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53:6 ·
In Diderot's Encyclopedia this sign was said to mean oil, for French chemists in the eighteenth century. For most of the alchemists' many signs for oil, look up |
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53:6 ·
In Diderot's Encyclopedia this sign was said to mean oil, for French chemists in the eighteenth century. For most of the alchemists' many signs for oil, look up |
