Horizontal rectangle of a cactus shown against a background of bushes. Small plants are in the front. Date: 1865–66. Dimensions: 21.7 x 28.5 cm (8 9/16 x 11 1/4 in.). Medium: brush and oil, pencil on cardboard. Collection: Cooper Hewitt, Smithsonian Design Museum. Drawing, Botanical study, 1865–66 (CH 18200577)
