Association. London, 1810.] With the assistance of their distinguished
Associate, Major Rennell, they were now proceeding to trace the
principal geographical outlines of Northern Africa; and were
endeavouring to ascertain the course of the great inland river Joliba or
Niger, and to obtain some authentic information concerning Tombuctoo, a
principal city of the interior and one of the great marts of African
commerce.

In the course of these enquiries, the Association, since their first
establishment in 1788, had employed several persons, well qualified for
such undertakings, upon missions into various parts of the African
Continent. Several of these were known to have perished, either as
victims of the climate, or in contests with the natives; [Footnote: The
persons who had been sent out prior to this period, were Mr. Ledyard,
Mr. Lucas, Major Houghton, and Mr. Horneman: subsequently to which,
several others have been employed; viz. Mr. Nichols, Mr. Bourcard, &c.]
and intelligence had lately been received of the death of Major
Houghton, who had been sent out to explore the course of the Niger, and
to penetrate, if possible, to Tombuctoo and Houssa. The Association
appear to have found considerable difficulty in supplying Major
Houghton's place; and had made known their readiness to give a liberal
compensation to any person, competently qualified, who might be willing
to proceed on this important and arduous mission.

The attention of Park was naturally drawn to this subject, in
consequence of his connection with Sir Joseph Banks, who had received
him with great kindness and cordiality on his return from the East
Indies, and with whom he was now in habits of frequent intercourse. Sir
Joseph Banks was one of the most active and leading members of the
African Association, and with his accustomed zeal for the promotion of