Bombay, The Bombay Natural History Society, 1925. Two papers in three. 8vo (24.5 x 16.6 cm). 38 [16; 20; 2] pp.; 2 (0; 1; 1) lithographed plates, several text illustrations and tables. Combined extracts. Marbled paper spine cover.

One of only a few works on the snakes of Assam, a herpetologically lesser-known region in the upper eastern part of India, bordering Buthan. The author, the British naturalist and ophiologist Frank Wall (1868-1950), describes three new species in the second paper, and another one in the third. The plates are excellent. Published in the Society's Journal, Vol. 19. Without wrappers, otherwise very good, clean. Rare, as most of Wall's works, which are renowned for their beautifully detailed illustrations.