GREAT BlUTAIN AND IRELAND. 359 



GREENWICH. 

 Royal Observatory. — Continued. 



A Catalogue of Circurapolar Stars, deduced from the Ob- 

 servations of Stephen Guoombuidue. Reduced to Jan. 

 1, 1810. Edited by George Biddell Airy. London, 1838. 

 4to. 



A Catalogue of 11 1 2 Stars, reduced from observations made 

 at the Royal Observatory of Greenwich, from the years 

 1816 to 1833. London, 1833. Folio. 



Catalogue of 1516 Stars, formed from the Observations 

 made during Si.\: Years, from 1848 to 1853, at the Royal 

 Observatory, Greenwich, and reduced to the Epoch 1850. 

 London, 1856. 4to. 



Tables containing the sura of three Equations of Aberration, 

 solar Nutation, and Precession, for twenty-three principal 

 fixed Stars, for every day in leap year, the first, second, 

 and third years after. London. Folio, pp. 48. 



The sum of three Equations of Aberration, solar Nutation, 

 and Precession, of forty principal fixed Stars, for every 

 day of the year, in leap year, the first, second, and third 

 years after. London. Folio, pp. 85. 



Bessell's Refraction Tables, modified and explained. Lon- 

 don, 1853. 4to. pp. 27. 



Account of Improvements in Chronometers, made by Mr. 

 John Sweetman Eiffe. With an Appendix, containing 

 Mr. Robert Molyneux's Specification of a Patent for 

 Improvements in Chronometers. London, 1842. 4to. 

 pp. 25. 



Rates of Chronometers on trial for purchase by the Board 

 of Admiralty, at the Royal Observatory. Greenwich, 

 1849. 4to. 



HARTWELL. 



Hart^well Observatory. 



The Cycle of Celestial Objects continued at the Ilartwell 

 Observatory to 1859. AVith a Notice of Recent Dis- 

 coveries, including details from the ^des Hartwellianae. 

 By Vice-Admiral W. 11. S.mytu. London, 1860. 4to. 



