Johannes Justus Rein (1835–1912)

German geographer. Doctorate, Rostock, 1861. Taught at the trade school in Frankfurt am Main. Director of the Senkenbergische Naturforschende Gesellschaft, 1868–73. Travelled in Japan on behalf of the Prussian government to research trade and industry, 1873–5. Professor of geography, Marburg, 1876; Bonn, 1883.