river Niger in the sea in the Bight
of Benin, where, from similar authorities, it was placed by me in 1820
and 1821, and where actual observation by Englishmen has lately clearly
established the fact that it does terminate. In the upper and middle
parts of its course the longitudes were erroneous, having adopted Major
Rennell's delineation of Western Africa as a guide; but in 1839 the
whole of that quarter of Africa was narrowly examined, and the courses
of the western rivers reduced to their proper positions, as delineated
in my large map of Africa constructed in that year, to which, with the
"Geographical Survey of Africa," for which it was made, the reader is
referred for further and particular information on all these subjects.

With these observations, I proceed to bring before the reader
geographical information concerning eastern and central Africa of the
highest and most gratifying importance, and obtained by the researches
of different voyagers and travellers within the last four years.
Foremost amongst these ranks, the expedition sent by the present Viceroy
of Egypt to explore the Bahr-el-Abiad, or White River, above its
junction with the Blue River, from Khartoum upwards and southwards;
after it, the interesting travels of Messrs Krapf and Isenberg, two
missionaries from the Church Missionary Society, from Tajura to Ankobar,
from Ankobar south-west to the neighbourhood of the sources of the
Hawash; and after that, Mr Krapf's journey from Ankobar north by Lake
Haik, through Lasta to Antalow, and thence to Massouah on the Red Sea.
Next, the interesting accounts collected by M. Lefebvre and M.
D'Abbadie, concerning the countries in some parts of the more eastern
horn of Africa; and last, and the most specific and important of the
whole, the accounts received of the country of Adel, and the countries
and rivers in and south of Shoa, and those from the Blue Nile in Gojam
and Damot to the sea at the mouth of the Jub, under the equator, by
Major Harris, late British ambassador to the King of Shoa.

As the present article is accompanied by a map, constructed after great
labour, and engraved most carefully by Mr Arrowsmith, the general
outline of the whole may here be deemed sufficient, without lengthened
discussion and observation.

The Egyptian expedition alluded to started from Khartoum (now become a
fine town) at the close of the wet season in 1839. It consisted of four
or five small sailing vessels, some passag