John Hanning Speke Furious and arrived in England on 8 May 1859. Burton was not far behind and he arrived on 21 May 1859. Now further disagreements developed; Burton maintained that they had promised each other in Aden not to make public announcements till they both were back in England and Burton accused Speke of a breach of promise by publicly claiming the source of the Nile was found on their trip. Burton now turned against the theory that Lake Victoria was the source of the Nile (and now said the river flowing "out" of the north side of Lake Tanganyika was the
John Hanning Speke gain from the feud such as book publishers and newspapers. Burton was still extremely weak and once he appeared in front of a committee of the RGS he was not able to make a convincing case for his leading a second expedition to settle the outstanding matters about the Nile. The rift widened, and perhaps became irreversible, when Speke was chosen to lead a subsequent expedition instead of Burton. The two presented joint papers concerning the expedition to the Royal Geographical Society on 13 June 1859. Together with James Augustus Grant, Speke left Portsmouth on 27 April 1860 and departed