John Hanning Speke But Burton was too weak to make the trip and thus stayed in base camp when the main caravan halted again at Kazeh. Speke went on a 47-day side trip that was 452 miles up and down in which he took 34 men with Bombay and Mabruki as his captains and on 30 July 1858 became the first European to see Lake Victoria and the first to map it. It was this lake that eventually proved to be the source of the River Nile. However, much of the expedition's survey equipment had been lost at this point and thus vital
John Hanning Speke he found hard and time consuming as he was not naturally a gifted writer. He failed to give a good and full report to the RGS for many months and thus in effect was not defending his positions of discovery. In addition Speke had a public dispute with the Pethericks who had by and large acted according to their RGS instructions but Speke had felt they had not. All this led Roderick Murchison, president of the Royal Geographical Society, to start disliking Speke and a third expedition, led by Speke, was becoming less likely as it would have to be