(.84 ) 
appear’d faint and inclin’d to Purple, Tho* the Va- 
pour, of which this and the preceding Corona were 
form’d, was fo exceeding thin and pure, that feveral 
of the fix’d Stars were vifible thro’ it, yet it reflected a 
Light fo copious, that I could thereby perfe&ly diftin- 
guifh the time of night by a fmall Gold Watch. While 
thus delighted, our Phenomenon ejected four or five 
large Columns toward the N. IV. ('befides others to- 
ward the South) which appear’d pointed at the Top, 
and their Sides inclin’d to each other with an Angle 
of 5 or 6 Degrees. When their Bafes were extended 
about 30 or 35 Degrees from the Vertex , the lower 
Parts of two or three of ’em broke, as it were, by the 
meer Weight of the Vapour, feparated from the upper, 
and defcended with a flow Motion, in the Form of 
truncate Cones : they were gradually follow’d by their 
upper Parts, and in about a Minute were loll in a large 
Body of Light that was fettl’d between the N. W. by 
N. and W. N. W. The Corona , as if exhaufted by 
thefe great Difcharges, became immediately more di- 
lute and languid, its lively Colours faded, and were 
fucceeded by a whitifh vibrating Light, that in lefs 
than two Miuutes intirely difappear’d. 
The dark Vapour, which continu’d to poffefs the 
Polar Regions, had now extended it felf from the Eaft 
to the N. W. by N. point of the Horizon , and was 
form’d in a large Segment of a Circle, whofe Center 
was about 20 Degrees below the Horizon j its upper 
Edge was ting’d with a pale Red, which was foon loft 
in a florid Yellow, and this again, as it approach’d the 
Zetiith , became more effoete and languid. In this dark 
Segment feveral lucid Areas frequently difcover’d 
themfelves, with a vibrating Light, which inftantly 
difappear’d, as if a Curtain were drawn over them 3 
and 
