Amongst the states mentioned, were Kashna, Kano, Daura, Solan, Noro, Nyffe, Cabi, Zanfara and Guber.
Most or all of these were tributary to Bornou, described as decidedly the most powerful kingdom in central Africa, and which really was so regarded before the rise of the Fellatah empire caused in this respect, a remarkable change.

The Niger, according to the unanimous belief in the northern provinces, was said to flow from Timbuctoo eastward through Houssa, and holding the same direction till it joined or rather became the Bahr-elabiad, the main stream of the Egyptian Nile.

Prevalent as this opinion is amongst the Arabs, late discoveries have proved it to be decidedly erroneous; the river or rivers which water Houssa, being wholly distinct from that great stream which flows through Bambarra and Timbuctoo.
Horneman, after remaining some time at Mourzouk, had resolved to join a caravan about to proceed southwards into the interior, when observing that the cavalcade consisted almost wholly of black traders, any connexion or intercourse with whom was likely to afford him little favour in the eyes of the Moors, he was induced to forego this purpose; more especially as there was the greatest reason to apprehend obstruction in passing through the country of the Turiacks, then at war with Fezzan.

He was informed besides, that caravans from Bornou occasionally terminated their journey at Mourzouk, again returning south; by which under more propitious circumstances he hoped to accomplish his object.

These considerations determined him to postpone his departure, resolving in the mean while, with the view of forwarding his despatches to the association, to visit Tripoli, where, however, he did not arrive till the 19th August, 1799, having been detained a considerable time by sickness.