Proceedings of the Expedition to Explore the Northern Coast of Africa, from Tripoly Eastward; in 1821 and 1822 Comprehending an Account of the Greater Syrtis and Cyrenaica; and of the Ancient Cities Composing the Pentapolis by Captain F.W. Beechey, R.N., F.R.S., and H.W. Beechey, Esq., F.S.A