Receueil d'Observations 1825-1841
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Puymaurin, Jean-Pierre-Casimir de Marcassus, baron de, 1757-1841
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Baron Jean-Pierre-Casimir Marcassus de Puymaurin (1757-1841) was a member of a wealthy and distinguished family from Languedoc. He had a lifelong interest in politics, rural economy, manufacturing, and chemical experiments, and was also a noted art collector. In 1787, Puymaurin introduced into France the technique of engraving on glass using hydrofluoric acid. He was the director of the imperial factory at Albi, a manufacturing town near his ...