Surveyed in April 1849. Scale of 1000 Yards to an Inch. A. Bedford, River Surveyor, Diamond Harbour, April 29th 1849. Lithographed & Sold by T. Black, Asiatic Lithographic Press, Calcutta.
Surveyed in Octor. 1849. Scale of 1,000 Yards to an Inch. A. Bedford, River Surveyor. Lithographed & Sold by T. Black, Asiatic Lithographic Press, Calcutta. Annotated by Barlow with note of disappearance of Auckland Island 23-27 September 1849.
Surveyed in April 1851. Scale of 1000 Yards to an Inch. A. Bedford, River Surveyor, Calcutta, May 12th 1851. Lithographed & Sold by T. Black, Asiatic Lithographic Press, Calcutta. Annotated by Barlow.
Surveyed in August 1852. Scale of 1,000 yards to an Inch. Arthur Bedford, River Surveyor, Mud Point, August 12th 1852, Beacon Sg. Vessel. Lithographed. Annotated by Barlow.
Western Siberia, Independent Tartary, Khiva, Bokhara &c. published 26 November 1838.
Scope & Content:
Insets: Continuation Of Nova Zemlia (Nova Zembla); Continuation Of Ieniseisk To The North Point Of Asia. Scales of 500 'English Miles 69.1 = one degree' [=3 inches], etc.