I confined myself on this occasion
to the chronometers purchased by the Admiralty. In March a
pigeon-house was made for exposure of chronometers to cold.--The Lunar
and Planetary Reductions were going on steadily.--I was consulted
about an Observatory at Oxford, where I supported the introduction of
the Heliometer.--The stipend of the Bakerian Lecture was paid to me
for my explanation of Brewster's new prismatic fringes.--The business
of the Cape Observatory and Survey occupied much of my time.--In 1838
the Rev. H. J. Rose (Editor of the Encyclopaedia Metropolitana) had
proposed my writing a Paper on Tides, &c.; In Oct. 1840 I gave him
notice that I must connect Tides with Waves, and in that way I will
take up the subject. Much correspondence on Tides, &c., with Whewell
and others followed.
"With regard to the Magnetical and Meteorological Establishment. On
June 18th Mr Lubbock reported from the Committee of Physics of the
Royal Society to the Council in favour of a Magnetic and
Meteorological Observatory near London. After correspondence with
Sheepshanks, Lord Northampton, and Herschel, I wrote to the Council on
July 9th, pointing out what the Admiralty had done at Greenwich, and
offering to cooperate.
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