Julius Theodor Christian Ratzeburg

Julius Theodor Christian Ratzeburg.
Teachers of the school of forestry in Neustadt-Eberswalde around 1868 (from left): Robert Hartig (embracing Peter Danckelmann), unknown, Julius Theodor Christian Ratzeburg, Bernhard Danckelmann, Adolf Remelé, Wilhelm Schneider and Wilhelm Schütze
Image from Die Waldverderber und ihre Feinde

Julius Theodor Christian Ratzeburg (16 February 1801– 24 October 1871) was a German zoologist, botanist, entomologist, and forester.