Travels in Siberia: including excursions northwards, down the Obi, to the Polar Circle, and southwards to the Chinese frontier / By Adolph Erman. Translated from the German, by William Desborough Cooley.

Licence: Public Domain Mark

Credit: Travels in Siberia: including excursions northwards, down the Obi, to the Polar Circle, and southwards to the Chinese frontier / By Adolph Erman. Translated from the German, by William Desborough Cooley. Source: Wellcome Collection.