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
John Hanning Speke British Outpost to cross the Gulf of Aden and collect specimens in Somaliland for his family's natural history museum in Somerset. This was refused as Somaliland was considered rather dangerous. Speke then asked to join an expedition about to leave for Somaliland led by the already famous Richard Burton who had Lt William Stroyan and Lt. Herne recruited to come along but a recent death left the expedition one person short. Speke was accepted because he had traveled in remote regions alone before, had experience collecting and preserving natural history specimens and had done astronomical surveying. Initially the party split