Geology, subterranean river, 1763.
"Fountains" and "A Subterranean River which runs under the Mediterranean near Frontignan" engraved by Toms, published in Nature Displayed, 1758. Copper engraved print with recent hand colouring, one vertical fold as published, good margins. Size 19.5 x 13.5 cms. Ref E1707

Ballooning, 1813.
"Balloon" anonymous engraver, published in A Complete and Universal Dictionary, 1812. Copper engraved print with recent hand colour. Size 15 x 17 cms. Ref D9986