[ 6 °6 ] 
a great Circle of this Light came from the Weft to 
the Zenith , which feemed to be the Magazine whence 
all the reft were fupplied. It is but about a Year 
fince I firft obferved this red Light in the Aurora 
Borealis , and only then in very fmall Quantities. I 
Ihall be glad to know if there is any fuch Alteration 
in the Light at London • 
< 5 . An AbftraEl of a Letter from John Fuller, Efq$ 
jun. F. R. S. to the Prefident, concerning the Red 
Lights feen Dec. 5. 1737. 
* * * * TT was a ftrong and very fteady Light, as near 
as can be of the Colour of red Okre ; it did 
not feem to dart or flafti at all, but continued going 
on in a fteady Courfe againft the Wind, which blew 
frefh from the South-weft. It began about North 
North-weft, in Form of a Pillar of Light, at about 
<5 K if. in the Evening; in about 10 Minutes, a 
Fourth Part of it divided from the reft, and never 
joined again ; in 10 Minutes more it defcribed an 
Arch, but did not join at Top ; exactly at Seven, it 
formed a Bow, and foon after quite difappeared ; it 
was all the while lighteft and reddeft at the Horizon : 
It gave as much Light as a Full Moon. 
At 8h. it began again exactly North : It was very 
light then, but not near fo light as before; in half 
an Hour it made an Arch from Eaft to Weft, and 
went quite away to the South, when it ended much 
with the fame Appearance as it began in the North, 
but not quite fo red. 
RoJebil/j [ Sujfex ] De t. 20 . 173 7 . 
VIII. A 
