164 Stiles''s Auroral Observations. 



ridian : the center of which was near Beta in Aries, and about 

 4° S.W. from Alpha Arietis, 20° south of the zenith of Yale 

 College. From this center proceeded every Avay, N., S., E., 

 and W., radial beams half way down to the horizon ; be- 

 sides a r^d beam or arch or broad stream Avhich then crossed 

 from east to west through the coronal center from horizon 

 to horizon, or very nearly. A dim arch or luminous circle 

 or belt, round through the southern board, crossing the me- 

 ridian about two-thirds the way from the zenith to the south 

 horizon. Below Avhich was a penumbral darkness, Avhich in 

 five or six minutes became tinged with red to the southern 

 horizon. About 10'' 10™ or sooner the vertical crown became 

 faint and evanishing. It lighted vip again with new inlaying, 

 varying and alternately evanif<hing striae or radii. I examined 

 the celestial globe, and found the stars near the ceuter to be 

 the two stars in the head of Aries, which were on the merid- 

 ian at 10'' 35™ nearly; at which time the crown was much 

 obliterated, though the heavens are full of aurora. At 11'' 

 the radii continue, proceeding to S.E., S., and S.W., but 

 chiefly S.E. and nearly S., then a chasm, and then streams to 

 S.W. and W., but the extremities of the radial beams are 

 dissipated about the center. Yet there is still a redness in 

 the southern board, down to the horizon, and perhaps an 

 hour and a half high. In the northern board the whole semi- 

 hemisphere is covered with a dim whitish sheet of light like 

 the dawn of day. In the height of the phenomenon I read 

 the New Haven Gazette by the auroral light. I never before 

 saw so splendid and universal an aurora. At 12'' aurora 

 north and northwest. 

 1V89, Dec. 24., Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis. 



Aurora Borealis, small. 



Aurora Borealis, small. 



Aurora Borealis, small. 



Great Aurora Borealis. 



At 7'', Aurora Australis south two points east. Gone 



218 

 219 

 220 

 221 

 222 

 223 

 224 

 225 

 226 



227 



228 



Aurora Borealis. 

 Aurora Borealis. 



Notices of Auroras extracted from various Journals kept at JVeiv Haven^ 

 Conn., and not included in either of the jyreceding lists. 



No. 



1 1802, July 1. The Aurora Borealis made its appearance between 8'' 

 and 9'' ; the northern part of the horizon was considerably 

 illuminated, but the brightest part was E. of North when 

 first observed, but moved slowly westAvard, till it was rather 

 W. of N. In the north, the light went up in streaks to about 

 the height of 30°, but this appearance ceased about 10'', 

 though "the light continued. A little after 10'' a streak of 

 light shot up in the East and extended itself a little north of 

 the zenith almost to the western part of the horizon. Dwight. 



