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Art. XXIV. —SCIENTIFIC INTELLIGENCE. 
ASTRONOMY. 
1. Comets . — The following are the particulars of two Comets 
at present visible in Europe. 
The First Comet. 
Observatory , Passy , August 21. 1825. 
Right Ascension 4 h 15' 2.96", at 23 h 36' 18" 
Declination 21° 40 50.07 
28 43 43 
Sidereal time at Passy. 
Right Ascension 4 h 14/ 49", 
Declination 21° 26 0 . 
August 22. 1825, 
36" Sidereal time. 
This comet has no visible tail, is very faint, and has the ap- 
pearance of a nebula. The place on the 21st is tolerably ex- 
act ; that given on the 22d is only approximate ; it will however 
be amply sufficient to enable observers to find it. It is visible 
in a night glass. 
The Second Comet, or the Comet of short period. 
Right Ascension 
Declination 
August 21 
7 b 53' 29.31" \ 
28° 40 24.45 N J 
. 1825. 
at l h 39' ± Sidereal time. 
August 22. 1825. 
Right Ascension 8 b 1' 29.16" 
Declination 28° 9 56.78 N 
at l h 39^ ± Sidereal time. 
This comet also has no appearance of tail ; its observed place 
differs so little from that given in Eicke’s Ephemeris, that, by 
placing the instrument according to the data there given, the 
comet will be easily found. It is not visible in the night-glass, 
yet it is much more distinct than the preceding comet. The 
observations here published were made with a seven feet equa- 
torial instrument, by James South, F. It. S Passy , near 
Paris , Aug. 23. 1825. 
METEOROLOGY. 
2. On the Thermometrical State of the Terrestrial Globe.— 
M. Arago, in an article in the Annales de Physique,” discusses 
the question of the temperature of the globe at its surface, and ar- 
rives at this conclusion, that, in Europe in general, and in particu- 
