The vacancy arose since Paul du Bois-Reymond, who held the chair at Freiburg from 1870 to 1874, had moved to the chair at the University of Tübingen where he succeeded Hankel .
Ang mga bakante arose since Paul du Bois-Reymond, na gaganapin sa silya at Freiburg 1870-1874, ay inilipat na sa upuan sa University of Tübingen kung saan siya Tagumpay Hankel.