Geographical Notices; Reprint of a Tract, by Nicolaus Sillacius, (A. D. 1494), on the Second Voyage of Columbus: Voyage Around the World of the Austrian Frigate Novara, Dr. Hayes’s Proposed Arctic Journey, Journal of the American Geographical and Statistical Society: Explorations in the Amoor Region, 402.- Khanikoff’s Travels in Persia

Gilman, D. C. (1860). Geographical Notices; Reprint of a Tract, by Nicolaus Sillacius, (A. D. 1494), on the Second Voyage of Columbus: Voyage around the World of the Austrian Frigate Novara, Dr. Hayes’s Proposed Arctic Journey, Journal of the American Geographical and Statistical Society: Explorations in the Amoor Region, 402.- Khanikoff’s Travels in Persia. American Journal of Science, s2-29(87), 400–410. https://doi.org/10.2475/ajs.s2-29.87.400