( S61 ) 
AiiT. XXXII.—SCIENTIFIC INTELLIGENCE, 
I. NATURAL PHILOSOPHY, 
ASTRONOMY. 
1. Stricvis Observations on the Parallax of the Fixed Stars ^ 
Struve, in the second and third volumes of his Astronomi- 
cal Observations, has given the results of his method of deter- 
mining the sum of the parallaxes of several fixed stars, differing 
nearly 12 hours in right ascension, by means of a transit instru- 
ment furnished with seven wires. M. Struve gives 0'M6 as the 
parallax of ^ Ursse majoris, and 0"A5 as the sum of the parallaxes 
of « Cygni and < Ursse majoris. 
2. Elements of the Comet qf 1824. — The following are the 
elements of the comet of 1824, as deduced by the Reverend Dr 
Brinkley of Dublin from numerous observations : 
Passage of the Perihelion, Mean Time at Dublin, 1823, Dec. 9(1. 5^ 10' 12" 
Perihelion distance, - - - 0.23385 
Inclination of Orbit, - - - 76° 1' 43" 
Ascending Node, - - - - 303° 0' 44" 
Place of Perihelion, - * - 273 41 50 
Motion retrograde. 
This comet, which does not seem to have been observed be- 
fore, has nearly the same inclination and perihelion distance as 
that of 1677, the perihelion distance of the latter being 0.28059^ 
and its inclination 79° 8' 15" ; but in the other elements there 
is no agreement. On the 26th of January the comet was about 
45 millions of miles distant from the earth. 
The following elements are given by Encke and other astro- 
nomers in Professor Shumacher’s Astronomische Nachrichten^ 
No. 48. p. 491. 
Passage of Perihelion, 
Long, of Perihelion, - 
Long, of Node, 
Inclination of Orbit, 
Log. of Perihelion distance, 
Dec. 9<i.50660 Seeberg. 
275° 7'39".2 
303 8 35.4 
74 14 20 
9.3505684 
The following are the elements given by M. Hansen; 
Passage of Perihelion, - Dec. 9d.47193 Altona. 
Long, of Perihelion, - - 274° 33' 26" 
Long, of Node, - - 303 3 22.2 
Inclination of Orbit, - - 76 11 22.5 
Log. of Perihelion distance, - 9.3553934 
