An historical and philosophical account of the barometer, or weather-glass ... And a modest attempt from thence made towards a rational account and probable judgement of the weather / By Edw. Saul, A.M.

  • Saul, Edward, 1677-1754.
Date:
1730
Catalogue details

Licence: Public Domain Mark

Credit: An historical and philosophical account of the barometer, or weather-glass ... And a modest attempt from thence made towards a rational account and probable judgement of the weather / By Edw. Saul, A.M. Source: Wellcome Collection.

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    the Mercury fore lhews Thunder. 5. I n Winter, the Rifing prefages Froft ; and in frolfy Weather, if the Mercu¬ ry falls three or four Divifions, there will certainly follow a Thaw. But in a con¬ tinu’d Froft, if the Mercury rifes, it will cer¬ tainly Snow. 6. W hen foul Weather happens foon after the Falling of the Mercury, expert but little of it. And on the contrary, expert but little fair Weather, when it proves fair, fhortly after the Mercury has rifen. 7. I n foul Weather, when the Mercury rifes much and high, and fo continues for two or three Days before the foul Weather is quite over, then expert a Continuance of fair Weather to follow. 8. I n fair Weather, when the Mercury falls much and low, and thus continues for two or three Days before the Rain comes ; then expe£t a great Deal of Wet, and pro¬ bably high Winds. 9. T h e unfettled Motion of the Mer¬ cury denotes uncertain and changeable Weather. N 2 io.You