is dried up, during an unusually hot season, and the wood set on fire, pits are burnt into the ground many feet deep, or as far down as the fire can descend without meeting with water, and it is then found that scarcely any residuum or earthy matter is... A Manual of Elementary Geology: Or, The Ancient Changes of the Earth and Its ... - Seite 334 von Sir Charles Lyell - 1853 - 512 Seiten Vollansicht -
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