TO JUDGE OF THK BAROMETER. 1^9 



Barometer is low, it sometimes rains, without 

 almost any appearance of clouds. 



All appearances being the same, thehigher the 

 Barometer is, the greater the probability of fair 

 weather. 



Thund-er 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 toheat^ is generally followed by rain within 

 24 hours. 



In winter during a frost if it begins to snow, 

 the temperature of the air generally rises to S2 

 degress of the Thermometer, and continues there 

 whilst the snow falls; after which if the weather 

 clears up, expect severe cold. 



The Aurora Borealis, 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 

 3 677 and 1788 the following probabilities or hints 

 towards forming prognostics of the weather, viz. 



" That when there has been no storm before 

 or after the sprujg equinox, the ensuing summer 

 is generally dry ; at least five times in six. 



" That wlien a storm happens from any 

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

 of March the succeeding summer is generally 

 dry, four times in five. 



" That when a storm arises, on the 25th, 2nth, 

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

 the succeeding summer is generally dry, four 

 times in five. 



" If there be a storm at S. W. or \V. S W. on 

 the i9th, 20th, or 22d of March the succeeding 

 summer is generally wet; five times in six." 



