Study of a Tree Trunk Sawed in Half

Black conté crayon(?), graphite, brown ink, and white gouache on off-white wove paper

Black and white chalk on brown modern laid paper, lined to Japanese paper

Graphite on cream modern laid paper (foxing and discolored)

Black chalk on off-white antique laid paper; verso: black crayon

Graphite on off-white wove paper

Black chalk with colored chalk on blue wove paper; verso: black chalk

Black chalk, black crayon, with touches of graphite and white chalk corrections, scraping and extensive stumping, on cream wove paper, darkened

Black crayon on off-white antique laid paper

Brown ink on cream modern laid paper

Watercolor, brown ink and graphite

Black chalk and gray wash on heavy white wove paper; verso: black chalk

Watercolor and graphite on off-white wove paper