Detailed map of India and Sri Lanka, extending to the Himalayas.
Shows towns, islands, rivers, mountains, gulfs, bays, etc. Large inset of the Delta of the Ganges. Tables show British, French, Portuguese and Danish Possessions and Independent States.
This map is from the 1850 Thomas Cowperthwait edition of S A Mitchell's New Universal Atlas. The atlas would become the most popular American atlas between 1834 and 1860, published annually, first by Tanner and later by Mitchell, Cowperthwait, and DeSilver.
Tanner's career as a mapmaker began in the early 19th Century. He had a hand in publishing many of the most important American maps of the first half of the 19th Century. His business was carried on by his son Thomas and Henry Carey and flourished until the middle of the 19th Century.