Making and using elm tree pumps to drain mines before the days of the steam engine Size:Large: 7 x 5in This cartoon depicts the Liberal

This cartoon depicts the Liberal Leader of the Opposition

Plate 9 figure 4 from the paper 'On some fossil bones discovered in caverns in the limestone quarries of Oreston

by Abraham Trembley (Leiden

Nobles before King Richard II

An Austin 100hp car taking a bend

Making and using elm tree pumps to drain mines before the days of the steam engine Size:Large: 7 x 5in This cartoon depicts the LiberalMaking and using elm tree pumps to drain mines before the days of the steam engine, 1556 (1956). From De re Metallica by Georgius Agricola. A print from Things, a volume about the origin and early history of many things, common and less common, essential and inessential, by Readers Union, the Grosvenor Press, London, 1956.