PROVISIONAL RHPORTS, AND NOTICES. 425 
this time), and the observations of the small planets, for which 
the distance necessary for the parallaxes is wanting. 
The computation of geocentric longitude and latitude from 
A and NPD is finished in duplicate for Mercury, Venus and 
Mars, examined and compared. Jupiter is advanced (proba- 
bly now finished), and Saturn has been commenced (probably 
now far advanced). 
The computation of the Tabular Heliocentric places of all 
the planets, except the small ones, is finished in duplicate and 
examined. 
The computation of the Tabular Geocentric places is finish- 
ed for all the large planets, except the application of aberration 
to Saturn and Uranus, and a few observations of Jupiter. 
The reduced observed places have been confronted with the 
reduced tabular places for Mercury and Mars, and thoroughly 
examined by myself; and these are, in all important respects, 
ready for printing. Those for Venus have also been computed, 
but not yet thoroughly examined by me. 
The whole of this department will, inno long time, be ready 
for press. The only new work to be done upon it is the cal- 
culation of the co-efficients of tellurian and planetary heliocentric 
errors, which must be conceived to form the geocentric er- 
rors. 
Lunar Observations. 
The whole of the imperfect transits are completed; and this 
has been a very laborious operation. 
The apparent A of the stars for the clock-errors are 
formed, and are ready for application to the investigation of 
the moon’s right ascension, but are not yet applied. 
No other work is yet done for the lunar observations, though 
the books, &c. are prepared for many parts of the work. . 
G. B. Airy. 
To the Committee of the Physical and Mathematical 
Section of the British Association. 
Tue Report of the Committee on the Form of Vessels was 
read to the Meeting ; but in consequence of the extensive ta- 
bles and drawings required for its illustration, it has not yet 
been completed for publication. 
THE Committee appointed to superintend the extension of the 
Royal Astronomical Society's Catalogue of Stars, report— 
That the work is in considerable progress, and that it will 
probably be completed before the next meeting of the British 
Association in 1841. They further report, that 360/. have been: 
