Astronomical and Nautical Collections. 
motion was very slow throughout the time of the European 
observations. Brinkley’s first elements are founded only on 
the observations at Valparaiso: the second he has com- 
puted from the observation of the 30th January at Bremen, 
and those of Capt. Hall, made the Sth April and the 3d May. 
Rosenberger was able to represent both the European and 
the American observations sufficiently well by his parabola. 
The rest of the ‘vrbits are founded on the European observa- 
tions alone, The orbit seems to differ very little from a true 
parabola. Corr. Astr. 1820. Conn. des tems, 1824, Berl. 
Astr. Jahrb. 1824. Phil. Tr. 1822, Pt. i. Edinb. Phil, Journ. 
N. xiv. p.382. Schumacher Astr. Nachr. N. 2, p. 17. N. 11, 
p. 166. N. 24, p. 425. 
124, 1822. Discovered by Gambart at Marseilles the 12th May, by Pons at 
Marlia the 14th, and by the Oberlieutenant Biela, at 
Prague, the 16th: observed till the end of June. Zach 
Corresp. Astr. 1822, cah. ili. iv. v. Schumacher Astr. Nachr. 
N. 19, p. 298. N. 20, p. 309. Berl. Astr. Jahrb. 1825. 
(86.) 1822. Orbit corrected by Encke from Riimker’s observations at Pa- 
ramatta. Schumacher Astr. Nachr. N. 27, p. 39. Thelon- 
gitudes relate to the mean equinox of the 24th May. 
125. 1822, Discovered the 13th July by Pons, at Marlia: observed till the 
22d October. Only the second ellipsis of Encke is founded 
on the whole apparent are described : but the second parabo- 
lic orbit of Nicolai, and the third of Hansen represent also 
the whole of the observations hitherto published in the most 
satisfactory manner. Perhaps we may expect to receive from 
the Cape of Good Hope, or from New Holland, some observa- 
tions of the two last comets, as well as of that which was dis- 
covered on the 31st May, by Pons, at Marlia, near 6 Piscium, 
and which was little observed in Europe, and has not yet been 
computed, Zach. Corr. Astr. cah. v. Schumacher Astr. 
Nachr. N. 20, p. 307.; n. 21. Suppl. ; N. 22, p. 361, and 1. 
Suppl. ; N. 23, p. 393, and Suppl. ; N. 24, Suppl. Nicolai 
supposes the mean equinox of the 23d Oct.; Hansen in the 
second orbit, the Ist Sept. ; in the third the Ist October, and 
Encke, the 25th Oct. 1822. [See also Gambart in Conn. des 
tems, 1826. T'r.} 
ii. Further Remarks on the periodical Comer (86 Olb.) with conjec- 
tures on the effect of a resisting medium. 
By Professor Encxr. Bode's Alm. 1826, p. 124. 
The observations of Mr. Riimker have removed every possible 
doubt respecting the identity of the comet, and made it certain 
that future Astronomers will be able to recover it even if it should 
remain invisible for several revolutions. Fortunately, however, 
there is no reason to apprehend that it will escape us in its next 
