CLIMATOLOGY OF NEW HAMPSHIRE. 



135 



the rise and fall of the barometer. The correspondence between the two 

 is very striking, especially during periods of great disturbance. 



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Aqueous Precipitation. 



The observations for one year give the amount of aqueous precipitation 

 as 55 inches, and it is confined mainly to summer and autumn, — the entire 

 precipitation for winter and spring being given as only about eight inches, 

 leaving 47 inches for summer and autumn. There is no means of deter- 

 mining the actual amount of frost-work and snow, but we know that the 



