The World's Columbian Exposition | Edward E. Ayer | Collectors and Collections, Private and Curatorial | Endowed Acquisition Funds | International Publication Exchange Several notable zoologists enriched the Library's holdings in their special disciplines by contributions during their lives and by bequest of their collections. Karl Patterson Schmidt (1890-1957), Curator of Herpetology from 1922 and Curator of Zoology from 1941, was a thorough bibliographer and collector. At the time of his death, his book and reprint collections were virtually exhaustive. Schmidt's manuscripts and papers, held among the Library's Special Collections, contain considerable material documenting his pursuit of book collecting. Wilfred Hudson Osgood (1875-1947), Curator of Zoology from 1909 to 1941, made similar contributions to the Library's holdings in mammalogy and ornithology. His personal collection contained many presentation copies of important works and included numerous editions of the works of Linnaeus and other eighteenth-century authors. The bequest of the library of Henry Boardman Conover (1892-1950) built further on the strengths of the Edward Ayer Ornithology Collection. Conover, who became a Trustee of the Museum in 1941, had been a Research Associate in ornithology since 1924. His collection was especially strong in modern imprints, but also filled several gaps in the earlier literature of ornithology. In the 1930's Museum President Stanley Field presented the Library with his choice collection of books documenting the history of the British presence in North America. This collection contains first editions of the published narratives of British voyages of discovery, from Anson to Cook, Vancouver, Franklin and Hearne. Exploration of the interior of the continent is represented by Jonathan Carver and Lewis and Clark, and by the important ethnographic works of Schoolcraft, M'Kenney and Hall, and Edward S. Curtis. This is a distinctive personal collection, notable also for its many fine bindings, both in original states and in careful restorations.