Lion's fat smeared on the tails of oxen taken through a country abounding in tsetse, or bungo, is a sure preventive; when I heard of this, I thought that lion's fat would be as difficult of collection as gnat's brains or mosquito tongues, but I was assured that many lions are killed on the Basango highland, and they, in common with all beasts there, are extremely fat: so it is not at all difficult to buy a calabash of the preventive, and Banyamwezi, desirous of taking cattle to the coast for sale, know the substance, and use it successfully (?). _11th August, 1871._--Came on by a long march of six hours across plains of grass and watercourses, lined with beautiful trees, to Kassessa's, the chief of Mamohela, who has helped the Arabs to scourge several of his countrymen for old feuds: he gave them goats, and then guided them by night to the villages, where they got more goats and many captives, each to be redeemed with ten goats more. During the last foray, however, the people learned that every shot does not kill, and they came up to the party with bows and arrows, and compelled the slaves to throw down their guns and powder-horns. They would have shown no mercy had Manyuema been thus in slave power; but this is a beginning of the end, which will exclude Arab traders from the country. I rested half a day, as I am still ill. I do most devoutly thank the Lord for sparing my life three times in one day. The Lord is good, a stronghold in the day of trouble, and He knows them that trust in Him. [The brevity of the following notes is fully accounted for: Livingstone was evidently suffering too severely to write more.] _12th August, 1871._--Mamohela camp all burned off. We sleep at Mamohela village. _13th August, 1871._--At a village on the bank of River Lolindi, I am suffering greatly. A man brought a young, nearly full-fledged, kite from a nest on a tree: this is the first case of their breeding, that I am sure of, in this country: they are migratory into these intertropical lands from the south, probably. _14th August, 1871._--Across many brisk burns to a village on the side of a mountain range. First rains 12th and 14th, gentle; but near Luamo, it ran on the paths, and caused dew. _15th August, 1871._--To Muanambonyo's. Golungo, a bush buck, with stripes across body, and two rows of spots along the sides (?) _16th August, 1871._--To Luamo River. Very ill with bowels. _17th August, 1871._--Cross river, and sent a message to my friend. Katomba sent a bountiful supply of food back. _18th August, 1871._--Reached Katomba, at Moenemgoi's, and was welcomed by all the heavily-laden Arab traders. They carry their trade spoil in three relays. Kenyengeré attacked before I came, and 150 captives were taken and about 100 slain; this is an old feud of Moenemgoi, which the Arabs took up for their own gain. No news whatever from Ujiji, and M. Bogharib is still at Bambarré, with all my letters.