850 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.

1851 May 2 On the Total Solar Eclipse of 1851, July 28. R. Inst.
(Lecture.)

1851 May 9 On the Vibration of a Free Pendulum in an R. Astr. Soc.
Oval differing little from a Straight Line (Memoirs)

1851 June 7 Report of the Astronomer Royal to the
Board of Visitors.

1851 July 2 The President's Address to the Twenty-first Athenaeum.
Meeting of the British Association for
the Advancement of Science, Ipswich.

1851 Oct. 17 On Julius Caesar's Expedition against Naut. Mag.