Studies of Leaves; verso: Skull of an Animal

Brown ink and graphite

Transparent watercolor, black and gray ink and graphite on off-white wove paper

Black chalk on cream modern laid paper

Watercolor and black ink on cream paper

Watercolor, black ink and graphite on off-white antique laid paper

Watercolor, black ink and graphite on cream laid paper

Graphite, fixed, on cream laid paper

Watercolor, black-gray ink and graphite on off-white wove paper

Graphite heightened with white gouache on ivory paper

Watercolor and gouache on blue-gray wove paper, laid down

Watercolor on off-white wove paper