On Sept. 16th I received
Simms's assurance that he was hastening the Mural Circle.--In this
autumn I seriously took up the recalculation of my Long Inequality of
Venus and the Earth, and worked through it independently; thus
correcting two errors. On Nov. 10th I went to Slough, to put my Paper
in the hands of Mr Herschel for communication to the Royal
Society. The Paper was read on Nov. 24th.--This was the year of the
first Meeting of the British Association at York. The next year's
meeting was to be at Oxford, and on Oct. 17th I received from the
Rev. W. Vernon Harcourt an invitation to supply a Report on Astronomy,
which I undertook: it employed me much of the winter, and the
succeeding spring and summer.--The second edition of my Tracts was
ready in October. It contained, besides what was in the first edition,
the Planetary Theory, and the Undulatory Theory of Light. The Profit
was _L80_.--On Nov. 14th I presented to the Cambridge Philosophical
Society a Paper 'On a remarkable modification of Newton's Rings': a
pretty good Paper.--In November the Copley Medal was awarded to me by
the Royal Society for my advances in Optics.--Amongst miscellaneous
matters I was engaged in correspondence with Col.
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