The Last Journals of David Livingstone in Central Africa, both volumes in a single file

According to Wikipedia: "David Livingstone (19 March 1813 – 1 May 1873) was a Scottish Congregationalist pioneer medical missionary with the London Missionary Society and explorer in Africa. His meeting with H. M. Stanley gave rise to the popular quotation, "Dr. Livingstone, I presume?". Perhaps one of the most popular national heroes of the late 19th century in Victorian Britain, Livingstone had a mythic status, which operated on a number of interconnected levels: that of Protestant missionary martyr, that of working-class "rags to riches" inspirational story, that of scientific investigator and explorer, that of imperial reformer, anti-slavery crusader, and advocate of commercial empire. His fame as an explorer helped drive forward the obsession with discovering the sources of the River Nile that formed the culmination of the classic period of European geographical discovery and colonial penetration of the African continent."