Untitled (bleed-through of previous page, left page); Untitled (notes, right page)

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

Black ink, partly over graphite, on cream laid paper.

Black crayon on paper

Black pencil on paper

Brown ink on tan wove paper

Pastel on cream wove paper

Transparent and opaque watercolor over graphite on off-white wove paper

Watercolor and graphite on cream wove paper

Red and white chalk on blue wove paper prepared with brown ground

Black and white chalk and graphite on blue wove paper, faded to tan

Graphite on paper