Hugh Alexander Morrison

• List of Books and of Articles in Periodicals Relating to Interoceanic Canal and Railway Routes
• The Leiter Library. A Catalogue of the Books, Manuscripts and Maps Relating Principally to America, Collected by the Late Levi Ziegler Leiter
• List of Books and of Articles in Periodicals Relating to Interoceanic Canal and Railway Routes : (Nicaragua; Panama, Darien, and the Valley of the Atrato; Tehuantepec and Honduras; Suez Canal)