453 
throughout the most brilliant. The changes now succeeded 
each other so rapidly as to defy observation, the limits of the 
dark interior part continually altering, and at one time ap- 
pearing as ifhalf the arch were refracted from its place. 
“The arch continued to separate, and, as it were, fall to 
pieces, the streamers diminishing in brilliancy until 10" 17™ 5*, 
when a broad column rose from very near the horizon, on 
the eastern side. 
“This column appeared gradually to melt away, when 
a yery brilliant streamer arose ina in the same place at 
2Q 
