Illustration for Doctor Doolittle (The Doctor at the Zoo)

Black crayon on cream wove paper

Graphite and colored pencil on photocopy

Watercolor and graphite on off-white paper

Liquid paper (?) and colored pencil on blueline print

Graphite and Letraset

Graphite on very heavy white modern paper (laid down on cardboard)

Charcoal on cream wove paper

Watercolor over graphite on white paper

Poster paint on white paper

Black and white chalk on tan wove paper; verso: black chalk

Graphite on off-white wove paper

Charcoal on cream wove paper