Journal Kept by David Douglas During His Travels in North America, 1823-1827: Together with a Description of Thirty-Three Species of American Oaks (1914)

Together With A Description Of Thirty-Three Species Of American Oaks And Eighteen Species Of Pinus; With Appendices Containing A List Of The Plants Introduced By Douglas And An Account Of His Death In 1834. Published Under The Direction Of The Royal Horticultural Society.