Memorandum by Professor Thomas Stewart Traill on a balloon constructed by the Aeronaut, William Saddler in 1823., [1823, or after.], MS.19400. Correspondence, diaries, and literary papers of Thomas Stewart Traill, Professor of Medical Jurisprudence at Edinburgh University, and of his family., MSS.19329-19405. National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/43602 Accessed September 23, 2024.