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![Page from Isaac Newton’s copy of the Preparation of the [Sophick] Mercury for the [Philosophers’] Stone](https://www.sciencehistory.org/sites/default/files/styles/3up_desktop/public/rte/isaac_newtons_copy_cf95jc09d_0_5d86p087z_download_medium_0.jpeg?itok=dQdKVzWZ)
