378 Notices respecting New Books. 



The Second Part of the Second Volume of the Memoirs of 

 the Astronomical Society of London has just been published, 

 the contents of which are as follows : viz. 



On the latitude of rhe royal observatory at Greenwich. 

 By John Pond, Esq. — On the determination of latitudes by ob- 

 servations of azimuths and altitudes alone. By M. Littrow. — 

 Memoire sur differens points relatifs a la theorie des perturba- 

 tions des Planetes exposee dans la Mecanique Celeste. Par M. 

 Plana. — Mr. John Ramage's description of his large reflect- 

 ing telescopes. — On parallaxes. By J. J. Littrow. — On the 

 co-latitude of the observatory of Stephen Groombridge, Esq., 

 at Blackheath; determined by his own observations of cir- 

 cumpolar stars, reduced by the constant of refraction 58", 133 

 at 45°. — Observations of the eclipses of Jupiter's satellites, 

 made at Futty Ghur, on the Ganges, (N. Lat. 27° 21' 35'') 

 in 1824-5. By Major J. A. Hodgson. — A comparison of ob- 

 servations made on double-stars. By Professor Struve. — 

 Observations of the occultation of Saturn on the 30th Octo- 

 ber, 1825. By R. Cornfield, Esq. and J. Wallis, Esq.— Ac- 

 count of some observations made with a 20-feet reflecting te- 

 lescope by J. F. W. Herschel, Esq., comprehending, 1. De- 

 scription and approximate places of 321 new double and tri- 

 ple stars. 2. Observations of the second comet of 1825. 3. An 

 account of the actual state of the great nebula in Orion, com- 

 pared with those of former astronomers. 4. Observations of 

 the nebula in the girdle of Andromeda. — Explanation of the 

 method of observing with the two mural circles, as practised 

 as present at the royal observatory at Greenwich. By John 

 Pond,- Esq. — Extracts from three letters, addressed by M. 

 Gambart, Director of the royal observatory at Marseilles, 

 to James South, Esq., M.A.S., respecting the discovery, and 

 elements of the orbit, of a comet, which appears to be the 

 same with that of 1772 and 1805. — Report of the Committee 

 appointed by the Council of the Astronomical Society of Lon- 

 don, for the purpose of examining the telescope constructed 

 by Mr. Tulley, by order of the council. — Micrometrical Ob- 

 servations of the planet Saturn, made with Fraunhofer's large 

 refractor, at Dorpat. By Professor Struve. — Summary of the 

 observations made for the determination of the latitude of the 

 observatory of Wilna. By J. Slawinsky.— Supplement to a 

 former paper " On the latitude of the royal observatory at 

 Greenwich." By John Pond, Esq. — Report of the Council of 

 the Society to the sixth annual general Meeting. — An address 

 delivered at a special general meeting of the Astronomical 

 Society of London, on April 14, 1826, on presenting the gold 

 medals to J. F. W. Herschel, Esq., J. South, Esq., and Pro- 

 fessor 



