Chart to tell whether an Indian snake is poisonous or harmless.

Bombay [Mumbai], The Bombay Natural History Society, [1917]. Leporello binding (17.6 x 10.6 cm) with text and nine illustrations (in red and black) on a five-folded (concertina) linen-backed paper leaf (16.5 x 49.1 cm). Brown linen boards with black title. = A pocket-sized, ephemeral work, seldom found in good condition. As stated on the front board, "This chart has been compiled by Mr. S. H. Prater, of the Bombay Natural History Society, from suggestions which originated with Lieut. H. B. Hayes (Queen's Regt.), and is an abridgement from 'The Poisonous Terrestrial Snakes of India,' by Col. Wall, C.M.G., I.M.S., and has been approved and revised by Col. Wall". The British naturalist and colonel Frank Wall (1868-1950) was exclusively interested in snakes. According to Adler he wrote about 215 papers over a 30-year period. According to the text on the front board, an enlarged edition, intended as a wall-chart (no pun intended) "for the use of Hospitals, Dispensaries and Schools" was available too. One "page" toned, perhaps due to a poor paper insert of some sort, otherwise very good, clean. Adler I, pp. 71-72.