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This prevented my comparing the comet with the 
neighbouring ftars for a quarter of an hour that 
it continued vifible. All I could do was to draw the 
configuration of thefe ftars with the comet, both 
with the four feet and half telefcope and with a little 
two feet refrading telefcope, which was faftened 
over the refledor in a parallel fituation. From this 
configuration, I have edimated the pofition of the 
comet, as is feen in the fecond table. 
The 1 2th, the Iky, which had been cloudy all day, 
cleared up a little in the evening. The comet ap- 
peared near the horizon for a few minutes, but was 
foon hid behind the chimneys. All I could do was 
to eftimate its pofition relative to the neighbouring 
ftars. 
The 13th, the fky was quite overcad; but the 
14th having cleared up in the evening, I could fee 
the comet, but clofe to the horizon, at the height of 
6° for a few minutes j and it foon difappeared, be- 
ing intercepted by terredrial objeds too high above 
the horizon, and which I could not keep clear of. 
All I was able to do in the fhort interval it was vi- 
fible, was to take a hady edimate of its pofition with 
refped to the dar A of Pilces, The brightnefs of 
the twilight prevented my feeing the comet earlier. 
The 15th and the 17th, the fky was pretty clear 
in the evening ; but I could not fee the comet at all, 
becaufe of the bright twilight, which continued till 
the fetting of the comet. 
The comet being no longer vifible at night, on 
account of its getting into the fun’s rays, Mr. De 
L’Ide and I examined the exaded obfervations I had, 
made, which helped us to determine the time and 
the 
