Brief von Carl Friedrich Naumann an Monsieur C. Wesselowsky, Secretaire perpetuel de l'Académie Imperiale des sciences, à St. Petersbourg vom 8. April 1858 - XVII 585 8. (21).
Central Europe ; By Friedrich Naumann. With an Introd. by W[illiam] J[ames] Ashley, Prof. Transl. by Christabel M. Meredith