African Memoranda : 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 on the facility of Colonizing 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