The Barometer Handbook: A Modern Look at Barometers and Applications of Barometric Pressure: Burch, David, Burch, Tobias: 9780914025122: Amazon.com: Books
In which year was the barograph invented? - Quora
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How many types of barographs are there? - Quora
Putting a 120-Year-Old Barograph To The Test | Weather and Climate @ Reading