The Monastery of San Pedro (Our Lady of the Snows)1879 · oil on canvasUnframed: 118.8 x 183.2 cm (46 3/4 x 72 1/8 in.)Cleveland Museum of Art
Twilight in the Hudson Valley, Hudson, New York1870 · landscapes, drawing — oil and graphite on tan paperboard26.6 × 35.8 cm (10 1/2 × 14 1/8 in.)Cooper Hewitt, Smithsonian Design Museum
Broken Column of the Parthenon, Athens1869 · architecture, drawing — oil and graphite on tan paperboard28 × 38.6 cm (11 × 15 3/16 in.)Cooper Hewitt, Smithsonian Design Museum
Gulf of Corinth, Greece1869 · Graphite and white gouache on gray-green wove paper; verso: graphite12.5 × 17.4 cm (4 15/16 × 6 7/8 in.)Cooper Hewitt, Smithsonian Design Museum
Claude's Villa and St. Peter's, Rome, Italy1868 · Oil and graphite on tan paperboard11.4 × 22.6 cm (4 1/2 × 8 7/8 in.)Cooper Hewitt, Smithsonian Design Museum
Wildflowers1865 · nature studies, drawing — oil on tan paperboard34.4 × 39.8 cm (13 9/16 × 15 11/16 in.)Cooper Hewitt, Smithsonian Design Museum