Burton and Speke (novel) incompetent, unable even to learn how to use simple measuring devices, vital to serious exploration. Despite these obvious drawbacks however, it is Speke who eventually discovers Lake Victoria as the source of the Nile, due to Burton falling seriously ill with malaria and having to be left behind in an Arab trading camp. Here their mutual antipathy turns to bitter enmity when Speke, breaking his word to Burton, claims sole credit for the discovery. Unfortunately for Speke his lack of accurate readings and sloppy map making skills lead the scientific world to doubt his word. Speke dies from a self-inflicted
Hamites races were too broad to have stemmed from a single common ancestor, but were instead consistent with separate racial origins. In his "Crania Aegyptiaca" (1844), Morton analyzed over a hundred intact crania gathered from the Nile Valley, and concluded that the ancient Egyptians were racially akin to Europeans. His conclusions would establish the foundation for the American School of anthropology, and would also influence proponents of polygenism. In the second half of the 19th century, the British explorer John Hanning Speke would further popularize the ancient Hamitic peregrinations in his publications on his search for the source of the Nile