Genève, Skira, 1987, large in-4°, 231 pp, b/w ills. bibliography, publisher's cloth with printed pictorial dustjacket. Contains a detailed scientific study of the ca. 200 engravings made by the artist during the years 1849 - 1859. They represent the pinnacle of his creative activity in the field of engraving. He died in 1914 and made in all ca. 900 engravings.