Voyages of discovery and research within the Arctic Regions, from the year 1818 to the present time : under the command of the several naval officers employed by sea and land in search of a Northwest Passage from the Atlantic to the Pacific, with two attempts to reach the North Pole / abridged and arranged from the official narratives, with occasional remarks, by Sir John Barrow, Bart., F.R.S., author of "A chronological history of voyages into the Artic regions".