John Hanning Speke arrange a better relationship for Mere with another man, without success it seems. Finally, given permission by Mutesa in June 1862 to leave, Speke then travelled down the Nile now reunited with Grant. Because of travel restrictions placed by the local chieftains, slave raiding parties, tribal wars and the difficulty of the terrain, Speke was not able to map the entire flow of the Nile from Lake Victoria north. Why he did not make more efforts to do so is not clear, but the enormous hardships of the journey must have played a large role. By January 1863 Speke and
Lake Burigi are armies of black mosquitoes. Lake fish were infested with guinea worm at the time of Stanley's expedition. Lake Burigi Lake Burigi (originally Lueor-lo-Urigi, meaning "White Lake of Urigi") is an endorheic lake in the Karagwe district, Kagera Region of Tanzania. Parts of the lake and its shore are situated within the Burigi Game Reserve. Visited by Dr. Hans Meyer's East African expedition, its name on maps of the time was Urigi. The lake's discovery is attributed to Capt. John Hanning Speke, who name it Lueor-lo-Urigi ("White Lake of Urigi"). The lake is long and wide. It has an elongated