3CJ 



Astronomical and Magmtical Observations. 



[Nov. 



force ceased to act the luminous matter so dispersed assumed a 

 shape and dimensions which were nearly similar to those of the 

 former arch. 



This grand meteoric object differs very much from common 

 meteors ; from solar and lunar bows ; and from the Aurora Borealis, 

 or northern lights ; and all other known electrical phenomena. It 

 is sufficiently distinguishable from common meteors by its shape 

 being so different, its size so much larger, and its motion so much 

 slower than theirs. It differs from the bows by having length, 

 depth, and breadth, and thereby being a lody ; whereas they have 

 onlv length and depth, and may be considered as only surfaces. 

 Thev are caused by the division of light into parts, and arc therefore 

 of various colours ; but it was white only. Lastly, light emanated 

 from it ; but it never does so from them. It differs from the 

 Aurora Borealis in wanting their coruscant property, and in having 

 a much paler light than theirs. And if it were the electrical fluid, 

 its long continuance in the atmosphere, in a state of rest, and yet 

 luminous, makes it such a modification of this fluid as we are not 

 much acquainted with. 



Troutbeck, near Kendal, Sept. 30, 1814. 



Article X. 

 Magnetical Observations at Hackney Wick. By Col. Beaufoy, 



Latitude, 51° 32' 40-3" North. Longitude West in Time 6'Wi 



r* 



Sept. 27, Emersion of 3 J. SS 8 U 22' 18" Mean Time at Hackney Wick. 



_ , , _ .. I" Immersion 10 29 22 ) A , „.. . „ , n»i i 



Oct. 1, p Ceti-j^^.^ n 30 g6 j. Mean Time at Hackney Wick. 



Magnetlcal Observations. 

 1811. 



