Papers relating to the Royal Astronomical Society, including a galley proof of R. Sheepshanks' remarks on irradiation; a copy of a paper by S.M. Drach 'on the computation of ephemerises of the Moon'; a paper by Airy on the weights to be given to the separate results for terrestrial longitude determined by the observation of transits of the Moon and fixed stars; contributions to the annual report, 1850; a speech by Airy as President of the Royal Astronomical Society on delivering the medal to Otto von Struve; a report on the Revd T. Chevallier's method for finding the effect of the difference of parallax at different places upon the time of disappearance and reappearance of a star occulted by the Moon; a supplement to a paper by Airy on the regulation of the clockwork for effecting uniform movement of equatorials; an abstract of Mr Dale's paper on the influence exerted by heat upon the dispersive and refractive power of liquids; a report on Dr T. Henderson's numbers for converting solar into sidereal time; an extract from a letter sent to Airy by Professor P.A. Hansen on the lunar tables; copies of papers by Y. Villarceau and H. Breen on the elements of the orbits of Victoria; a letter concerning the name Victoria for J.R. Hind's newly discovered planet; reports on papers by S.M. Drach, Sir J.W. Lubbock, Professor T. Chevallier, Professor J. Challis and R.C. Carrington; list of Fellows of the Royal Astronomical Society, February 1850; and general correspondence from R. Sheepshanks, C.P. Smyth, A. de Morgan and others regarding the Royal Astronomical Society.