This 1904 drawing is assumed to be of Potters pet hedgehog Mrs. Tiggy.

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DOWN THE GARDEN PATHA sketch from Beatrix Potter’s archive.

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The writer and illustrator, age 15, with her cherished spaniel Spot

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A 21-year-old Potter’s drawings of a ground beetle. She had closely observed animals since she was a child, filling sketchbooks with the small creatures she smuggled into her London home—among them hedgehogs, squirrels, spiders, snails, bumblebees, and beetles—and keeping a collector’s cabinet of various specimens.

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This 1904 drawing is assumed to be of Potter’s pet hedgehog Mrs. Tiggy. The laundress in her 1905 bookThe Tale of Mrs. Tiggy-Winklewas inspired by her family’s washerwoman on holidays in Scotland; that tale, like others, was composed for real children in her life.

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Some 20 years after she made this 1909 painting of Monk Coniston Moor, Potter bought the 5,000-acre Monk Coniston estate—which includes the stunning mountain lake Tarn Hows (one of the most beloved features of the Lake District) and several important farms—to save it from possibly becoming a housing development. She bequeathed the entire parcel to the National Trust upon her death in 1943, a transformational act of Lake District preservation.