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tion of the two firft, is, from a Letter of Dr. Bred Taylor , 
LL.D. and Secretary to the Royal Society, dated April z, from 
Cotterfiock, near Oundle in 'Northampton- (hire, who thus de- 
feribes them. ‘ f On Saturday Nighdait, and laft Night, I favv 
Appearances of the fame kind, with thofe of March 6. but 
not to compare for Extent and Strength to the other. They 
both began foon afeer Sun fet, and continued till after 12, 
but how urmch longer I cannot tell. They were both about 
10 or ry degrees to the Weft ward of the North, and took 
up about 80 degrees of the Horizon ; and the Aurora rofe 
about ;o gr. high, with a dark Bottom, like what was feen 
in the Firft; and from whence there fprung out feveral Bo- 
dies of Light, which immediately run into Streams, amend- 
ing about ;o, or atmoft 40 gr. high. There was no fiafh- 
ing nor waving Light, but in all other refpeefts, thefe 
Lights svere of the fame kind with what we faw at London. 
Indeed in that lalt Night, there was one Vhanomenon like the 
flafhing Light* for a Body of Light about iy or 20 degrees 
long, parallel to the Horizon, rofe till it came about 6 degrees 
above the black Bafis, and then fent up two ftrong Streams 
of Light about 40 gr. high, which at top dafht againft one 
another, and difappear’d.” 
At London, the firft Night, March ; r. It did not begin 
to radiate, till towards Mid-night, and was feen but by 
few curious Perfons ; the Beams not rifing very high, and 
Fcarce appearing over the Houfes, were little taken notice 
of: but by the Relation of thofe that faw it, it was much 
more considerable than the next Night following Eafier-day , 
for it then fent out but few and very fhcrrt Beams, moftly 
terminating in a fharp Point, and prefently difappearing. 
Only it beginning to ftream fo foon as it became Dusky, it 
was very obfervable, that thofe Rays which arofe out of the 
Weft end of the Luminous Arch, next the Sun, were en- 
lightned by its Beams, and fhew’d themfelves much brighter 
than thofe which fprung up under the Pole„ or to the Eaft- 
ward thereof. And after Nine, till Mid night, no more 
Beams arofe; and the Luminous Arch with its black Bafis, 
fettled down very low in the Northern Horizon. 
The fame two Nights, by the Obfervation of Mr. William 
Lwgtn, the like Appearance was feen at Dublin, about the 
hours 
