He who can read Sir Charles Lyell's grand work on the Principles of Geology, which the future historian will recognise as having produced a revolution in natural science, and yet does not admit how vast have been the past periods of time, may at once close this volume.
Sir Charles Lyell-en Geologiako Hastapenei buruzko lan bikaina, geroko historialariek natur zientzietan iraultza ekarririkotzat aitortuko dutena, irakurri eta, hala ere, iragan diren denboraldiak oso luzeak izan direla onartzen ez duenak, oraintxe berton itxi dezake liburu hau.