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Scientific Intelligence . 
Corresponding. 
The Rev. George Young, A. M. of Whitby. 
Laurence Edmondston, Esq. of Zetland. 
David Don, Esq. Librarian to the Linnean Society. 
William Jack jun. Esq. Naturalist with Sir Stamford Raffles, Sumatra. 
J. S. Miller, Esq. A. L. S. Author of the Natural History of the Crinoidea. 
Foreign. 
Robert Lyal, M. D. of Moscow. 
Art. XXX.— SCIENTIFIC INTELLIGENCE. 
I. NATURAL PHILOSOPHY. 
ASTRONOMY. 
1. Second Comet of 1822. — This comet was discovered by 
M. Pons, at Marlia, on the 13th July 1822. It was seen by 
M. Gambard at Marseilles on the 20th July, and in Germany 
not till the 20th of August. The following are the parabolic 
element*, derived by M. Harding from observations on the 21st 
and 27th of August, and the 2d of September, and also those 
of M. Encke at Seeberg. 
Harding. 
Parabolic Orbit. 
Time of Perihelion, 1822, Oct. 23. 2 h 45' 1" 
Long, of Perihelion, - 272° 28' 3F 
Long, of Node, - - 92 24 50 
Inclination of Orbit, . . 52 28 46 
Log. of shortest distance, . 0.062358 
Excentricity, ... 
Log. of half the greater axis, 
Encre. 
Elliptical Orbit. 
Oct. 24. 99374 M. Time. 
270° 31' 30" .7 
93 
52 
4 52 .4 
39 41 .8 
0.0545019 
0.96617805 
1.5253033 
2. Longitude of New York . — From the solar eclipse of Au- 
gust 27. 1821, Professor Ren wick has deduced the longitude of 
New York, which he finds to be 74° 5' 11", or 56' 23.4" W. 
from Greenwich. The observations were made from the cupola 
of Columbia College, the latitude of which is 40° 42' 45". 
OI’TICS. 
3. Bauman'’ s Dynamiter for measuring Magnifying 
Powers . — This simple instrument consists of a small tube, 
Laving within it a mother-of-pearl scale, divided into tenths of a 
