^00 Scientific Intelligence. 
The follov/ing elements of its orbit have been computed by 
M. Nicollet : 
Passage of the perihelion, S4th Jan. Mean time reckoned 
I 
from Noon. 
0.352593 
329 4' 36" 
144 15 22 
14 47 42 
Direct. 
1819, 23^ 8' 
' Perihelion distance, 
Longitude of ascending node. 
Longitude of perihelion upon the orbit, 
Inclination of the orbit. 
Heliocentric motion. 
This comet has been supposed to be the same as that of 
1805, and M. Enke of Seeberg has computed the following 
elements for an elliptical orbit : 
Passage of the perihelion, January 27. 1819, 3^ 13' 
Longitude of the perihelion, - - 156" 14' 8" 
Longitude of ascending node, - - 334 18 8 
Perihelion distance, _ - - _ 9.52579 
Half of the greater axis, _ - _ 2.343 
The larger axis of tijs ellipse is a little smaller than tliat of 
the orbit of Vesta, and corresponds to a revolution of about 3J 
years. See A^m. de Chim. et Phys. Eeb. 1819. 
6. Third Cornet o/"1818. — On the 29th November 1818, M. 
Pons discovered a third comet. The following are the parabo- 
lic elements of its orbit : 
Passage of the perihelion, 5th December 1818, at noon, at Paris. 
Perihelion distance, _ _ - _ 0.8564.3 
Longitude of ascending node, - - - 89° 55' 14'' 
Longitude of perihelion upon the orbit, - 101 46 58 
Inclination of the orbit, - ■ - - 63 10 30 
Heliocentric motion, - - - - Retrograde. 
7. Captain Kateds VeriJicoMon erfi the Latitude erfi' Arhury 
Hill . — Such as have attended to the progress and results of the 
trigonometrical survey of Britain, know that the iigure of the 
elliptic meridian, as deduced from the observations made in this 
country, differs from that found by observations made on the 
Continent, and in other parts of the world. This anomaly has 
given rise to various conjectures as to its cause. It has been 
supposed that there may have been some inaccuracy in the de- 
termination of the latitude of the station at Arbury Hill near 
Daventry in Northamptonshire j and accordingly mathematicians 
