Map of the Extratropical part of Southern Africa. Constructed by William J. Burchell, Esq., in which his own track is laid down entirely from the geographical and astronomical observations made during these Travels and the remaining parts accommodated to it, and formed mostly of new materials combined with others selected from various documents and wholly re-arranged. (See 1496. 4to in Book Catalogue). About 24 miles to 1 inch