The first act of the missionaries on arriving at their destination was to have an interview with the chief, and ask whether he desired a missionary. Having an eye to the beads, guns, and other things, of which white men seemed always to have an ample store, the chief and his men gave them a cordial welcome, and Livingstone next proceeded to make a purchase of land. This, like Abraham with the sons of Heth, he insisted should be done in legal form, and for this purpose he drew up a written contract to which, after it was fully explained to them, both parties attached their signatures or marks. They then proceeded to the erection of a hut fifty feet by eighteen, not getting much help from the Bakhatlas, who devolved such labors on the women, but being greatly helped by the native deacon, Mebalwe. All this Livingstone and his companion had done on their own responsibility, and in the hope that the Directors would approve of it. But if they did not, he told them that he was at their disposal "to go anywhere--_provided it be_ FORWARD."
The progress of medical and scientific work during this period is noted in a letter to Dr. Risdon Bennett, dated 30th June, 1843. In addition to full details of the missionary work, this letter enters largely into the state of disease in South Africa, and records some interesting cases, medical and surgical. Still more interesting, perhaps, is the evidence it affords of the place in Livingstone's attention which began to be occupied by three great subjects of which we shall hear much anon--Fever, Tsetse, and "the Lake." Fever he considered the greatest barrier to the evangelization of Africa. Tsetse, an insect like a common fly, destroyed horses and oxen, so that many traders lost literally every ox in their team. As for the Lake, it lay somewhat beyond the outskirts of his new district, and was reported terrible for fever. He heard that Mr. Moffat intended to visit it, but he was somewhat alarmed lest his friend should suffer. It was not Moffat, but Livingstone, however, that first braved the risks of that fever swamp.
A subject of special scientific interest to the missionary during this period was--the desiccation of Africa. On this topic he addressed a long letter to Dr. Buckland in 1843, of which, considerably to his regret, no public notice appears to have been taken, and perhaps the letter never reached him. The substance of this paper may, however, be gathered from a communication subsequently made to the Royal Geographical Society[20] after his first impression had been confirmed by enlarged observation and discovery. Around, and north of Kuruman, he had found many indications of a much larger supply of water in a former age. He ascribed the desiccation to the gradual elevation of the western part of the country. He found traces of a very large ancient river which flowed nearly north and south to a large lake, including the bed of the present Orange River; in fact, he believed that the whole country south of Lake 'Ngami presented in ancient times very much the same appearance as the basin north of that lake does now, and that the southern lake disappeared when a fissure was made in the ridge through which the Orange River now proceeds to the sea. He could even indicate the spot where the river and the lake met, for some hills there had caused an eddy in which was found a mound of calcareous tufa and travertine, full of fossil bones. These fossils he was most eager to examine, in order to determine the time of the change; but on his first visit he had no time, and when he returned, he was suddenly called away to visit a missionary's child, a hundred miles off. It happened that he was never in the same locality again, and had therefore no opportunity to complete his investigation.