(World on gnomonic projection. VI. From South Pole to 450 S. Lat.). No.6. Published by Baldwin & Cradock, 47 Paternoster Row June 1831. Under the superintendence of the Society for the Diffusion of Useful Knowledge. Engraved by J. & C. Walker.

• Main Authors: Society for the Diffusion of Useful Knowledge (Great Britain), J. & C. Walker
• Other Authors: Rumsey Collection
• Format: Map
• Language: unknown
• Published: 1831
• Subjects: South Pole; Baldwin; South pole
• Online Access: http://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~20848~520041; http://www.davidrumsey.com/rumsey/Size1/D0052/00521041.jpg

Engraved map. No. 6 of 6 sheets. Country boundaries hand col. Relief shown by hachures. Shows tidal information including cotidal isolines. Issued earlier and separately. Title from contents page. The SDUK, as the Society was known, produced inexpensive maps to encourage broad use in education. The maps in these two volumes were issued in parts over several years. The city plans are of particular interest, with vignettes and great detail. The gnomonic star maps were issued separately in this edition in their own covers. This is the second edition, the first being by Baldwin and Cradock, with the maps issued in numbers and later bound as a set. Rumsey Collection copy originally issued without the 6 "World on a gnomonic projection" maps; copies of them have been laid in. Atlas is bound in half leather dark brown cloth covered boards with "Maps. Vol. 1," "Maps. Vol. 2" stamped in gold on the spines. Maps with outline color; geological map of England and Wales hand colored in full color. Phillips, 794.