3 Mr. PiGott’s Account of 
form had varied a little, and became rather twilled, fo that 
j 2 n W as fometimes to the north or fouth of id center, without 
being uncovered. At 9 } h. its light was much fainter, broader, 
and more crooked. At 9 h. 40 ' its length was decreafed, ex- 
tending only as far as the Gemini’s feet. I: alio had moved 
to the fouth of the clutter in Berenice, and of /2 n, palling 
through Cancer. Its breadth at this time was conliderably 
increased, perhaps to more than double what it was at firft, 
and its brightnefs much faded. The fouthern fide became 
flaky, having about half a dozen parts hanging down, not 
unlike the tails of Comets, the north lide remaining even ; it 
feemed aporoaching towards its diffolution. The air was re- 
markably clear, with a cold and ftrong wefteriy wind ; flying 
clouds paffing over it intercepted its light, and confequcntly 
the column appeared divided. The north horizon exhibited a 
faint aurora borealis. I imagine, if this phenomenon was 
well obferved in diftant parts, a parallax might be afcertained 
Sufficiently to give us fome idea of its elevation above the fur- 
face 0 f the earth. Among the phenomena of this kind re- 
corded in the Philofophical TranfacTions, there are two refem- 
bHngfo exactly the above, that they deferve the confideration of 
the learned; one was feen in iJ34'5» tbe ot!;Ci ia 1 749 * 
Some years ago I alfo obferved a few others, very iimilar to 
that juft deferibed ; 1 (hall therefore take the liberty of adding 
a fhort account of them. . . 
At Brufiels, March 14 , 1774* at about feven 0 cloc " 1,1 
the evening, the fky being very clear, there appeared an arch 
refembling a bright white fog, about 8 or 9 degrees broa , 
' tolerably well defined ; the brightnefs of the ftars it covered 
•was diminifhed. It role in the eafteru horizon, palkd through 
the conftellations of W, a, 25, n, A over Aldcbanm, and 
