Bücher der Reihe Travels in Central Africa, and Explorations of the Western Nile Tributaries 2 Volume Set

First published in 1869, this two-volume jointly authored work gives an account of a mission for the National Geographical Society undertaken by John Petherick (1813-82) and his wife Katherine (1827-77). Volume 1 focuses on the first part of the Pethericks' journey to Gondokoro in the Sudan.