Sir
In reply to your note of the 6th inst. I beg to acquaint you that in the only Ephemeris of the Comet1 I can now lay my hands on, the places are not give [sic] for the 10th, 20th, or 30th, instant. The nearest to these days are as follows, or rather the following are the places for 4 equidistant periods of fo eight days
| R.A.2 | Dec.3 | Meridian | Passage (Greenwich) | |
| Aug 11 | 5h 31m·43 | 23º 22º·2 | 20h 12” | 12 mins |
| 19 | 5 38 ·72 | 24 14 ·3 | 19 48 | |
| 27 | 5 46 ·62 | 25 21 ·1 | 19 24 | 10½ mins |
| Sept 4 | 5 55 ·80 | 26 53 ·7 | 19 2 |
The above is taken from the Nautical Almanac for 18354 where further information will be found
The appearance of the comet will most probably be notified in the newspapers before it reaches the Society.5
I remain Sir Your obedt Servt
A De Morgan
Somerset House
August 7/35
[address panel:]
H. F. Talbot Esq F.R.A.S.
Lacock Abbey
near Chippenham
Please cite as “TALBOT3113,” in Ɛpsilon: accessed on