The map and the lists of stations, dates, &c., have been drawn upon the plan adopted by Mr. Francis Galton, F.R.G.S. The outline of Africa, the work of Mr. Weller, F.R.G.S., contains the latest and the best information concerning the half-explored interior of the Continent. The route-map has been borrowed by permission from the laborious and conscientious compilation of Mr. Findlay, F.R.G.S., accompanying the paper forwarded by me to the Royal Geographical Society. The latter gentleman has also kindly supplied a profile of the country traversed, showing the Eastern limits of the Great Depression, and the “elevated-trough formation” of Central Africa. In conclusion, I would solicit forbearance in all that concerns certain errors of omission and commission scattered through these pages. The migratory instinct is now hurrying me towards the New World: I have, therefore, been obliged to content myself with a single revise. 10th April, E.I.U.S. Club, 14 St. James’s Square. DATES OF JOURNEYING. 1856| September |Left England. |2nd December |Sailed from Bombay. |19th December |Arrived at Zanzibar Island. 1857|6th January |Left Zanzibar the first time. |14th June |Left Zanzibar the second time. |27th June |Set out from Kaole on the coast. |7th November |Arrived at Unyanyembe of Unyamwezi. 1858|14th February |Reached Ujiji on the Tanganyika Lake. |26th April |Arrived at Uvira on the North of the Tanganyika | |Lake. |26th May |Left Ujiji. |19th June |Returned to Unyanyembe. |26th September|Left Unyanyembe. 1859|3rd February |Reached Konduchi on the coast. |4th March |Landed at Zanzibar Island. |4th May |Left Aden. |20th May |Landed at Southampton. LIST STASIMETRIC AND HYPSOMETRIC. NAMES OF KHAMBI OR STAGES MADE BY THE EAST AFRICAN EXPEDITION, AND HEIGHTS OF THE SEVERAL CRUCIAL STATIONS. FIRST REGION.