A Falling Barometer.

A rapid fall, indicates stormy weather.

A rapid fall with westerly wind, indicates stormy weather from northward.

A fall with a northerly wind, indicates storm, with rain and hail in summer and snow in winter.

A fall with increased moisture in the air and the heat increasing, indicates wind and rain from southward.

A fall with dry air and cold increasing in winter, indicates snow.

A fall after very calm and warm weather, indicates rain, with squally weather.

The most dangerous shifts of wind and the heaviest northerly gales happen after the mercury first rises from a very low point.

The tides are affected by atmospheric pressure, so much that a rise of one inch in the barometer will have a corresponding fall of the tides of nine to sixteen inches, or say one foot for each inch.