Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/n3a8jY5cyt

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/n3a8jY5cyt

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/F8SlptyiKW

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In 1611, astronomer Johannes Kepler (above) described the basic notion of the ‘Camera Lucida’.

In 1806, William Hyde Wollaston (below) invented an instrument with a four-sided prism, almost 200 years later. https://t.co/OLiy3RAljp

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/F8Slptg9wO

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/n3a8jY5cyt

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/F8Slptg9wO

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/F8Slptg9wO

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/n3a8jY5cyt

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Charles Louis Mozin, 1806 - 1862, French painter - A French Sidewheel Steamship of Le Havre & Honfleur

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/n3a8jY5cyt

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/F8Slptg9wO

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/F8Slptg9wO

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/F8Slptg9wO

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/n3a8jY5cyt

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/n3a8jY5cyt

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/n3a8jY5cyt

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/n3a8jY5cyt

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/F8Slptg9wO

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Illustrations of new species of exotic butterflies : selected chiefly from the collections of W. Wilson Saunders and William C. Hewitson -1806-1878- ~ https://t.co/F8Slptg9wO

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