David Livingstone many newspapers of the time, and Livingstone experienced great difficulty in raising funds to further explore Africa. Nevertheless, John Kirk, Charles Meller, and Richard Thornton, the scientists appointed to work under Livingstone, did contribute large collections of botanical, ecological, geological, and ethnographic material to scientific Institutions in the United Kingdom. In January 1866, Livingstone returned to Africa, this time to Zanzibar, and from there he set out to seek the source of the Nile. Richard Francis Burton, John Hanning Speke, and Samuel Baker had identified either Lake Albert or Lake Victoria as the source (which was partially correct, as the
John Hanning Speke source) and thus also reversing himself from the position he took in the letter to Norton Shaw. In that same letter to Shaw, Burton had also stated that Speke would present his findings to the RGS as he was prevented from traveling as he was in poor health and would be in England a short time after Speke. Jeal concludes that Burton's claim of a promise from Speke to not go to the RGS was improbable. The jealousies and accusations between the two men got ever greater, further inflamed by their respective circles of friends and people who stood to