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Managing Mercury
From the end of the 15th to the mid-19th century, tin-mercury amalgams…

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Masking a Stain
This rare, red-on-white printed handkerchief from the late 18th century shows General…

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Uncovering Undercover Toxins
After discovering arsenic in some vintage books, a conservator spreads the word on safety. …

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Bright Red or Scarlet?
Mark Catesby’s The Natural History of Carolina, Florida and the Bahama Islands:…

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Fifty Years of Remarkable Science
Did you know that Winterthur might have saved Lady Liberty from ruin? That it…

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