Untitled (bleed-through of previous page, left page); Untitled ("Charles River Rainbow," right page)

Graphite on paper

Graphite on paper

Graphite and green crayon on paper

Graphite on paper

Gray ink, gray and blue wash, and graphite on cream antique laid paper

Brown wash with scraping on white wove paper

Graphite on paper

Ink on paper

Colored marker on paper

Black and white chalk on off-white antique laid paper prepared with blue-gray wash

Graphite on paper