330 BAROMETER. 



Q. What does a SUDDEN rise or fall of the 

 barometer indicate ? 



A. If the rise be sudden, fine weather 

 will not continue long : 



If the fall be sudden, foul weather 

 will not continue long. 



Q. What sort of weather may we expect if the 

 barometer be very FLUCTUATING ? 



A. If the mercury fluctuates much, 

 the weather will be very changeable and 

 unsettled. 



The FALL of the barometer. 



In very hot weather, the fall of the mercury denotes 

 thunder. 



Except in very hot weather, the sudden falling of the 

 barometer denotes high wind. 



In frosty weather, the fall of the barometer denotes thaw. 



If wet weather happens soon after the fall of the barometer, 

 expect but little of it. 



In wet weather if the barometer falls, expect much wet. 



In fair weather, if the barometer falls much and remains 

 low, expect much wet in a few days, and probably wind. 



N. B. The barometer sinks lowest of all for wind and rain 

 together, next to that for wind (except it be an east or 

 north-east wind). 



The RISE of the barometer. 



In winter the rise of the barometer presages/rostf. 



In frosty weather, the rise of the barometer presages snow. 



If fair weather happens soon after the rise of the barom- 

 eter, expect but little of it. 



In wet weather, if the mercury rises high and remains so, 

 expect continued^ne weather in a day or two. 



