Depth shown by soundings and shading. Relief shown by hachures. Proposed cuts [channels] through the mainland and through [sand] bar are shown. Coral reefs and "track of native boats" are shown. Includes inset map showing southern tip of India, northern Sri Lanka, Gulf of Mannar, and Adam's Bridge. From: Journal of the Royal Geographical Society of London. Vol. 4 (1834), pp. 1-25; held in Firestone Library. Call number: G7 .J687 v.4 1834.