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XVII. Remarks on the Aurora Borealis . 
By Mr. Winn. In a Letter to Dr. 
Franklin. 
Spithead, Auguft 12, 1772. 
SIB, 
Redde, Jan. 20, ▼ Have often wifhed, that fomebody 
//+ JL would carefully collate a fufficient 
number of meteorological journals, with intent 
to obferve and clafs the feveral appearances in the 
atmofphere, before great changes in the weather, 
particularly before great dorms. I am perfuaded, 
from my own obfervation, that, in general, fuffi- 
cient indications, of impending tempeds preceed 
them a conliderable time, did we but carefully 
note them. The phenomenon, which I am going 
to mention, is one of thole indications which not 
only portend an approaching temped, but afcertain 
from what quarter it will come ; a circumdance, 
that may render it of edential lervice to feamen. 
I believe the obfervation is new, that the Aurora 
Borealis is condantly fucceeded by hard foutherly, 
or fouth-wed winds, attended with hazy weather, 
and lmall rain. I think, I am warranted from 
experience, to fay condantly ; for in twenty- three 
indances, that have occurred, fincel fird made the 
obfer- 
