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 from Zanzibar in October 1860. The expedition approached the lake from the south west but Grant was often sick and was not able to travel with Speke much of the time. As during the first trip, in this period of history, Arab slave traders had created an atmosphere of great distrust towards any foreigners entering central Africa, and most tribes either fled or fought when encountering them as they assumed all outsiders to be potential slavers. Lacking a great deal of guns and soldiers, the only thing the expedition could do was make peace offerings to locals, and both men