A voyage to Abyssinia, and travels into the interior of that country, executed under the orders of the British government, in the years 1809 and 1810; in which are included, an account of the Portugese settlements on the east coast of Africa, visited in the course of the voyage; and a concise narrative of late events in Arabia Felix. And some particulars respecting the aboriginal African tribes, extending from Mosambique to the borders of Egypt; together with vocabularies of their respective lan