[212] "An accomplished fact [an accomplished fault]."

[213] See _Extracts from the Diary and Letters of Mrs. Mary Cobb_, London,
1805.

[214] "Gentle in manner."

[215] "Brave in action." The motto of Earl Newborough was "Suaviter in
modo, fortiter in re."

[216] "Reduction to an absurdity," a method of proof occasionally used in
geometry and in logic.

[217] "He has lost the right of being moved (struck) by evidence."

[218] For _radix quadratus_. The usual root sign is supposed to be derived
from _r_ (for radix), and at one time _q_ was commonly used for square, as
in Viete's style of writing Aq for A^2.

[219] The Garde Douloureuse was a castle in the marches of Wales and
received its name because of its exposure to attacks by the Welsh.

[220] "Out of the fight."

[221] "Hidden."

[222] John Cam Hobhouse (1786-1869), Baron Broughton, was committed to
Newgate for two months in 1819 for his anonymous pamphlet, _A Trifling
Mistake_. This was a great advertisement for him, and upon his release he
was at once elected to parliament for Westminster. He was a strong
supporter of all reform measures, and was Secretary for War in 1832. He was
created Baron Broughton de Gyfford in 1851.

[223] Thomas Erskine (1750-1823), the famous orator. He became Lord
Chancellor in 1806, but sat in the House of Commons most of his life.

[224] The above is explained in the MS. by a paragraph referring to some
anagrams, in one of which, by help of the orthography suggested, a
designation for this cyclometer was obtained from the letters of his
name.--S. E. De M.

[225] "A personal verb agrees with its subject."

[226] See Vol. I, page 326, note 1 {700}.

[227] See Vol. I, page 326, note 2 {701}.

[228] Apparently unknown to biographers.

[229] The _Bibliotheca Mathematica_ of Ludwig Adolph Sohncke (1807-1853),
professor of mathematics at Koenigsberg and Halle, covered the period from
1830 to 1854, being completed by W. Engelmann. It appeared in 1854.

[230] See Vol. I, page 392, note 2 {805}.

[231] See Vol. I, page 43, note 7 {32}.

[232] See Vol. II, page 91, note 187.

[233] Mason made a notable balloon trip from London to Weilburg, in the
Duchy of Nassau, in November, 1836, covering 500 miles in 18 hours. He
published an account of this trip in 1837, and a work entitled
_Aeronautica_ in 1838.

[234] William Harrison Ainsworth (1805-1885) the novelist.

[235] On this question see Vol. I, page 326, note 2 {70