This combination map of Dominica and Martinique, two neighboring islands in the Lesser Antilles, was published in the 1817 edition of Thomson's ''New General Atlas''. Both islands were originally settled by the French, but at this time Dominica was British while Martinique was French. These maps are primarily topographical, recording very few human settlements, but mountains, rivers, inlets, bays, capes, and other coastal features are recorded in detail.