24th September, 1866.—We went only 2-1/2 miles to the village of Marenga, a very large one, situated at the eastern edge of the bottom of the heel of the Lake. The chief is ill of a loathsome disease derived direct from the Arabs. Raised patches of scab of circular form disfigure the face and neck as well as other parts. His brother begged me to see him and administer some remedy for the same complaint. He is at a village a little way off, and though sent for, was too ill to come or to be carried. The tribe is of Babisa origin. Many of these people had gone to the coast as traders, and returning with arms and ammunition joined the Waiyau in their forays on the Manganja, and eventually set themselves up as an independent tribe. The women do not wear the lip-ring, though the majority of them are Waiyau. They cultivate largely, and have plenty to eat. They have cattle, but do not milk them.
The bogs, or earthen sponges,[25] of this country occupy a most important part in its physical geography, and probably explain the annual inundations of most of the rivers. Wherever a plain sloping towards a narrow opening in hills or higher ground exists, there we have the conditions requisite for the formation of an African sponge. The vegetation, not being of a heathy or peat-forming kind, falls down, rots, and then forms rich black loam. In many cases a mass of this loam, two or three feet thick, rests on a bed of pure river sand, which is revealed by crabs and other aquatic animals bringing it to the surface. At present, in the dry season, the black loam is cracked in all directions, and the cracks are often as much as three inches wide, and very deep. The whole surface has now fallen down, and rests on the sand, but when the rains come, the first supply is nearly all absorbed in the sand. The black loam forms soft slush, and floats on the sand. The narrow opening prevents it from moving off in a landslip, but an oozing spring rises at that spot. All the pools in the lower portion of this spring-course are filled by the first rains, which happen south of the equator when the sun goes vertically over any spot. The second, or greater rains, happen in his course north again, when all the bogs and river-courses being wet, the supply runs off, and forms the inundation: this was certainly the case as observed on the Zambesi and Shiré, and, taking the different times for the sun's passage north of the equator, it explains the inundation of the Nile.
25th September, 1866.—Marenga's town on the west shore of Lake Nyassa is very large, and his people collected in great numbers to gaze at the stranger. The chief's brother asked a few questions, and I took the occasion to be a good one for telling him something about the Bible and the future state. The men said that their fathers had never told them aught about the soul, but they thought that the whole man rotted and came to nothing. What I said was very nicely put by a volunteer spokesman, who seemed to have a gift that way, for all listened most attentively, and especially when told that our Father in heaven loved all, and heard prayers addressed to Him.
Marenga came dressed in a red-figured silk shawl, and attended by about ten court beauties, who spread a mat for him, then a cloth above, and sat down as if to support him. He asked me to examine his case inside a hut. He exhibited his loathsome skin disease, and being blacker than his wives, the blotches with which he was covered made him appear very ugly. He thought that the disease was in the country before Arabs came. Another new disease acquired from them was the small-pox.
26th September, 1866.—An Arab passed us yesterday, his slaves going by another route across the base of Cape Maclear. He told Musa that all the country in front was full of Mazitu; that forty-four Arabs and their followers had been killed by them at Kasungu, and he only escaped. Musa and all the Johanna men now declared that they would go no farther. Musa said, "No good country that; I want to go back to Johanna to see my father and mother and son." I took him to Marenga, and asked the chief about the Mazitu. He explained that the disturbance was caused by the Manganja finding that Jumbé brought Arabs and ammunition into the country every year, and they resented it in consequence; they would not allow more to come, because they were the sufferers, and their nation was getting destroyed.
I explained to Musa that we should avoid the Mazitu: Marenga added, "There are no Mazitu near where you are going;" but Musa's eyes stood out with terror, and he said, "I no can believe that man." But I inquired, "How can you believe the Arab so easily?" Musa answered, "I ask him to tell me true, and he say true, true," &c.
When we started, all the Johanna men walked off, leaving the goods on the ground. They have been such inveterate thieves that I am not sorry to get rid of them; for though my party is now inconveniently small, I could not trust them with flints in their guns, nor allow them to remain behind, for their object was invariably to plunder their loads.
[Here then we have Livingstone's account of the origin of that well-told story, which at first seemed too true. How Mr. Edward Young, R.N., declared it to be false, and subsequently proved it untrue, is already well known. This officer's quick voyage to Lake Nyassa reflected the greatest credit on him, and all hearts were filled with joy when he returned and reported the tale of Livingstone's murder to be merely an invention of Musa and his comrades.]
I ought to mention that the stealing by the Johanna men was not the effect of hunger; it attained its height when we had plenty. If one remained behind, we knew his object in delaying was stealing. He gave what he filched to the others, and Musa shared the dainties they bought with the stolen property. When spoken to he would say, "I every day tell Johanna men no steal Doctor's things." As he came away and left them in the march, I insisted out his bringing up all his men; this he did not relish, and the amount stolen was not small. One stole fifteen pounds of fine powder, another seven, another left six table-cloths out of about twenty-four; another called out to a man to bring a fish, and he would buy it with beads, the beads being stolen, and Musa knew it all and connived at it; but it was terror that drove him away at last.
With our goods in canoes we went round the bottom of the heel of Nyassa, slept among reeds, and next morning (27th) landed at Msangwa, which is nearly opposite Kimsusa's, or Katosa's, as the Makololo called him. A man had been taken off by a crocodile last night; he had been drinking beer, and went down to the water to cool himself, where he lay down, and the brute seized him. The water was very muddy, being stirred up by an east wind, which lashed the waves into our canoes, and wetted our things. The loud wail of the women is very painful to hear; it sounds so dolefully.