The Still Hour (1859), a summary of a series of sermons on prayer, is a devotional classic. His other works are: The New Birth (1867), portraying conversion (in some instances) as a gradual change; Sabbath Hours (1874); Studies of the Old Testament (1878); Men and Books (1882); My Portfolio (1882); My Study (1885); and My Note Book (1890).
In Orvieto cathedral he painted three triangular divisions of the ceiling, portraying respectively Christ in a glory of angels, sixteen saints and prophets, and the virgin and apostles: all these are now much repainted and damaged.
The other bears the record of a second expedition to the same land of Punt, undertaken by command of Queen Hatshepsut, 1600 B.C. It is preserved in the vividly chiselled and richly coloured decorations portraying the history of the reign of this famous Pharaoh on the walls of the "Stage Temple" at Thebes.
It does not, like Villehardouin, give us a picture of the temper and habits of a whole order or cast of men during a heroic period of human history; it falls far short of Froissart in vivid portraying of the picturesque and external aspects of social life; but it is a more personal book than either.
This was restored in 1867-1878 at the cost of the Prussian government, and was adorned with frescoes portraying events in German history.