John Hanning Speke of the way. Once Speke and Burton were back on the coast they went by ship to Zanzibar and then traveled to Aden. When back at the coast Burton had written a letter to Norton Shaw of the Royal Geographical Society (which had partially sponsored the journey) in which Burton enclosed a map of Lake Victoria made by Speke and wrote "there are grave reasons for believing it (the map) to be the source of the principal feeder of the White Nile." Once in Aden, Burton was not granted a medical certificate to travel and thus Speke left on HMS
Hamites language, culture, and much of their physiognomy as they intermarried with the local Bantus. The British explorer John Hanning Speke recorded one such account from a Wahuma governor in his book, "Journal of the Discovery of the Source of the Nile". According to Augustus Henry Keane, the Hima King Mutesa I also claimed Oromo (Galla) ancestors and still reportedly spoke an Oromo idiom, though such Hamitic-Semitic language had long since died out elsewhere in the region. The missionary R. W. Felkin, who had met the ruler, remarked that Mutesa "had lost the pure Mhuma features through admixture of Negro blood,