By Mr. Park’s discoveries, a gate is opened to every commercial nation to enter and trade from the west to the eastern extremity of Africa. The navigable parts of the rivers Gambia and Niger are not so far distant, but that great facilities of trade may thence be derived, aided by the establishment of intermediate stations and points of intercourse. A considerable traffic is carried on by the natives for ostrich feathers, drugs, ivory, and gold, even without such advantage. On due direction and exertions of British credit and enterprise, it is difficult to imagine the possible extent to which the demand for our country’s manufactures might arrive, from such vast and populous countries in the bosom of which _gold_, the great medium of commerce, is readily found; and which would be sought for and brought into circulation with new avidity and success, in proportion as objects for the exchange, became known, desirable, and necessary to the people. This subject has already been recommended by the Society, to the attention of Government; and on the return of peace, it is not doubted, but it will be treated with a consideration and regard, suitable to the important interests which it involves. When the thorny track of a Park or a Horneman is become the beaten road of the merchant, advantages of another sort will quickly follow; and the intercourse extend to the instruction of the naturalist and philosopher, to the promotion of civilization, and to the increase of the general stock of human knowledge and happiness. Contemplating such accomplishment of the wise and benevolent purposes of their Institution, the patriotic members of this Society cannot but look back with exultation to the hour of its establishment, and they will with satisfaction recapitulate its means and progress, towards such happy termination of their labours. Of those who transmitted accounts which they had received, concerning the people and country of Africa, Mr. Ledyard and Mr. Lucas were specially employed, with the further intent of progress into the heart of the country; for the purpose of ascertaining the truth of these recitals, the correcting them on personal information, and the elucidating, on actual survey, any future plan for turning the knowledge thence derived to account. Mr. Ledyard died at Cairo, ere his eager and enterprising spirit could even start towards its object: Mr. Lucas, deterred by impending difficulties and dangers, proceeded not further than to Mesurata, seven days journey S. E. of Tripoly; there collected informations from the Shereef Imhammed, and traders of Fezzan, and then measured his road back to Tripoly; and shortly after returned to England. The Society, with that persevering spirit which ever distinguishes manly minds, engaged on sound principles, and for noble purposes, were not appalled by the death of one emissary, or the failure of another.