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XI. Description of a Barometer, which marks the Rise and Fall of the Mercury from two different Times of Observation

Published online by Cambridge University Press:  17 January 2013

Alexander Keith Esq.
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Extract

In August last, I read to this Society the Description of an Air Thermometer intended to record the various degrees of heat at every instant; and mentioned my intention of constructing a barometer, which would, in the same manner, record the variations of the weight of the atmosphere: Both which I proposed to adapt to one piece of clock-work.

This piece of machinery appearing too complicated and expensive for general use, I contrived a thermometer, which marks the extreme points of heat and cold from any two times of observation. Of which instrument I also lately read an account, and produced the machine itself.

Type
Papers Read Before the Society
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 4 , Issue 2 , 1798 , pp. 209 - 212
Copyright
Copyright © Royal Society of Edinburgh 1798

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