the ground is hidden from the leaders until too late; for the weight of the scared body behind them, always pressing on, carries the foremost ranks into the pit, which, in a successful drive, is soon filled with a heaving mass of struggling life. Numbers of the driven escape through the hedges and through the crowd, by this time close up, many of them, the quagga especially, charging the drivers, who, sitting or kneeling, cover themselves with their shields, and ply their assegais as opportunity offers, from beneath them. I should have said that some of the hunters are ambushed near the hopo, and these dispose of any animals that, coming to the surface, seem likely to escape. The southern tribes manage sometimes to kill the hippopotamus by suspending a heavy spike of iron, or of wood burnt and sharpened to a point, and weighted with a large stone. This, by an ingenious contrivance, is fastened to the branch of a tree overhanging the animal’s path as it leaves the water at night to graze, by a rope attached to a catch, the other end of the rope being brought down, fixed about a foot from the ground, across the path, and tied to one of the trees opposite. As the animal presses against the rope the catch is freed, and down comes the spike. The northerners, who live on the shores of the lakes, Kamadou particularly, kill them from canoes with spears like harpoons, which, once firmly fixed, serve to show by their shafts the direction taken by the wounded beast, and enable the men to follow him and repeat the attack until, utterly weakened from loss of blood, he is secured by ropes and drawn ashore. This plan, which seems to me to have its drawbacks and dangers, is not attempted on the rivers, and I was never an eye witness of it, even on the lakes; but I have two or three of the harpoon assegais, and this was the story of the hunting as told to Livingstone.
On the low Siloquana hills near this we made our acquaintance with the Tsétsé fly, which we were the first to bring to notice; Vardon taking or sending to England some he caught on his favourite horse. They have now been thoroughly discussed entomologically, and I would only very lightly touch upon them. The Glossina morsitans is a dusky grey, long-winged, vicious-looking fly, barred on the back with striæ, and about the size of the fly you so often see on dogs in summer. Small as he is, two to three will kill your largest ox, or your strongest horse—for the poison introduced by the proboscis is zymotic; the victims sicken in a few days, the sub-lingual glands and muscles thicken, the eyes weep, a defluxion runs from the nostrils, the coat stares, and in periods varying from a fortnight to three months death ensues. On examination after death the blood is found to have diminished wonderfully in quantity, to have become gelatinous in appearance, and to have parted with its colouring property. You may plunge, your hands into it and it runs off like tapioca, without staining them. The vital organs, lungs and heart, are flaccid and anæmic, but show no further sign of disease. The flesh has a peculiar glairy appearance. Wild animals are not affected, but all domesticated ones are, save the ass and the goat, and the calf as long as it sucks. Man escapes scot free. The flies settle on and bite him sharply, but no results follow.
Supposing the poison to be alkaline, is it not possible that the creic—an acid known to be present in the blood of all wild animals and to disappear as they become domesticated—may act as an antidote, more especially as man, on whom the poison is innocuous, shares with the donkey, &c., this prophylactic acid? This pest, like all others, is held in check by an antagonist, one of the ichneumons—a rakish-looking creature which catches and sucks it out on the wing, dropping the empty cases much as the locust bird does the locusts.
These tsétsé have caused me sad searchings of heart. The Geographical Society of Paris honoured me with their medal, ‘pour la découverte du lac ’Ngami,’ and I, in acknowledging their highly valued distinction, sent them a short sketch of the country through which we had passed, and a small bottle of the flies, with an account of their habits, habitat, and the poisonous nature of their bite. This account—probably from my confused style—was entirely misunderstood, and when the copy of the Proceedings of the Society reached me I found I had been made to attribute the death of a native chief, Sebitoani, to the poison of these insects, and also to state that the oxen were maddened by their attacks, whereas the poor things took their deathbites quite calmly—with a whisk of their tails, as is their custom with other flies—and, as I have already stated, human beings suffer no ill. I have tried to correct this impression, but fear I may not have succeeded.
When I came home I happened to meet Dr. (now Sir Richard) Quain, the great toxicologist, and by him to be introduced to Dr. Spence, to whom I told the story of the tsétsé, the result being that I was invited to attend a meeting of the Entomological Society. Doubting my power of giving any clear account before such an august assembly by word of mouth, I wrote the few particulars I had to communicate. When I entered, rather late, a gentleman was explaining the abnormal and interesting peculiarities of a beetle, which had an extra tarsus—at least I think that was the peculiarity—and that tarsus was actually fimbriated! A great deal of very learned talk and discussion followed, and I thought what a fortunate fellow I was to have written my description; but alas! my turn came, and the same savant, after holding my scrawl at every angle in the hope of deciphering the cacography, at last gave it up, saying he regretted he could not make it out, but fortunately the writer was in the room, and would perhaps kindly tell them the history of the flies of which he had sent a specimen. I longed for a repetition of the days of Korah, Dathan, and Abiram just to swallow up that old gentleman and his scarabæus; but I had to get up and explain that I was sorry if they expected me to address them in the very erudite way I had been listening to for the last hour, as I really had no idea how many (if any) tarsi my fly had, and, moreover, I was supremely ignorant whether their tarsi (if existent) were fimbriated or not. They kindly begged me to tell my tale in my own words, declaring they should much prefer it, and I did so, and was dealt with in a most friendly manner. I certainly would rather have stood the charge of a couple of lions at once than laid myself open to a catechism on tarsi and fimbriæ.
We pushed down the Limpopo beyond the Siloquana ridge four or five marches, and then crossing the river near a high rocky hill returned to the Mariqué without anything of much interest occurring; but half-way between the junction of that river with the main stream and the place where we left it to get to Livingstone’s station, I was again in trouble.