 From 1894 until 1899, he was also administrator of the Egyptian collection at the University of Strasbourg.Michaelis summed up his knowledge in 1906 with his "Die archäologischen Entdeckungen des neunzehnten Jahrhunderts", one of the first historiographies of the development in classical archaeology that had taken place during the nineteenth century; it follows in detail the archaeological expeditions, many of them undertaken by German institutions, with illustrations and site plans, ending with an overview of the older archaeology and the conditions of new views.Michaelis died at Strasbourg.