red in 1830, also at London.

[664] See note 441, page 196.

[665] Thomas Kerigan wrote _The Young Navigator's Guide to the siderial and
planetary parts of Nautical Astronomy_ (London, 1821, second edition 1828),
a work on eclipses (London, 1844), and the work on tides (London, 1847) to
which De Morgan refers.

[666] Jean Sylvain Bailly, who was guillotined. See note 365, page 166.

[667] See note 670, page 309.

[668] Laurent seems to have had faint glimpses of the modern theory of
matter. He is, however, unknown.

[669] See note 133, page 87.

[670] Francis Baily (1774-1844) was a London stockbroker. His interest in
science in general and in astronomy in particular led to his membership in
the Royal Society and to his presidency of the Astronomical Society. He
wrote on interest and annuities (1808), but his chief works were on
astronomy.

[671] If the story is correctly told Baily must have enjoyed his statement
that Gauss was "the oldest mathematician now living." As a matter of fact
he was then only 58, three years the junior of Baily himself. Gauss was
born in 1777 and died in 1855, and Baily was quite right in saying that he
was "generally thought to be the greatest" mathematician then living.

[672] Margaret Cooke, who married Flamsteed in 1692.

[673] John Brinkley (1763-1835), senior wrangler, first Smith's prize-man
(1788), Andrews professor of astronomy at Dublin, first Astronomer Royal
for Ireland (1792), F.R.S. (1803), Copley medallist, president of the Royal
Society and Bishop of Cloyne. His _Elements of Astronomy_ appeared in 1808.

[674] See note 248, page 124.

[675] See note 276, page 133.

[676] See note 352, page 161.

[677] "It becomes the doctors of the Sorbonne to dispute, the Pope to
decree, and the mathematician to go to Paradise on a perpendicular line."

[678] See note 124, page 83.

[679] See note 621, page 288.

[680] Sylvain van de Weyer, who was born at Louvain in 1802. He was a
jurist and statesman, holding the portfolio for foreign affairs
(1831-1833), and being at one time ambassador to England.

[681] Henry Crabb Robinson (1775-1867), correspondent of the _Times_ at
Altona and in the Peninsula, and later foreign editor. He was one of the
founders of the Athenaeum Club and of University College, London. He seems
to have known pretty much every one of his day, and his posthumous _Diary_
attracted attention when it appeared.

[682] Was this Whewell, who was at Trini