Seated Boy with Crossed Legs, head tilted; verso: sketch of skeleton

Brown ink on antique laid paper

Black chalk and gray wash, with a framing line in black chalk, on cream antique laid paper

Black chalk on parchment

Black chalk and gray ink, partially incised, on of-white antique laid paper, partial framing line in black ink; verso: red chalk, rubbed

Black and red chalk, with later additions of brown ink, red chalk, and gray wash, on off-white antique laid paper cut into an oval and mounted to off-white antique laid paper, framing lines and horixontal and vertical axes lines in graphite

Brown ink, brown and gray wash, pink and green transparent watercolor and white opaque watercolor over black chalk on cream antique laid paper, framing line in brown ink

Gray wash and black chalk with scratchwork and touches of graphite on cream antique laid paper, framing line in brown ink

Black ink and gray wash over red chalk on cream antique laid paper, squared in red chalk, framing line in black ink and red chalk, mounted at all corners

Black chalk on off-white antique laid paper prepared with gray wash, partial framing lines in black chalk and graphite

Offset in brown wash on parchment (from the drawing on folio 22 verso); verso: graphite, autograph framing line in graphite

Brown ink, touches of black chalk on two pieces of off-white antique laid paper, partial framing line in black ink reinforced in graphite

Black and white chalk on blue paper, framing line in black ink