Thermometer, ca. 1760
Photo by Peter Harholdt, 2004
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Photo by Peter Harholdt, 2004

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Edward Nairne
Walnut, silvered brass, mercury, and glass; H. 20 7/8 in. (53.0 cm), W. 2 1/4 in. (5.7 cm), D. 1 5/16 in. (3.3 cm)
Atwater Kent Museum of Philadelphia, The Historical Society of Pennsylvania Collection (Philadelphia, Pa.), S-10-2
In the 18th century, scientific instruments were part of a learned gentleman's personal possessions. Franklin bought this thermometer and other scientific instruments from Edward Nairne, a leading instrument-maker in London.
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