162 Stiles' s Auroral Observations. 



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Aurora Borealis. 



Great Aurora Borealis. 



Aurora Borealis. 



Small Aurora Borealis, 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



At 10" A.B. all round the horizon to 20° high. 



At 10'' great Aurora Borealis. Streams to zenith. 



A fine auroral arch arising a little S. of E., perhaps 

 10° S. of E., and ascending from the horizon crossed 

 the meridian and terminated near the western horizon, or 

 within 10° of it. It might be 4° or 5° wide. At lO'' 30" 

 passed through j? Serpentarii, south of Northern Crown, 

 Zeta Aquilje, Eta of the Dolphin, through Arcturus. West 

 €nd evanished, and soon re-blazed, and the Avhole arch shone . 

 again. 



"" At 1 0'^ 53™, moves southward. At 1 1'', 5° south of « Aquilae, 

 a Serpentarii, and Arcturus, crossing the meridian about 32° 

 south of the zenith. Ended in the head of Virgo. Van- 

 ishing. 



At ll'^ 6™ evanished, having lasted above half an hour, in 

 which time the Avhole arch moved southward perhaps 10°. 

 July 2. Aurora Borealis. 

 Aug. 18. Aurora Borealis. 



Aug. 22. Considerable A.B. Patches and spots or clouds of 

 aurora all over the hemisjjhere, from the northern to the 

 southern horizon. 

 Aug. 24. Aurora all over the horizon north and south, and in 

 spots aloft. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



A.B. 60° high. Fine and beautiful coruscations. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Great A.B. At 9*^ SO"" auroral arch crossed south of 

 the zenith from east to west, passing through Arcturus and 

 Alpha Aquila?, its southern limb touching those stars. It 

 continued permanent, and was not wholly obliterated at 10^. 

 Vast coruscations ascending from the north up to the zenith 

 and beyond. At 11'' aurora still great. 



Great Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Larofe Aurora Borealis. 



J 



