Stiles's Auroral Observations. 



163 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. Two coruscations from nearly east 

 and west met in the vertex, crossing the meridian about 10° 

 south of tlie zenith. At 10'' the auroral light seems to have 

 spread over the whole hemisphere to the southern horizon ; 

 though more faintly southward than northward. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis, very bright. 



A.B., very bright, north and south round the horizon. 



A small Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis, north and south, 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis, V' to 10'\ 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Great A.B. All the northern hemisphere emblazoned 

 with columns and conical streams of light. The western 

 strife, red and white, ranged by Jupiter at 9'' 25"\ and imme- 

 diately an arch of light struck across the northern hemisphere 

 at about 40° height on the north meridian. Streams struck 

 up from N.E., and closed or completed an entire arch across 

 from horizon to horizon at 9'' 31"\ crossing the meridian south 

 of the zenith by a star which I take to be Alpha Lyra?. 

 May 28. Aurora Borealis. 



May 31, 3'' A.M. Large Aurora Borealis in north and spreading 

 round into the sovith. The heavens look pied with Avhite, 

 light, clouds and darkness. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



A grand Aurora Borealis and Australis, the strife and 

 <3oruscations shooting up and playing all over and round 

 every part of the hemisphere. Luminous spots and beautiful 

 red and flaming pyramidal columns ascending to the zenith. 

 At 10'' Avas formed a grand auroral crown -exactly on the me- 



