by Henry M. (Henry Morton) Stanley
by Henry M. (Henry Morton) Stanley
by David Livingstone
by James Richardson
by David Livingstone
by Henry M. (Henry Morton) Stanley
by Hugh Clapperton, Dixon Denham, Walter Oudney
by Georg August Schweinfurth
by James Richardson
by Joel Tyler Headley, Willis Fletcher Johnson
by Sir Richard Francis Burton
by David Livingstone
by James P. (James Penny) Boyd
by Georg August Schweinfurth
by Sir Richard Francis Burton
by C. G. (Carl Georg) Schillings
by Col. A. G. Feather
by Sir Samuel White Baker
by W. Holman (William Holman) Bentley
by Gerhard Rohlfs
by Henry M. (Henry Morton) Stanley
by C. G. (Carl Georg) Schillings
by F. H. B. Lagus