of Meteorological Obfervations. 2eR 
upon the other parts which are difpofed to undergo 
that change, feems on that account nearly impof- 
fible. 
It may not be improper to obferve, with regard 
to ftreamers, that their central point, to which they 
always tend, is not directly in our zenith, but about 
ten degrees to the fouthward of it; and that it is 
probable this deviation of the midft of the crown of 
the Aurora Borealis, may gradually diminifh and 
difappear as we approach the equator, but will 
probably increafe the nearer we are to the poles; 
and, alfo, that every different place may have its 
own Aurora Borealis, fimilar, though in moft ref- 
pects different from that of every other; in the 
fame manner, that every place from whence the 
enlightened fide of a precipitating cloud can be 
_ properly feen, has its own diftinct rainbow at one 
and the fame inftant: and, therefore, that there is 
no occafion for {treamers to be at fuch a prodigious 
height in the atmofphere, in order to be feen at 
once over a whole continent. For if the atmofphere 
is in exactly the fame ftate of decompofition over 
all that extent, it will give the fame appearance to 
obfervers at feveral thoufand miles diftance, at one 
and the fame time. ‘That ftreamers are often at no 
great height in the atmofphere, may be concluded 
from their appearing at times to the obferver, to 
be between his eye and the tops of very high 
mountains, as I have more than once noted; and 
from their being frequently heard to make a hiffing, 
or 
