Despite this critical skepticism, and a new appointment to the court of appeals in Berlin in 1848, Schnaase continued to produce new volumes of his "Geschichte". A volume on early Christian and Islamic art appeared in 1844; one on "the actual middle ages" in 1850; the Gothic in 1856; the late Middle Ages in 1861; and medieval Italian art in 1864. At this point, instead of continuing his survey into the Renaissance, Schnaase began work on a second edition of the existing work. He was aided in the revision by a number of prominent art historians. It has been suggested that Schnaase stopped where he did "because of the appearance of Jacob Burckhardt's equally contextual works on the Renaissance as well as... the areligious attitudes of the modern era."