The Investigation of the Rainbow, design for plate 66 in the Physica Sacra, vol. 1, by Johann Jakob Scheuchzer

Drawing

1731 · drawing — brush and gray wash, pen and brown ink, red chalk on cream laid paper

Study for the First Plan of Solomon's Temple, Plate 420, Physica Sacra

1731 · figures, drawing — brush and grey, black wash, pen and brown ink on cream laid paper

Study for The Iron Bedstead of King Og, Plate 324, Physica Sacra

1731 · Brush and grey, black wash, pen and brown, black ink on cream laid paper

Physica Sacra

1731 · Brush and gray and yellow wash, pen and brown ink on cream laid paper

Fifth Day's Work

1731 · Brush and gray wash, pen and brown ink, black chalk on cream laid paper

Drawing

1731 · drawing — brush and gray wash, pen and brown ink on cream laid paper