, in Paris, for 34 years. The work
to which De Morgan refers is probably the _Fameux Probleme de la quadrature
du cercle, resolu geometriquement par le cercle et a ligne droite_ that
appeared in 1683.

[621] On Tycho Brahe see Vol. I, page 76, note 3 {112}.

[622] Wilhelm Frederik von Zytphen also published the _Tidens Stroem_, a
chronological table, in 1840. The work to which De Morgan refers, the
_Solens Bevaegelse i Verdensrummet_, appeared first in 1861. De Morgan seems
to have missed his _Nogl Ord om Cirkelens Quadratur_ which appeared in
1865, at Copenhagen.

[623] James Joseph Sylvester (1814-1897), professor of natural philosophy
at University College, London (1837-1841), professor of mathematics at the
University of Virginia (1841-1845), actuary in London (1845-1855),
professor of mathematics at Woolwich (1877-1884) and at Johns Hopkins
University, Baltimore (1877-1884), and Savilian professor of geometry at
Oxford (1884-1894).

[624] See Vol. I, page 76, note 3 {112}.

[625] See Vol. II, page 205, note 349.

[626] See Vol. I, page 76, note 3 {112}.

[627] See Vol. I, page 46, note 1 {42}.

[628] See Vol. II, page 183, note 318.

[629] See Vol. I, page 321, note 2 {691}.

[630] James Mill, born 1773, died 1836.

[631] See Vol. II, page 3, note 11.

[632] See Vol. II, page 3, note 13.

[633] See Vol. II, page 3, note 14.

[634] This anecdote is printed at page 4 (Vol. II); but as it is used in
illustration here, and is given more in detail, I have not omitted
it.--S.E. De M.

[635] See Vol. II, page 4, note 15.

[636] See Vol. I, page 382, note 13 {786}.

[637] "Monsieur, (a + b^{n})/n = x, whence God exists; answer that!"

[638] "Monsieur, you know very well that your argument requires the
development of x according to integral powers of n."

[639] See Vol. I, page 153, note 4 {337}.

[640] Thomas Love Peacock (1785-1866) an English novelist and poet.

[641] Perhaps Dr. Samuel Warren (1807-1877), the author of _Ten Thousand a
Year_ (serially in Blackwood's in 1839; London, 1841).

[642] See Vol. I, page 255, note 6 {584}.

[643] "From many, one; much in little; Ultima Thule (the most remote
region); without which not."

[644] Spurius Maelius (fl. 440 B. C.), who distributed corn freely among the
poor in the famine of 440 B. C. and was assassinated by the patricians.

[645] Spurius Cassius Viscellinus, Roman consul in 502, 493, and 486 B. C.
Put to death in 485.

[646] "O what a