PHYSICAL AND LITERARY. 219 



Art. VIL 



Some Phenomena ohfervable in foggy Wea- 

 ther; by the fame. 



ONE may often meet with opportuni- , 

 ties of making obfervations : But 

 he may not always have leifure enough to 

 judge of their importance, and make a 

 proper ufe of them. This is the cafe at 

 prefent, with refpedl to what follows. 



. I have frequently obferved, in foggy 

 weather, during froft, that, when the fun 

 was come to a proper altitude, there was 

 a bow formed in the mift, of a white co' 

 lour J and the altitude of the bow feemed 

 to fubtend an angle equal t© the elevation 

 of the fun above the horizon, and form- 

 ed a femicircle. 



This kind of mift comes from the o- 

 cean, with a flow north-eafterly wind; 

 and overfpreads all the lower grounds: 

 But, in a country like ours, fo much di- 

 verfified with long ridges of hills, and in- 

 terjacent 



