 After the Austro-Prussian war of 1866 Fischhof wrote ""Ein Blick auf Oesterreich's Lage"", and strongly advised an alliance with Germany.In his ""Oesterreich und die Bürgschaften Seines Bestandes"", 1869, he recommended an autonomous constitution for Austria.In his publications Fischhof strongly advocated a federal organization of the Austrian Empire and a high degree of autonomy for national minorities.