TO JUDGE OF THE BAROMETER. 19<> 



Barometer is low, it sometimes rains, without 

 almost any appearance of clouds. 



All appearances being the same, the higher 

 the Barometer is, the greater the probability of 

 fair weather. 



Thunder is almost always preceded by hot 

 weather, and followed by cold and showery 

 weather. 



A sudden and extreme change of temperature 

 of the atmosphere, either from heat to cold, or 

 cold to heat, is generally followed by rain with- 

 in 24 hours. 



In winter during a frost if it begins to snow, 

 the temperature of the air generally rises to 32 

 degrees of the Thermometer, and continues 

 there whilst the snow falls ; after which if the 

 weather clears up, expect severe cold. 



The Aurora Boreaiis, is a prognostic of fair 

 weather. 



Dr. Kirvan has deduced from a variety of 

 meteorological observations (to which he has 

 had access) made in England between the year 

 1677 and 17S8 the following probabilities or hints 

 towards forming prognostics of the weather, viz. 



" That when there has been no storm before 

 or after the spring equinox, the ensuing summer 

 is generally dry ; at least five times in six. 



" That when a storm happens from any 

 Easterly point, either on the 19th, 20th, or 21st, 

 of March, the succeeding summer is generally 

 dry, four times in five. 



" That -when a storm arises, on the 25th, 26th> 

 or 27th of March, and not before in any point 5 

 the succeeding summer is generally dry, four 

 times in five. 



" If there be a storm at S. W. or W. S. W. 

 on the 19th, 20th, or 22dof March, the succeed- 

 ing summer is generally wet 5 five times ia six." 



