“A Letter from Alexander Von Humboldt to Joseph Albert Wright – Archival Traces”. HiN - Alexander von Humboldt in the Net. International Review for Humboldt Studies 22, no. 43 (June 22, 2021): 5–12. Accessed March 28, 2026. https://www.hin-online.de/index.php/hin/article/view/319.