Its indications are much more delicate
than formerly.'--'The Meteors on Nov. 14th were well observed. Eight
thousand and three hundred were registered. The variations of
frequency at different times were very well noted. The points of
divergence were carefully determined.'--Referring to the gradual
improvement in the steadiness of chronometers from 1851 to 1866, it
appears that from 1851 to 1854 the 'trial number' (which is a
combination of changes of weekly rate representing the fault of the
chronometer) varied from 34.8s to 52.5s, while from 1862 to 1866 it
varied from 21.2s to 25.8s.--The following statement will shew the
usual steadiness of the Great Clock on the Westminster Palace: On 38
per cent. of days of observation, the clock's error was below 1s. On
38 per cent, the error was between 1s and 2s. On 21 per cent. it was
between 2s and 3s. On 2 per cent. between 3s and 4s. On 1 per cent.
between 4s and 5s.--The Report contains an account of the
determination of the longitude of Cambridge U.S. by Dr B. A. Gould, by
means of galvanic currents through the Atlantic Cable, in the spring
of 1867: and advantage was taken of this opportunity for
re-determining the longitude of Feagh Main near Valencia in
Ireland.
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