174 best's art of angling. 



Accordingly, such weather is generally at- 

 tended with moderate warmth, and with little 

 or no wind to disturb the vapours, and an heavy 

 atmosphere to sustain them, the barometer being 

 commonly high. But when the cold ap 

 proaches, and by condensino;, drives the vapours 

 into clouds or drops, then way is made for the 

 sun-beams; till the same vapours being, by fur- 

 ther condensation, formed into rain, fall down 

 into drops. 



2°. " A chang^ein the warmth of the weather, 

 is generally followed by a change in the wind." 

 Thu^, the northerly and southerly winds, com- 

 monly esteemed the causes of cold and warm 

 weather, are really the effects of the cold or 

 warmth of the atmosphere: of which Mr. Der- 

 ham assures us he has had so man}^ confirma- 

 tions, that he makes no doubt of it. Thus it is 

 common to see a warm southerly wind suddenly 

 changed to the north, by a fall of snow or hail ; 

 or to see the wind, in a cold frosty morning, 

 north, when the sun has well warmed the earth 

 and air, wheel towards the south ; and again 

 turn northerly or easterly in a cold evening. 



3°. ^^ Most vegetables expand their flowers 

 and down in sun-shiny weather, and towards the 

 evening; and against rain close them again ;" 

 especially at the beginning of their flowering, 

 when their seeds are tender and sensible. This 

 is visible enough in the down of dandeUon, and 

 other downs: and eminentlv in the flowers of 

 pimpernel ; the opening and shutting of which, 

 Gerard observes, are the countryman's weather- 

 wiser, wherebv he tells the weather of the foi- 

 lowing day. The rule is, if the dowers are 



