Following the end of the wet season,…

Following the end of the wet season, Livingstone travels two hundred and forty miles from Nyangwe—violently ill most of the way—back to Ujiji, arriving on October 23, 1871.

Although Livingstone was wrong about the Nile, he has discovered for Western science numerous geographical features, such as Lake Ngami, Lake Malawi, and Lake Bangweulu in addition to Victoria Falls..

He has filled in details of Lake Tanganyika, Lake Mweru and the course of many rivers, especially the upper Zambezi, and his observations enable large regions to be mapped which previously had been blank.

Even so, the furthest north he had reached, the north end of Lake Tanganyika, is still south of the Equator and he had not penetrated the rainforest of the River Congo any further downstream than Ntangwe near Misisi.

Livingstone will completely lose contact with the outside world for six years and will be ill for most of the last four years of his life.

Only one of his forty-four letter dispatches will make it to Zanzibar.

One surviving letter to Horace Waller, made available to the public in 2010 by its owner Peter Beard, reads: "I am terribly knocked up but this is for your own eye only, ...Doubtful if I live to see you again ..." (Livingstone's Letter from Bambarre http://emelibrary.org/livingstoneletter/ (accessed 9 November 2012))