[Part of Bhutan, Assam and Bengal, 1°25'W–3°E of Calcutta, 25°45'N–28°N, from Rangpur to Thimbu (Taschi Chho Dzong). Scale approximately 1:1,500,000.] Northward extension of map IX of A Bengal Atlas to Tashi Chho Dzong.
[Part of western India, 73°E–76°E, 13°N–19°N, from Poona to Bidnur. Scale approximately 1:3,000,000.] Revision of part of south-western sheet of A Map of Hindoostan.