This Barometer would have been useful for John Jay as a gentleman farmer. It contains mercury, and measures not only the temperature, but also barometric pressure, which can aid in predicting short-term weather. Farmers, like Jay, could dictate the day’s work based upon the forecast. Come see the barometer, and learn about Jay’s relationship with fellow farmer Thomas Jefferson on our Thematic Tour, offered Thursday thru Saturday at 2pm throughout the entire month of April.
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