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

Brown ink and gray wash over black chalk; two overlapping rectangles in brown ink

Red chalk and brown wash on cream antique laid paper, incised, two pieces joined

Opaque and transparent watercolor on parchment adhered to panel; thick framing line in brown watercolor

Brown ink and brown wash over graphite on cream antique laid paper, with a framing line in brown ink

Brown ink and gray wash over graphite and black chalk on cream antique laid paper

Black chalk on parchment

Opaque and transparent watercolor and black chalk on cream antique laid paper

Brown ink, brown wash, red, blue, and yellow chalk wash with graphite on cream antique laid paper; remnants of a brown-ink framing line at upper, left, and lower edges; verso: brown ink and gray wash

Red chalk on cream antique laid paper

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

Black and white chalk on blue paper

Black chalk, black ink, gray wash on parchment, mounted down entirely