My intention was to examine thoroughly all the great rivers of Abyssinia that were tributaries to the Nile. These were the Settite, Royan, Angrab, Salaam, Rahad, Dinder, and the Blue Nile. If possible, I should traverse the Galla country, and crossing the Blue Nile, I should endeavor to reach the White Nile. But this latter idea I subsequently found impracticable, as it would have interfered with the proper season for my projected journey up the White Nile in search of the sources.