< 5 ? ) 
I. An Account of an Aurora Borealis feen in 
New-England on the udof O&ober, 1730, 
by Mr. Ifaac Greenwood^ <Profejfor of Mathe - 
maticks at Cambridge in New-England. 
Communicated in a Letter to the late T>r. Rutty, 
S. Seer. 
S I R, Harvard-College, Old. 14, a 7 3 °. 
T H E Aurora Borealis has been very fre- 
quent with us of late^ but none either for 
Brightnefs, Variety or Duration, fo confidera- 
ble as what occurred on the laid fhurfday Night, 
which was the aid of October. This Ivieteor has 
been obferved in New-E ngland, at different Times, 
ever fince its firft Plantation } but I think at much lon- 
ger Intervals than of late Years, and never to fo great a 
Degree as the prefent Inftance : Nor indeed is there any 
recorded 'mt\\ePhiloJopbicalfranf actions, that I could 
think, by their Defcription, equal to it; excepting only 
that celebrated one of the 6th of March , 1716, obferved 
by the molt judicious and learned Dr. Halley, and in 
many Refpeds that alfo muft give the Preference to it. 
And on this Account I have thought the moil particu- 
lar Defcription of this Meteor would not be unaccepta- 
ble to you } and have therefore fent all my Notes rela- 
ting thereunto, which are yery numerous, almoft to 
every Change and Circumflance of the Appearance. I 
am perfwaded there is no better Way to arrive at the 
H true 
