Alexander Theodor von Middendorff was a Russian zoologist and explorer of Baltic German and Estonian extraction. He was known for his expedition in 1843–45 to the extreme north and east of Siberia, de
von Middendorff c. 1880
Coat of arms of the Middendorff family [et], in the Baltic Coat of arms book by Carl Arvid von Klingspor in 1882.
Permafrost occurrences and southern limit of permafrost, from Karl Ernst von Baer's instructions to Middendorff, 1843
Baltisches Wappenbuch, is a book detailing the coats of arms of Baltic-German noble families. The book was published in 1882 Stockholm by F. & G. Beijer. It was edited by Carl Arvid von Klingspor and