Making and using elm tree pumps to drain mines before the days of the steam engine mb-code CB057244 Duke of Gloucester and William

Duke of Gloucester and William

Hill eventually finished third in this race

Plate 10 figure 6 from the paper 'On some fossil bones discovered in caverns in the limestone quarries of Oreston

the bars of a prison cell can be seen with the white hands of British prisoners clutching the bars

the Rough Leatherjacket (Scobinichthys granulates)

Making and using elm tree pumps to drain mines before the days of the steam engine mb-code CB057244 Duke of Gloucester and WilliamMaking 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.