found: On quebracho bark (Aspidosperma quebracho), 1880:p. 3 (Dr. Adolf Hansen, Assistant at the Botanic Institute of Eriangen)
found: De Gruyter World Biographical Information System, January 27, 2017(Adolf Hansen; Other Name(s): auch Adolph; Gender: male; birth: 1851; death: 1920; Occupation: Professor der Botanik; Occupation classification: Biologists, Zoologists, Botanists; Prof., Dr. phil.)
found: Wikipedia, January 27, 2017, page for Adolph Hansen(Karl Adolph Hansen (1851 in Hamburg--1920 in Giessen) was a German botanist; professor of botany at the Justus Liebig-Universität Giessen 1891-1920)