African memoranda [electronic resource] : relative to an attempt to establish a British settlement on the island of Bulama, on the western coast of Africa, in the year 1792 : with a brief notice of the neighbouring tribes, soil, productions, &c. and some observations of the facility of colonising that part of Africa, with a view to cultivation, and the introduction of letters and religion to its inhabitants, but more particularly as the means of gradually abolishing African slavery / by Philip Beaver.