( 4«3 ) 
was to be expe&ed ; fo it left all of them furprfzed and 
aftonifhed at the Novelty thereof. When therefore for 
the future any fuch thing (hall happen, all thofe that are 
curious in Agronomical Matters, are hereby admonilhed 
and entreated to fet their Clocks to the apparent Time at 
London, for Example, by allowing fo many Minutes as is 
the Difference of Meridians ; and then to note at the End 
of every half Hour precifely, the exadi Situation of what 
at that time appears remarkable in the Sky ; and particu- 
larly the Azimuths of thofo very tall Pyramids fo eminent 
above the reft, and therefore likely to be feen furtheft : 
ro the intentthat by comparing thofe Obfervations taken 
in the fame Moment in diftant Places, the Difference of 
their Azimuths may ferve to determine how far thofo Py 
ramids are from us 
It being now paft Eleven of the Clock, and nothing 
new offering it folf to our View, but repeated Phases of 
the fame Sperftacle; we thought it no longer worth while 
to bear the Chill of the night- Air Jub dio. Wherefore 
being returned to my Houfe, I made hafte to my upper 
Windows, which conveniently enough regard the N. E. 
Parts of Heaven, and foon found that the two Lamiru 
or Streaks parallel to the Horizon, of which we have 
been fpeaking, had now wholly difappeared ; and the 
whole Spectacle reduced it felf to the Refemblance of a 
very bright Crepufculum fetling on the Northern Horizon* 
fo as to be brighteft and higheft under the Pole it folf; 
from whence it fpread both Ways* into the N. E. and 
N. W. Under this, in the middle thereof, there ap- 
peared a very black Space, as it were the Segment of a 
lefler Circle of the Sphere cut off by the Horizon. It 
feemed to the Eye like a dark Cloud, but was not fo; 
for by the Telefcope the fmall Stars appeared through it 
more clearly than ulual, confidering how low they were .* 
and upon this as a Bafis our Lumen Auroriforme reited, 
which-. 
