Inscription; verso: Diagrams and notes

Black and white chalk on red-brown laid paper

Black ink and watercolor over graphite on cream wove paper; album leaf: watercolor and graphite on cream wove paper

Graphite on paper

Black and white tempera on acetate laid over blue and brown tissue paper

Graphite on paper

Black ink and graphite on translucent vellum paper

Watercolor and white gouache over graphite on cream wove paper

Beeswax, graphite, detritus and debris on wove paper

Black chalk over a blue ink grid on cream wove paper

Black ink on off-white wove paper

Charcoal on blue laid paper