Scientists in the Library's Preservation Research and Testing Division recently worked to analyze the colorants in this beautiful entomology book from 1705. Technical studies like this one help provide scholars with insights into where, when and how items in the Library's collection were made. This book is digitized, so you can see it in its entirety on the Library's website. Just search "Metamorphosis insectorum" on loc.gov. | The Library of Congress
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