Untitled (bleed-through of previous page, left page); Untitled (ruins in Nemea, right page)

Graphite on paper

Graphite on off-white wove paper

Graphite and white chalk on brown wove paper

Graphite on off-white laid paper

Gouache on greenish-white wove paper

Black marker on paper

Oil paint on offset lithograph, 1989 edition of Flora de la Real Expedición Botánica del Nuevo Reino de Granada (1783-1810)

Charcoal and black ink on cream laid paper

Ink, opaque watercolor, and watercolor on paper

Green crayon on paper

Graphite and staples on layered and cut translucent vellum paper

Brown ink and brown wash on off-white antique laid paper