Head and Back of a 13-Lined Ground Squirrel

Watercolor and white gouache over black chalk on gray-tan wove paper

Graphite and black ink on off-white wove paper (recto and verso)

Graphite on paper

Graphite on paper

Watercolor, black ink and graphite on cream laid paper

Black crayon, white chalk, and graphite on blue-gray laid paper

Graphite on paper

Colored marker and black pen on paper

Graphite on paper

Graphite on off-white wove paper

Black ink on Japanese paper

Graphite, red pencil, and blue ballpoint ink on thin white wove paper