_30th July, 1868._--We commenced our march back, being eager to get to Chikumbi's in case Mohamad should go thence to Katanga. We touched at Mapuni's, and then went on to the Molongosi. Clouds now began to cover the sky to the Mpanda, which has fifteen yards of flood, though the stream itself is only five yards wide, then on to the Mato and Moiegge's stockade, where we heard of Chikumbi's attack on Kombokombo's. Moiegge had taken the hint, and was finishing a second line of defence around his village: we reached him on the 1st August, 1868, and stopped for Sunday the 2nd: on the 3rd back to the Rofubu, where I was fortunate enough to hire a canoe to take me over. In examining a tsetse fly very carefully I see that it has a receptacle at the root of the piercer, which is of a black or dark-red colour; and when it is squeezed, a clear fluid is pressed out at its point: the other two parts of the proboscis are its shield, and have no bulb at the base. The bulb was pronounced at the Royal Society to be only muscle, but it is curious that muscle should be furnished where none is needed, and withheld in the movable parts of the shield where it is decidedly needed. _5th August, 1868._--Reach Kombokombo, who is very liberal, and pressed us to stay a day with him as well as with others; we complied, and found that Mohamad had gone nowhere. _7th August, 1868._--We found a party starting from Kizinga for the coast, having our letters with them; it will take five months to reach the sea. The disturbed state of the country prevented parties of traders proceeding in various directions, and one that set off on the same day with us was obliged to return. Mohamad has resolved to go to Manyuema as soon as parties of his men now out return: this is all in my favour; it is in the way I want to go to see the Lualaba and Lufira to Chowambe. The way seems opening out before me, and I am thankful. I resolved to go north by way of Casembe, and guides were ready to start, so was I; but rumours of war where we were going induced me to halt to find out the truth: the guides (Banyamwezi) were going to divine, by means of a cock, to see if it would be lucky to go with me at present. The rumours of danger became so circumstantial that our fence was needed: a well was dug inside, and the Banyamwezi were employed to smelt copper as for the market of Manyuema, and balls for war. Syde bin Omar soon came over the Luapula from Iramba, and the state of confusion induced the traders to agree to unite their forces and make a safe retreat out of the country. They objected very strongly to my going away down the right bank of the Luapula with my small party, though it was in sight, so I resolved to remain till all went.