This is a fine example of the 1840 Society for the Diffusion of Useful Knowledge or S.D.U.K. map of the islands of the Pacific Ocean or Polynesia. Essentially twenty maps on one sheet, it covers the Mariana Islands or Ladrones, the Pelew Islands or Palaos, Gilbert Islands or Scarborogh Range, Otdia or Romanzoff Group, Marshall Islands, Galapagos Islands, Marquesas or Mendana Archipelago, Sandwich Islands, Samoa or Navigator Islands, Tonga-Tabou Islands, Tonga or Friendly Islands, Fiji Islands, Santa Cruz Island, Vanikoro Island, The Low Archipelago, Otaheite or Tahiti, Cooks or Hervey Isles, Pitcairn Island, Juan Fernandez, Norfolk Island and, in a large inset, the Admiralty Isles, New Ireland or Tombara, New Britain or Birara and Salomon Islands. Also notes the dates of discovery as well as the dates the islands were ceded or settled by the British. This map was originally copyrighted in 1840, but was issued in Volume two of Chapman and Hall's 1844 edition of Maps of the Society for the Diffusion of Useful Knowledge. It was engraved by John Walker of J. and C. Walker.