'The Geysers, or Boiling Springs of Iceland', 1849.
© Science Museum / Science & Society Picture Library
Colour engraving by Josiah Wood Whymper taken from 'Phenomena of Nature', published in London in 1849 for the Society for Promoting Christian Knowledge. 'Iceland is situated amid regions of ice and snow, yet it gives abundant evidence of the volcanic fires which are slumbering beneath its surface. Hot springs, or geysers, abound in many parts of the coast, and can throw up columns of water a hundred feet high. In some cases the waters of the ocean are heated by their actions.'