1850 June 14 Letter from Hansen on his Lunar Tables.—Valz R. Astr. Soc. on an arrangement of double-image (Month. Not.) micrometer.—On the Computation of Longitude from Lunar Transits
1850 Dec. 13 On a Method of regulating the Clock-work R. Astr. Soc. for Equatoreals. (Month. Not.)
1850 Dec. 13 Supplement to a Paper "On the Regulation R. Astr. Soc. of the Clock-work for effecting Uniform (Memoirs.) Movement of Equatoreals."
1850 Dec. 27 On the Relation of the Direction of the Phil. Trans. Wind to the Age of the Moon, as inferred from Observations made at the Royal Observatory, Greenwich, from 1840 Nov. to 1847 Dec.
1851 Jan. 14 Remarks on Mr Wyatt's Paper on the Inst. C.E. Construction of the Building for the (Minutes.) Exhibition of the Works of Industry of all Nations in 1851.
1851 Feb. 15 Address on presenting the medal of the R. Astr. Soc. R. Astr. Soc. to Dr Annibale de (Month. Not.) Gasparis.
1851 Mar. 28 Letter to Professor Challis regarding the Adams Prize.
1851 Mar. 29 On Caesar's place of landing in Britain. Athenaeum.
1851 Suggestions to Astronomers for the Brit. Assoc.
Observation of the Total Eclipse of the
Sun on July 28, 1851.
1851 Apr. 11 On the Determination of the probable R. Astr. Soc.
Stability of an Azimuthal Circle by (Month. Not.)
Observations of Star and a permanent
Collimator.