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Footnotes:

[1] The inferior planet Venus comes closer, but is not visible throughout
the night.

[2] The facts were collected with great care and ability by S. P. Rigaud,
and published by the Oxford University Press in 1832 as "Miscellaneous
Works and Correspondence of the Rev. James Bradley."

[3] Since the light must travel from the sun to Saturn _and back again to
the earth_, the interval would be more nearly 150 minutes.

[4] Monthly Notices of the Royal Astronomical Society, vol. xvii. p. 126.

[5] This should be Cambridge, _Mass._

[6] The distances do not represent the _total_ displacement, but only the
displacement towards Washington in one case and towards Pulkowa in the
other.

Transcriber's Notes: