tains—they were relics of the universal deluge. But these marvellous prisms, as neatly made and put together as the cells of wax in a honeycomb—did they look at them and not exercise their minds over them? There is not a particle of evidence that they did, although there were men of inquiring and eager minds in all ages. No suspicion that volcanoes had raged and spluttered on French soil occurred to any man till the year 1751, when Guettard and Malesherbes arrived at Montélimar on their way to Paris from Italy, when they halted in amazement at the pavement of the streets composed of polygonal cubes of basalt "Why!" exclaimed Guettard, "these are precisely the same sort of stones we have seen paving the Roman roads of Rome and Naples—and those came from volcanoes." The two men asked to be shown the quarries whence these blocks came, and they were taken to Rochemaure. They turned aside from their direct course, visited the mountains of Vivarais, but not till they reached Auvergne were their minds thoroughly convinced. In 1751, that same year, Guettard published his Mémoire sur quelques Montagnes de la France qui ont été des Volcans. It roused a storm of jeers and objections. A savant of Clermont even wrote to controvert his thesis, and argued that the cinders were the remains of forges established by the Romans. But at Montélimar Guettard and Malesherbes had dined with an Abbé Faujas de S. Fond, living on the spot. His eyes were unsealed, his interest was kindled, and he went through the Vivarais and explored the basaltic beds and the craters. Finally, the works of this man in 1778, and of de Soulaire in 1870, placed the further existence of volcanoes beyond possibility of dispute.
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THE CEVENNES
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